Professor Ling has been a Fellow of the American Physical Society since 2005. He joined the faculty of Brown University in 1996. A 1984 graduate of Wuhan University, China, he received his M.S. from the Chinese Academy of Sciences in 1987 and his Ph.D. from the University of Connecticut in 1992. He has done postdoctoral research at Yale University (1992-1994) and the NEC Research Institute in Princeton, NJ (1994-1996). He was a visiting professor at Delft University of Technology in the Netherlands from 2002-2003 and a guest professor at Wuhan University from 2002-2005, a China Thousand-Talent Plan (千人计划) Visiting Professor at Southeast University (Nanjing) from 2015-2017. During 2018-2020, Prof. Ling was a visiting professor (and was the founding director for the Institute for Advanced Study from Jan.2018-Jan.2019) at Soochow University in Suzhou, China. Professor Ling received a Research Innovation Award from the Research Corporation in 1998, and he was an A.P. Sloan Fellow from 1998-2001 and a J.S. Guggenheim Fellow from 2002-2003.
| Huaguang Wang, Zexin Zhang, Xinsheng Sean Ling. "2D phase behaviors of colloidal ellipsoids and rods." Frontiers in Physics, vol. 10, 2022, pp. 1043983. |
| Dan Zhou(周丹), Han-Song Zeng(曾寒松), Rujun Tang(汤如俊), Zhihong Hang(杭志宏), Zhiwei Hu(胡志伟), Zixi Pei(裴子玺), and Xinsheng Ling(凌新生). "On the origin of the anomalous sign reversal in the Hall effect in Nb thin films." Chinese Physics B., vol. 31, 2022, pp. 037403. |
| Chen, Ya, Tan, Xinlan, Wang, Huaguang, Zhang, Zexin, Kosterlitz, J. M., Ling, Xinsheng Sean. "2D Colloidal Crystals with Anisotropic Impurities." Physical Review Letters, vol. 127, no. 1, 2021. |
| Tan, Xinlan, Chen, Ya, Wang, Huaguang, Zhang, Zexin, Ling, Xinsheng Sean. "2D isotropic–nematic transition in colloidal suspensions of ellipsoids." Soft Matter, 2021. |
| Zeng, Hansong, Zhou, Dan, Liang, Guoqing, Tang, Rujun, Hang, Zhi H., Hu, Zhiwei, Pei, Zixi, Ling, X. S. "Kondo effect and superconductivity in niobium with iron impurities." Scientific Reports, vol. 11, no. 1, 2021. |
| Xinsheng Sean Ling. "DNA sequencing using nanopores and kinetic proofreading." Quantitative Biology, 2020. |
| Kim SC, Yu L, Pertsinidis A, Ling XS. "Dynamical processes of interstitial diffusion in a two-dimensional colloidal crystal." Proceedings of the National Academy of Sciences, vol. 117, no. 24, 2020, pp. 13220-13226. |
| Xia, Deying, Huynh, Chuong, McVey, Shawn, Kobler, Aaron, Stern, Lewis, Yuan, Zhishan, Ling, Xinsheng Sean. "Rapid fabrication of solid-state nanopores with high reproducibility over a large area using helium ion microscope." Nanoscale, vol. 10, 2018, pp. 5198-5204. |
| Luo, X., Stanev, V., Shen, B., Fang, L., Ling, X. S., Osborn, R., Rosenkranz, S., Benseman, T. M., Divan, R., Kwok, W.-K., Welp, U. "Antiferromagnetic and nematic phase transitions inBaFe2(As1−xPx)2studied by ac microcalorimetry and SQUID magnetometry." Physical Review B, vol. 91, no. 9, 2015. |
| Ling, Daniel Y, Ling, Xinsheng Sean. "On the distribution of DNA translocation times in solid-state nanopores: an analysis using Schrödinger’s first-passage-time theory." Journal of Physics: Condensed Matter, vol. 25, no. 37, 2013, pp. 375102. |
