Kathie E. Newman

Professor and Director of Graduate Studies
Theoretical Condensed Matter Physics

The research projects and interests in Prof. Newman's group center on statistical mechanics of semiconductor systems. Many aspects of the problem are studied, including phase diagrams, microscopic structure of alloys and stability analysis. Particularly of interest is the interplay between elastic interactions and the phenomena of ordering or phase separation in lattice-mismatched alloys.

The group's studies extend to semiconductors in a variety of forms, including ternary and quaternary alloys and compounds. Recent work has included Monte Carlo simulations of phase separation in strained quaternary alloys.

New work in the group includes applications of these techniques to more exotic materials, such as ice.

Selected Publications:

"Commensurate and Incommensurate Phases of Epitaxial Semiconductor Antiferromagnets with ‘Built-In' Strain," R.J. Cohen and K.E. Newman, Phys. Rev. B46, 14282 (1992).

"Atomic Rearrangement of Interfaces in ZnTe/CdSe Super-lattices," K.M. Kemner, B.A. Bunker, H. Luo, N. Samarth, J.K. Furdyna, M.R. Weidmann, and K.E. Newman, Phys. Rev. B50, 4327 (1994).

"Effects of Site Correlations on the Local Structure of Strain-Relaxed Semiconductor Alloys," M.R. Weidmann and K.E. Newman, Phys. Rev. B51, 4962-4981 (1995).

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