32 citations · 44 across the 4 of their papers we have counts for
6 papers
A hybrid approach to basis set independent Poisson solver for an arbitrary charge distribution
Po-Hao Chang, Zachary Buschmann, Rajendra R. Zope
We review two common numerical schemes for Coulomb potential evaluation that differ only in their radial part of the solutions in the spherical harmonic expansion (SHE). One is bas…
Study of Self-Interaction Errors in Density Functional Calculations of Magnetic Exchange Coupling Constants Using Three Self-Interaction Correction Methods
Prakash Mishra, Yoh Yamamoto, Po-Hao Chang +4
We examine the role of self-interaction errors (SIE) removal on the evaluation of magnetic exchange coupling constants. In particular we analyze the effect of scaling down the self…
Spirals and skyrmions in antiferromagnetic triangular lattices
Wuzhang Fang, Aldo Raeliarijaona, Po-Hao Chang +2
We study realizations of spirals and skyrmions in two-dimensional antiferromagnets with a triangular lattice on an inversion-symmetry-breaking substrate. As a possible material rea…
Fermi surface topology and non-trivial Berry phase in the flat-band semimetal PdPb
Mojammel A. Khan, Po-Hao Chang, Nirmal Ghimire +5
A study of the Fermi surface of the putative topological semimetal PdPb has been carried out using Shubnikov-de Haas (SdH) oscillations measured in fields of up to 60 T. Pd…
Microscopic Origin of Spin-Orbit Torque in Ferromagnetic Heterostructures: A First Principles Approach
Farzad Mahfouzi, Rahul Mishra, Po-Hao Chang +2
We present an {\it ab initio}-based theoretical framework which elucidates the origin of the spin-orbit torque (SOT) in Normal-Metal(NM)/Ferromagnet(FM) heterostructures. The SOT i…
Pressure-induced high temperature superconductivity in H3X (X=As, Se, Br, Sb, Te and I)
P. -H. Chang, S. Silayi, D. A. Papaconstantopoulos +1
The discovery of high critical temperature T_{c} superconductivity in highly compressed H_{3}S has opened up the question of searching for strong electron-phonon coupling in the hy…