| Kim, Sungcheol, Yu, Lichao, Huang, Stephanie, Pertsinidis, Alexandros, Ling, Xinsheng S. "Optical tweezers as a micromechanical tool for studying defects in 2D colloidal crystals." Optical Trapping and Optical Micromanipulation VIII, 2011. |
| Hanson, H. A., Wang, X., Dimitrov, I. K., Shi, J., Ling, X. S., Maranville, B. B., Majkrzak, C. F., Laver, M., Keiderling, U., Russina, M. "Structural evidence for an edge-contaminated vortex phase in a Nb crystal using neutron diffraction." Physical Review B, vol. 84, no. 1, 2011. |
| Wang, Xi, Hanson, Helen A., Ling, Xinsheng Sean, Majkrzak, Charles F., Maranville, Brian B. "Three-dimensional spatially resolved neutron diffraction from a disordered vortex lattice." J Appl Cryst, vol. 44, no. 2, 2011, pp. 414-417. |
| Venkat S.K. Balagurusamy, Paul Weinger, & Xinsheng Sean Ling. "Detection of DNA hybridizations using solid-state nanopores." Nanotechnology, vol. 21, no. 33, 2010, pp. 335102. |
| Peng, Hongbo, Ling, Xinsheng Sean. "Reverse DNA translocation through a solid-state nanopore by magnetic tweezers." Nanotechnology, vol. 20, no. 18, 2009, pp. 185101. |
| Pertsinidis, Alexandros, Ling, Xinsheng Sean. "Statics and Dynamics of 2D Colloidal Crystals in a Random Pinning Potential." Phys. Rev. Lett., vol. 100, no. 2, 2008. |
| Branton, Daniel, Deamer, David W, Marziali, Andre, Bayley, Hagan, Benner, Steven A, Butler, Thomas, Di Ventra, Massimiliano, Garaj, Slaven, Hibbs, Andrew, Huang, Xiaohua, Jovanovich, Stevan B, Krstic, Predrag S, Lindsay, Stuart, Ling, Xinsheng Sean, Mastrangelo, Carlos H, Meller, Amit, Oliver, John S, Pershin, Yuriy V, Ramsey, J Michael, Riehn, Robert, Soni, Gautam V, Tabard-Cossa, Vincent, Wanunu, Meni, Wiggin, Matthew, Schloss, Jeffery A. "The potential and challenges of nanopore sequencing." Nat Biotechnol, vol. 26, no. 10, 2008, pp. 1146-1153. |
| Daniilidis, N. D., Park, S. R., Dimitrov, I. K., Lynn, J. W., Ling, X. S. "Emergence of Quasi-Long-Range Order below the Bragg Glass Transition." Phys. Rev. Lett., vol. 99, no. 14, 2007. |
| Daniilidis, Nikolaos, Dimitrov, Ivo, Ling, Xinsheng Sean. "Ewald construction and resolution function for rocking-curve small-angle neutron scattering experiments." J Appl Cryst, vol. 40, no. 5, 2007, pp. 959-963. |
| Park, Sang Ryul, Peng, Hongbo, Ling, Xinsheng S. "Fabrication of Nanopores in Silicon Chips Using Feedback Chemical Etching." Small, vol. 3, no. 1, 2007, pp. 116-119. |
| Daniilidis, N. D., Dimitrov, I. K., Mitrović, V. F., Elbaum, C., Ling, X. S. "Magnetocaloric studies of the peak effect in Nb." Physical Review B, vol. 75, no. 17, 2007. |
| Dimitrov, I. K., Daniilidis, N. D., Elbaum, C., Lynn, J. W., Ling, X. S. "Peak Effect in Polycrystalline Vortex Matter." Phys. Rev. Lett., vol. 99, no. 4, 2007. |
| Wu, Shanshan, Park, Sang Ryul, Ling, Xinsheng Sean. "Lithography-Free Formation of Nanopores in Plastic Membranes Using Laser Heating." Nano Letters, vol. 6, no. 11, 2006, pp. 2571-2576. |
| Ling, Xinsheng Sean. "Dislocation dynamics: Scars on a colloidal crystal ball." Nature Materials, vol. 4, no. 5, 2005, pp. 360-361. |
| Storm, A. J., Chen, J. H., Ling, X. S., Zandbergen, H. W., Dekker, C. "Electron-beam-induced deformations of SiO[sub 2] nanostructures." J. Appl. Phys., vol. 98, no. 1, 2005, pp. 014307. |
