Dr. Edward M. Nadgorny

The properties of dislocations in various materials (normal and superconducting metals, dielectrics, intermetallics, semiconductors, magnetic materials) and their influence on the physical properties of the materials are of main research interests. Dislocations have been studied, both experimentally and computationally, to establish fundamental relationship between their dynamic properties and mechanical properties(plasic deformation, flow and fracture), electrical, optical, and etching properties of the materials under investigation.

More specifically, the current studies are in the following areas:

1. Fundamental physical processes for nanoscale engineering involving dislocations:
(A) Experimental and theoretical studies of deformation-induced surface morphology and spatial intermittency of plastic flow underlying such intermittency (dislocation "avalanches");
(B) Experimental and theoretical studies of size-dependent deformation response of materials in micron-scale single crystals (in the size range from 30 - 1 micron).
2. Dislocation dynamics in materials.

The finding are important for nanotechnology and micron-sized devices, such as MEMS.