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2012--Ward-D-K-Zhou-X-W-Wong-B-M-et-al--Cd-Te-Zn

Citation: D.K. Ward, X.W. Zhou, B.M. Wong, F.P. Doty, and J.A. Zimmerman (2012), "Analytical bond-order potential for the Cd-Zn-Te ternary system", Physical Review B, 86(24), . DOI: 10.1103/physrevb.86.245203.
Abstract: Cd-Zn-Te ternary alloyed semiconductor compounds are key materials in radiation detection and photovoltaic applications. Currently, crystalline defects such as dislocations limit the performance of these materials. Atomistic simulations are a powerful method for exploring crystalline defects at a resolution unattainable by experimental techniques. To enable accurate atomistic simulations of defects in the Cd-Zn-Te systems, we develop a full Cd-Zn-Te ternary bond-order potential. This Cd-Zn-Te potential has numerous unique advantages over other potential formulations: (1) It is analytically derived from quantum mechanical theories and is therefore more likely to be transferable to environments that are not explicitly tested. (2) A variety of elemental and compound configurations (with coordination varying from 1 to 12) including small clusters, bulk lattices, defects, and surfaces are explicitly considered during parameterization. As a result, the potential captures structural and property trends close to those seen in experiments and quantum mechanical calculations and provides a good description of melting temperature, defect characteristics, and surface reconstructions. (3) Most importantly, this potential is validated to correctly predict the crystalline growth of the ground-state structures for Cd, Zn, Te elements as well as CdTe, ZnTe, and Cd1−xZnxTe compounds during highly challenging molecular dynamics vapor deposition simulations.

Notes: This is the first analytical BOP Cd-Zn-Te parameterization. Notes from Dr. Zhou "This was fitted to a theoretical CdTe lattice constant that is significantly larger than the experimental one. The later version (2013--Ward-D-K-Zhou-X-Wong-B-M-Doty-F-P--Cd-Te-Zn) was fitted to the experimental lattice constant."

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Notes: This file was taken from the August 22, 2018 LAMMPS distribution and listed as having been created by X.W. Zhou (Sandia)
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Date Created: October 5, 2010 | Last updated: April 26, 2019