| Pertsinidis, Alexandros, Ling, Xinsheng Sean. "Video microscopy and micromechanics studies of one- and two-dimensional colloidal crystals." New Journal of Physics, vol. 7, 2005, pp. 33-33. |
| Storm, A. J., Chen, J. H., Ling, X. S., Zandbergen, H. W., Dekker, C. "Fabrication of solid-state nanopores with single-nanometre precision." Nature Materials, vol. 2, no. 8, 2003, pp. 537-540. |
| Park SR, Choi SM, Dender DC, Lynn JW, Ling XS. "Fate of the peak effect in a type-II superconductor: multicriticality in the Bragg-Glass transition." Phys. Rev. Lett., vol. 91, no. 16, 2003, pp. 167003. |
| Pertsinidis, Alexandros, Ling, X. S. "Diffusion of point defects in two-dimensional colloidal crystals." Nature, vol. 413, no. 6852, 2001, pp. 147-150. |
| Pertsinidis, Alexandros, Ling, X. S. "Equilibrium Configurations and Energetics of Point Defects in Two-Dimensional Colloidal Crystals." Physical Review Letters, vol. 87, no. 9, 2001. |
| Ling, X. S., Park, S. R., McClain, B. A., Choi, S. M., Dender, D. C., Lynn, J. W. "Superheating and Supercooling of Vortex Matter in a Nb Single Crystal: Direct Evidence for a Phase Transition at the Peak Effect from Neutron Diffraction." Physical Review Letters, vol. 86, no. 4, 2001, pp. 712-715. |
| X.S. Ling,S.J. Smullin,J.E. Berger,W.L. Karlin,D.E. Prober & Ruixing Liang. "Equilibrium and driven vortex phases in the anomalous peak effect." Philosophical Magazine Letters, vol. 79, 1999, pp. 399-407. |
| Shi, Jing, Ling, X. S., Liang, Ruixing, Bonn, D. A., Hardy, W. N. "Giant peak effect observed in an ultrapureYBa2Cu3O6.993crystal." Physical Review B, vol. 60, no. 18, 1999, pp. R12593-R12596. |
| Ling, X. S., Berger, J. E., Prober, D. E. "Nature of vortex lattice disordering at the onset of the peak effect." Physical Review B, vol. 57, no. 6, 1998, pp. R3249-R3252. |
| Ling, X. S., Lezec, H. J., Higgins, M. J., Tsai, J. S., Fujita, J., Numata, H., Nakamura, Y., Ochiai, Y., Tang, Chao, Chaikin, P. M., Bhattacharya, S. "Nature of Phase Transitions of Superconducting Wire Networks in a Magnetic Field." Physical Review Letters, vol. 76, no. 16, 1996, pp. 2989-2992. |
| Chao Tang, Xinsheng Ling, S. Bhattacharya and P. M. Chaikin. "Peak effect in superconductors: melting of Larkin domains." EPL (Europhysics Letters), vol. 35, no. 8, 1996, pp. 597-602. |
| X.S. Ling, J.D. McCambridge, N.D. Rizzo, J.W. Sleight, D.E. Prober, L.R. Motowidlo, and B.A. Zeitlin. "Fluctuation Effects on a Strongly Pinned Vortex Lattice in a Thin Type-II Superconducting Wire." Physical Review Letters , vol. 74, no. Vol. 74, Iss. 5 — 30 January 1995, 1995, pp. 805. |
| Field, Stuart, Witt, Jeff, Nori, Franco, Ling, Xinsheng. "Superconducting Vortex Avalanches." Physical Review Letters, vol. 74, no. 7, 1995, pp. 1206-1209. |
| X. Ling and J.I. Budnick. "AC Magnetic Susceptibility Studies of Type-II Superconductors: Vortex Dynamics." Magnetic Susceptibility of Superconductors and Other Spin Systems, edited by R.A. Hein, T.L. Francavilla, & D.H. Liebenberg, new york, new york, Plenum Press, 1991, pp. 377. |
Experimental Condensed Matter Physics:
Colloid Physics: My group has done important work in colloidal defects, and driven dynamics in disordered colloid. We are starting a new 2D colloidal glass experiment at Brown in collaboration with our theory colleagues Prof. J. M. Kosterlitz and Prof. R. A. Pelcovits.
