PEOPLE · FACULTY

FACULTY

Yonathan Shapir
Professor
Ph.D. 1981, University of Tel Aviv (Israel)

467 B&L
(585)275-7291
ysha@pas.rochester.edu

Website

http://spider.pas.rochester.edu/mainFrame/people/pages/Shapir.html

Research

Research Topics: Critical phenomena in ordered and disordered systems such as spin-glasses and random-field systems, classical and quantum transport in dirty metals and the metal-insulator transition, statistical properties of different polymer configurations, fractal properties of percolation and other clusters, kinetic models of growth and aggregation

Growth of electrodeposited surfaces. With the experimental group pf Prof. Jacob Jorne, we are looking at the scaling properties of surfaces formed in electrochemical deposition and dissolution. We investigate properties such as the surface roughness and its maximal height. Presently we are particularly interested in the following systems: Cyclical growth – In which deposition and dissolution are applied cyclically. The main motivation is to figure out the growth of the metal surface deposited on the electrode of a rechargeable battery. This is intended to yield an accelerated testing method based on the scaling analysis.
A recent publication may be found at:
http://ojps.aip.org/journal_cgi/getabs?KEY=PRLTAO&cvips=P RLTAO000084000014003029000001&gifs=Yes

Deposition in narrow trenches. Copper deposition in narrow trenches is the future interconnect technology in microelectronics. We are therefore looking at the effect the roughness of the surface will play and how to overcome it to achieve a maximally uniform deposition.

Critical Phenomena in Porous Media. Together with Prof. Eldred Chimowitz's group we are investigating analytically and numerically phase liquid phase transitions taking place in porous media. The motivation is to try to optimize present applications of porous media, e.g. separation, by adjusting the system to be near criticality. Modern scaling approach, developed for the study of critical phenomena in general in random systems in particular, are applied to investigate how different critical properties are affected by the porous media.