See-Chen Ying Professor of Physics

Professor Ying joined the Brown Physics Department in 1971. A graduate of the University of Hong Kong in 1964, he received the Ph.D. from Brown in 1968. Professor Ying has done postdoctoral research at Brown and at the University of California at San Diego. He was designated an Alfred P. Sloan Fellow in 1972, and received the U.S. Senior Scientist Award from the Humboldt Foundation in 1976. He has carried out research at the University of Paris, Imperial College of the University of London, K.F.A. Julich ,the Max Planck Institute in Stuttgart, INPE in Brazil and Helsinki Institute of Physics.

Brown Affiliations

scholarly work

"Anomalous Fast Dynamics of Adsorbate Overlayers near an Incommensurate Structural Transition” (with E. Granato, K.R. Elder, and T. Ala-Nissila) Physical Review Letters, 126102 (2013).

"Patterning of heteroepitaxial overlayers from nano to micron scales”( with K.R.Elder, G. Rossi, P. Kanerva. , F. Sanches, E. Granato, C.V.Achim, and T. Ala- Nissila) Physical Review Letters 108, 226102 (2012). 

"Diffusion in periodic potentials with path integral hyperdynamics” ( with T.Ikonen, M.D. Khandkar, L.Y. Chen and T. Ala-Nissila) Physical Review E 84, 026703 (2011).

"Non-Monotonic Velocity Dependence of Atomic Friction” ( with E. Granato) Tribology Letters 39, Issue 3, P. 229. (2010)

"Scaling exponents of Forced Polymer Translocation through a nano-pore” (with A. Battachyra, W.H. Morrison, K.F. Luo, T. Ala-Nissila , A. Milchev and K. Binder)  European  Physical Journal E 29, pp. 423-429 (2009)

"Sequence Dependence of DNA Translocation through a Nanopore", ( with Kaifu Luo, Tapio Ala-Nissila, and Aniket Bhattacharya) Phys. Rev. Lett. 100,058101(2008).

"Influence of Polymer-Pore Interactions on Translocation" ( with Kaifu Luo, Tapio Ala-Nissila, and Aniket Bhattacharya) Phys. Rev. Lett. 99,148102 (2007)

"Phase Diagram and Commensurate-Incommensurate Transition in the Phase Field Crystal model with an external pinning potential ( with C.C. Achim, M. Kartunnen, K.R. Elder, E. Granato and T. Ala-Nissila) Phys. Rev. E 74,021104 (2006)

"Strain Relief in Cu-Pd Heteroepitaxy" ( with Y.F. Lu, M. Przybylski, O.Trushin, W.H. Wang, E. Granato and T. Ala-Nissila) Phys. Rev. Lett. 94,146105(2005)

"Nonlinear sliding friction of adsorbed overlayers on disordered substrates " (with E. Granato ) Phys. Rev. B 69 (12): Art. No. 125403 (2004)

"Vibrational States of a H monolayer on the Pt(111) surface" (with S. Badescu, K. Jacobi, Y. Wang, K. Bedurftig, G. Ertl, P. Salo and T. Ala-Nissila) Phys. Rev. B 68,205401(2003)



research overview

I am interested in the development and application of analytical and computational methods to tackle problems with multiple time and length scales. Current research interests include the dynamics of DNA molecules in nanopores and nanochannels , as well as the generation of frictional force at the microscopic nanostructure level.

research statement

(a) "Dynamics of Biopolymers through nanochannels": This research effort was inspired by the experimental effort of Sean Ling and Derek Stein with potential applications on DNA sequencing and novel ways of energy production. I am maintaining close interactions with the experimental groups.
(b) "Strain Relaxation and Dynamics of Heteroepitaxial Nanostructures": The effort in this area focus on adsorption systems with lattice mismatch from the substrate. We study the various strain release mechanisms such as dislocation nucleation and self organized growth of island structures.
(c) " Nanotribology": This concerns the microscopic theory of both dynamic and static friction. We are investigating the microscopic origin of the frictional force acting on an AFM tip or an adsorbed layer moving on a substrate. In particular, we focus on how non-Markovian coupling to substrate excitations can lead to anomalous velocity dependence of sliding friction.
(d) Modeling of adsorption systems by "Phase Field Crystal" model. This model allows the study of structures such as heteroepitaxial systems at the atomic level with time resolution on the diffusion scale rather than the much shorter vibrational or electronic scale.

funded research