Nanobiophysics: Recent outbreak of coronavirus in my hometown of Wuhan is forcing me to rethink my research in nanobioscience. I will update on this topic once I have a better idea on what I can contribute in this field.
Kondo physics: It was assumed since 1960s that iron impurities in niobium cannot retain their magnetic moment (due to a large density of states at Fermi surface of the host metal). Thus it was a surprise that we found a Kondo effect in granular films of Nb: Hansong Zeng, Dan Zhou, Guoqing Liang, Rujun Tang, Zhi H. Hang, Zhiwei Hu, Zixi Pei & X. S. Ling, Kondo effect and superconductivity in niobium with iron impurities, Scientific Reports, 11, 14256 (2021).
Colloid Physics: 2D colloidal matter has emerged as an important model system for addressing fundamental problems in condensed matter physics. This proposed research is a joint experiment-theory effort to address two sets of related questions: (1) What is the mechanism in the recently discovered 2D colloidal glasses of anisotropic particles? (2) What kind of statistical mechanics do edge dislocations play in a 2D crystal? Both sets of problems are connected at the fundamental level since it is vitally important that we interpret correctly the observed dynamical behaviors in terms of the underlying longwave length physics.
The first direction of this project will be to investigate the physical mechanism of a two-step 2D colloidal glass transition of rods, by experiments and theoretical modeling. Recently it has been found that when monodispersed microspheres are stretched into the ellipsoid shapes, it is possible to create a stable 2D colloidal glass. The PIs propose to carry out temperature dependent experiments on the glassy dynamics to critically examine the origin of the two-step transition found in 2D colloidal glasses. The proposed experiments can be used to distinguish various competing scenarios of the glass transition in 2D, with special focus on a recently proposed Kramers-type kinetics model. Critical experiments are also planned to address the issue of long wavelength shear rigidity which was implied by two recent studies on polydispersed colloidal glasses. These studies will shed new light into the outstanding issue of the glass transition, at least in 2D.
The second direction of exploration is to investigate edge dislocation dynamics in 2D colloidal lattices, also by experiments and theoretical modeling. Edge dislocations are crucial for understanding the mechanics of solids. It has proposed theoretically that an array of edge dislocations formed along a lowangle grain boundary (LAGB) can have a novel melting transition of its own, while deeply connected to the 2D melting problem. The PIs propose to create a colloidal version of the LAGB system such that one can study the statistical mechanics of the edge dislocations. In addition to experimentally testing the theoretical predictions of 1D melting of dislocation arrays, the PIs also plan to investigate the interactions between a 1D LAGB dislocation lattice and impurities particles to observe possible a 1D glassy state.
Ya Chen, Xinlan Tan, Huaguang Wang, Zexin Zhang, J. M. Kosterlitz, and Xinsheng Sean Ling, 2D Colloidal Crystals with Anisotropic Impurities, Phys. Rev. Lett. 127, 018004 – Published 2 July 2021.
Xinlan Tan, Ya Chen, Huaguang Wang, Zexin Zhang, and Xinsheng Sean Ling, 2D isotropic–nematic transition in colloidal suspensions of ellipsoids, Soft Matter, 17, 6001–6005 (2021).
