22 citations · 22 across the 1 of their papers we have counts for
3 papers
cond-mat.str-el2016
Magnons in a two dimensional transverse field XXZ model
Satyaki Kar, Keola Wierschem, Pinaki Sengupta
The XXZ model on a square lattice in the presence of a transverse magnetic field is studied within the spin wave theory to investigate the resulting canted antiferromagnet. The sma…
cond-mat.str-el2016
Detection of symmetry-protected topological order in AKLT states by exact evaluation of the strange correlator
Keola Wierschem, K. S. D. Beach
The strange correlator [Phys. Rev. Lett. 112, 247202 (2014)] has been proposed as a measure of symmetry protected topological order in one- and two-dimensional systems. It takes th…
cond-mat.str-el2012★ 22 cited
Magnetic and nematic orderings in spin-1 antiferromagnets with single-ion anisotropy
Keola Wierschem, Yasuyuki Kato, Yusuke Nishida +2
We study a spin-one Heisenberg model with exchange interaction, J, uniaxial single-ion exchange anisotropy, D, and Zeeman coupling to a magnetic field, B, parallel to the symmetry…