Application of full-potential LSMS method in high entropy alloys

ORAL

Abstract

The ability to treat large number of atoms from first principles is highly desired for the investigation of alloy systems. Here we demonstrate our latest implementation of the full potential LSMS method (FP-LSMS) that can accurately calculate systems with thousands of atoms. The acceleration is achieved by a parallelization of the FFT part of the Poisson solver for the electrostatic potential. We employed the code to investigate the elastic properties of high entropy alloys, which are a class of interesting new structural materials. Moreover, to demonstrate the power of the FP scheme, we used FP-LSMS to calculate the Hellman-Feynman forces.

Presenters

  • Xianglin Liu

    Oak Ridge National Laboratory

Authors

  • Xianglin Liu

    Oak Ridge National Laboratory

  • Yang Wang

    Pittsburgh Super Computing, Carnegie Mellon University, Pittsburgh Supercomputing Center, CARNEGIE MELLON UNIVERSITY, Pittsburgh Supercomputing Center, Carnegie Mellon University

  • Markus Eisenbach

    National Center for Computational Sciences, Oak Ridge National Laboratory, Oak Ridge National Laboratory, National Center of Computational Sciences, Oak Ridge National Laboratory, Oak Ridge Natioinal Laboratory

  • George Malcolm Stocks

    Oak Ridge National Laboratory