Sung-Cheol Kim, Lichao Yu, Alexandros Pertsinidis, and Xinsheng Sean Ling,. Dynamical processes of interstitial diffusion in a two-dimensional colloidal crystal. PNAS. 2020 https://www.pnas.org/content/117/24/13220
Xinzhuo Liu, Huaguang Wang, Zexin Zhang, J.M. Kosterlitz, and X.S. Ling, “Nature of the glass transition in 2D colloidal suspensions of short rods”, New J. Phys. 22, 103066 (2020).
Alexandros Pertsinidis and X.S. Ling, "Statics and Dynamics of 2D Colloidal Crystals in a Random Pinning Potential", Physical Review Letters, 100, 028303 (2008).
A. Pertsinidis and X.S. Ling, "Equilibrium Configurations and Energetics of Point Defects in Two-Dimensional Colloidal Crystals", Physical Review Letters, 87, 098303 (2001).
A. Pertsinidis and X.S. Ling, "Diffusion of Point Defects in Two-Dimensional Colloidal Crystals", Nature, 413, 147 (2001).
Vortex Physics: peak effect and Bragg glass phase
Vortex lines in type-II superconductors form a condensed matter system with long-range order in competition with random potentials. In 1991, while being a graduate student with Prof. J.I. Budnick, I discovered the so-called "peak effect" in high-Tc superconductors. This peak effect was ultimately proven, first by our group at Brown (S.R. Park, et al., using smal angle neutron scattering in collaboration with J. Lynn at NIST), to be a genuine phase transition between a topologically ordered "Bragg glass" and a disordered phase. The topologically ordered 3D Bragg glass phase is reminiscent of the QLRO discovered by J.M. Kosterlitz and D.J. Thouless in 2D X-Y model and Duncan Haldane in 1D quantum spin chain models, it was long thought not possible due to a well-known and powerful Larkin-Imry-Ma theorem which states that any system, below 4D, with broken continuous symmetry cannot have LRO with any amount of random fields. It turns out that, like the Mermin-Wagner theorem for 2D X-Y, the Larkin-Imry-Ma theorem cannot be applied simply to the destruction of the topological order in a 3D vortex-line lattice.
I have a renewed interested in the vortex phase diagram, this time in the newly discovered topological superconductors.
N. D. Daniilidis, S. R. Park, I. K. Dimitrov, J. W. Lynn, X. S. Ling, "Emergence of Quasi-Long-Range Order below the Bragg Glass Transition", Physical Review Letters, 99, 147007 (2007).
I. K. Dimitrov, N. D. Daniilidis, C. Elbaum, J. W. Lynn, X. S. Ling, “Peak Effect in Polycrystalline Vortex Matter” Physical Review Letters, 99, 047001 (2007).
N. D. Daniilidis, I. K. Dimitrov, V. F. Mitrovic, C. Elbaum, X. S. Ling, “Magnetocaloric Studies of the Peak Effect in Nb”, Physical Review B 75, 174519 (2007).
S.R. Park, S.M. Choi, D.C. Dender, J.W. Lynn, and X.S. Ling, “Fate of the Peak Effect in a Type-II Superconductor: Multicriticality of the Bragg-Glass Transition", Physical Review Letters, 91, 167003 (2003).
X.S. Ling, S.R. Park, B.A. McClain, S.M. Choi, D.C. Dender, and J.W. Lynn, "Superheating and Supercooling of Vortex Matter in a Nb Single Crystal: Direct Evidence for a Phase Transition at the Peak Effect from Neutron Diffraction", Physical Review Letters, 86, 712 (2001).
J. Shi, X. S. Ling, R. Liang, D.A. Bonn, W.N. Hardy, "Giant Peak Effect Observed in an Ultra-pure YBa2Cu3O7 Crystal", Physical Review, B Rapid Communications, 60, R12593 (1999).
X.S. Ling, J.E. Berger, and D. E. Prober, "Nature of Vortex Lattice Disordering at the Onset of the Peak Effect", Physical Review, B Rapid Communications, 57, R3249 (1998).
X.S. Ling, J.I. Budnick, and B.W. Veal, "Peak Effect and Its Disappearance in Superconducting YBCO Crystals", Physica C, 282, 2191 (1997).
C. Tang, X.S. Ling, S. Bhattacharya, and P.M. Chaikin, "Peak Effect in Superconductors: Melting of Larkin Domains", Europhysics Letters, 35, 597 (1996).
X. S. Ling, "Flux dynamics in high-temperature superconductors", (Ph.D. thesis, University of Connecticut, May 1992), reprints available from UMI Microfilm.
X.S. Ling and J.I. Budnick, "AC Magnetic Susceptibility Studies of Type-II Superconductors: Vortex Dynamics", in Magnetic Susceptibility of Superconductors and Other Spin Systems, Edited by R.A. Hein, T.L. Francavilla, & D.H. Liebenberg, (Plenum, New York, 1991), p.377.
Vortex Physics: finite-size effect of a vortex glass phase
NbTi wires are dirty type-II superconductors. In a strong magnetic field, the vortex phase is that of a vortex glass, a structurally disordered vortex lines phase with divergent activation barrier for vortex creep. The Fisher-Fisher-Huse theory of vortex glass implied that for a finite-size system, there should be ohmic resistance determined by the sample size, which indeed was observed in our experiment. (I was a postdoc under Professor D.E. Prober at Yale University where this work was finished.)
X.S. Ling, J.D. McCambridge, N.D. Rizzo, J.W. Sleight, D.E. Prober, L.R. Motowidlo, and B.A. Zeitlin, Physical Review Letters, 74, 805 (1995), “Fluctuation Effects on a Strongly Pinned Vortex Lattice in a Thin Type-II Superconducting Wire”.
X.S. Ling, J.D. McCambridge, N.D. Rizzo, J.W. Sleight, D.E. Prober, L.R. Motowidlo, and B.A. Zeitlin, Physica B, 194-196, 1867 (1994), “Flux Dynamics in Submicron Superconducting NbTi Wires”.
Vortex Physics: 2D superconducting periodic wire networks
A 2D periodic Nb wire network in a perpendicular magnetic field is a realization of frustrated X-Y models:(1) At f=1/2, the system has both broken U(1) and Z2 symmetries, as such we expect both Kosterlitz-Thouless and Ising transitions. The question was whether the two transitions occur at the same temperature. My experiment at NEC (with S. Bhattacharya and P.M. Chaikin) showed that the two occur at the same temperature. (2) At f=2/5, the theory predicted a first-order transition; At f=0.618, the theory predicted no transition. My experiment showed that in both cases the system exhibits the features of a continuous transition.
I'm currently looking for ways to re-launch this project.
X.S. Ling, H.J. Lezec, M.J. Higgins, J.S. Tsai, J. Fujita, Y. Nakamura, Chao Tang, P.M. Chaikin, and S. Bhattacharya, Physical Review Letters, 76, 2989 (1996), “Nature of Phase Transitions of Superconducting Wire Networks in a Magnetic Field".
Vortex Physics: vortex avalanches in the Bean critical state
NbTi tube provides an excellent system for studying vortex avalanches in the Bean critical state. The question was whether such a system exhibits the "self-organized criticality" proposed in the famous Bak-Tang-Wiesenfeld sandpile model since we can make the system thermally stable and vortices are known to have no inertia effects (the real sand particles do). Stuart Field (at Michigan at the time, now at Colorado State) and I (at Yale at the time) joined the forces in making the experiment successful (I made the NbTi tube sample at Yale and his student Jeff Witt built the amplifier, the measurements were done at Michigan).
S. Field, J. Witt, F. Nori, and X.S. Ling, Physical Review Letters, 74, 1206 (1995), “Superconducting Vortex Avalanches”.
Nanopore DNA Sequencing: kinetic proofreading
After a sabbatical leave at Delft in the 02-03 academic year, I ventured into the field of nanopore DNA sequencing. I was intrigued by the proposal by John Kasianowiz and coworkers that one may use electrical current variations of a nanopore during DNA translocation (linear motion) to sequence a DNA. After more than a decade spent in studying this problem, I came to the realization that in order for us to develop a DNA sequencing technology without polymerase, we need to develop a nanopore device capable of two key functions of a DNA polymerase: suppression of diffusion and base discrimination beyond equilibrium thermodynamics, i.e. kinetic proofreading. Currently I'm pausing this line of research at Brown.
X. S. Ling, “DNA Sequencing using Nanopores and Kinetic Proofreading”, Quantitative Biology 2020, 8(3): 187–194 (2020).
Deying Xia, Chuong Huynh, Shawn McVey, Aaron Kobler, Lewis Stern, Zhishan Yuan and Xinsheng Sean Ling, “Rapid fabrication of solid-state nanopores with high reproducibility over a large area using a helium ion microscope”, Nanoscale, 10, 5198-5204 (2018).
Daniel Y. Ling and Xinsheng Sean Ling, "On the distribution of DNA translocation times in solid-state nanopores: an analysis using Schrödinger's first-passage-time theory", J. Phys.: Cond. Matt. 25, 375102 (2013).
Xinsheng Sean Ling, "METHODS OF SEQUENCING NUCLEIC ACIDS USING NANOPORES AND ACTIVE KINETIC PROOFREADING", World Intellectual Property Organization, WO2013/119784 A1 (http://patentscope.wipo.int/search/en/WO2013119784)
Xinsheng Sean Ling, "Solid-State Nanopores: Methods of Fabrication and Integration, and Feasibility Issues in DNA Sequencing", p.177 in S.M. Iqbal and R. Bashir (eds.), Nanopores: Sensing and Fundamental Biological Interactions, DOI 10.1007/978-1-4419-8252-0_8, Springer Science+Business Media, LLC 2011
Venkat S.K. Balagurusamy, Paul Weinger, & Xinsheng Sean Ling, "Detection of DNA hybridizations using solid-state nanopores", Nanotechnology 21, 335102 (2010).
Hongbo Peng and X.S. Ling, "Reverse DNA translocation through a solid-state nanopore by magnetic tweezers", Nanotechnology, 20, 185101(2009).
Sang R. Park, H. Peng, and X.S. Ling, "Fabrication of Nanopores in Silicon Chips Using Feedback Chemical Etching", SMALL 3, 116 (2007).
Shanshan Wu, Sang R. Park, and X.S. Ling, "Lithography-Free Formation of Nanopores in Plastic Membranes using Laser Heating", Nano Letters 6, 2571(2006).
A.J. Storm, J.H. Chen, X.S. Ling, H. Zandbergen, and C. Dekker, "Electron-Beam-Induced Deformations of SiO2 Nanostructures", Journal of Applied Physics 98, 014307 (2005).
Arnold J. Storm, Jiang Hua Chen, X.S. Ling, H. Zandbergen, and C. Dekker, "Fabrication of Solid-State Nanopores with Single Nanometer Precision", Nature Materials, 2, 537 (2003).
NSF-DMR:Condensed Matter Physics"Thermally Activated Dynamics in 2D Colloidal Glasses and Crystals" (August 1, 2022-July 31, 2025), $651,108
NSF-DMR:Condensed Matter Physics"Statics and Dynamics of 1D and 2D Colloidal Lattices with Random Pinning" (July 15, 2010-July 14, 2013), $360,000.
NIH National Human Genome Research Institute: R21 "Hybridization-Assisted Nanopore DNA Sequencing" (Aug.1, 2007-July 31, 2011), $820,000.
DOE Basic Energy Sciences:"Neutron scattering studies of vortex matter" (Aug.15, 2007-July 31, 2011), $600,685.
National Science Foundation Grant, "NIRT: DNA Sequencing and Translocation Studies using Electrically-Addressable Nanopore Arrays", (07/04-06/08) $1,550,000 (Brown $900,000, Harvard $650,000) (PI: Ling (Brown), Co-PIs: A. Meller (Harvard), D.R. Nelson (Harvard), and J. Oliver (Brown)).
National Science Foundation Grant, DMR: "Investigation of Vortex Matter Phase Transitions in Type-II Superconductors using Small Angle Neutron Scattering and Complementary Techniques", (07/04-06/07), $330,000.
National Science Foundation Grant, "NER: DNA Sequence Detection using Novel Solid-State and Soft Nanopores", (09/03-08/04), $100,000.
National Science Foundation Grant, MRI: "Acquisition of a Scanning Probe Microscope for Studies of Biomolecules and Nanoscale Materials and Devices", (07/03-06/04), $133,000 (PI: J. Tang, co-PIs: Ling, Valles and Xiao).
Salomon Faculty Research Award for research in nanopore biophysics (02-03).
National Science Foundation Grant, MRI: "Acquisition of a Workhorse Electron Beam Lithography System for Microstructured Materials and Devices Research", (07/01-06/02), $151,200.
National Science Foundation Grant, DMR: "Novel Studies of Vortex Matter and Peak Effect using In-Situ Neutron Scattering and AC Magnetization", (07/01-06/04), $277,000.
National Science Foundation Grant, SGER: "In-Situ Measurements of Small Angle Neutron Scattering and AC Magnetic Susceptibility of Vortex Matter", (07/00-06/01), $59,949.
Salomon Faculty Research Award for research in vortex matter (00-01).
National Science Foundation Grant, DMR: "Novel Studies of Two-Dimensional Colloidal Crystals in Pinning Potentials", (07/98-06/02), $240,000.
Petroleum Research Fund Grant, "Novel Studies of Two-Dimensional Colloidal Crystals in Pinning Potentials", (07/98-06/99), $35,000.
Salomon Faculty Research Award for research in 2D colloidal crystals (98-99).
Research Corporation, "Experimental Studies of Topological Defects and Order in 2D Colloidal Crystals", (07/98-06/00), $35,000.
Alfred P. Sloan Fellowship, (1998) $35,000.
| Year | Degree | Institution |
|---|---|---|
| 1992 | PhD | University of Connecticut |
| 1987 | MS | Chinese Academy of Sciences |
| 1984 | BS | Wuhan University |
| Visiting Scientist | NEC , NEC Research Institute | 1994-1996 | Princeton, New Jersey, United States |
| Postdoctoral Research Associate | Yale Universty, Applied Physics | 1992-1994 | New Haven, Connecticut, USA |
China Thousand-Talent Plan (千人计划) Visiting Professor at Southeast University (Nanjing) (2015.1.1-2017.12.31)
Fellow, American Physical Society (2005)
Visiting Professorship at TU Delft (2002-03), FOM (Dutch Science Foundation)
Guggenheim Fellow (2002)
Alfred P. Sloan Fellow (1998)
Research Innovation Awards, Research Corporation (1998)
| Name | Title |
|---|---|
| Kosterlitz, J Michael | Harrison E. Farnsworth Professor of Physics |
| Pelcovits, Robert | Professor of Physics |
Institute for Advanced Study at Soochow University, Suzhou, China (Founding Director 2018-2019, Visiting Professor 2018-2021)
American Physical Society (Fellow, Life Member)
Overseas Chinese Physicists Association (Life Member)
Physics 0030 lectures, Fall 2022
Physics 0040/0060/0160 labs, Spring 2023
Physics 0160 Introduction to Relativity, Waves and Quantum Physics, Spring 2023
| PHYS 0030 - Basic Physics A |
| PHYS 0040 - Basic Physics B |
| PHYS 0050 - Foundations of Mechanics |
| PHYS 0060 - Foundations of Electromagnetism and Modern Physics |
| PHYS 0070 - Analytical Mechanics |
| PHYS 0160 - Introduction to Relativity, Waves and Quantum Physics |
| PHYS 0790 - Physics of Matter |
| PHYS 1560 - Modern Physics Laboratory |
| PHYS 2050 - Quantum Mechanics |
