Phase diagram and magnetic excitations of anisotropic spin-one magnets

• Main Authors: Batista, Cristian D., Zhang, Zhifeng, Wierschem, Keola, Yap, Ian, Kato, Yasuyuki, Sengupta, Pinaki
• 其他作者: School of Physical and Mathematical Sciences
• 格式: Article
• 語言: English
• 出版: 2013
• 在線閱讀: https://hdl.handle.net/10356/96314; http://hdl.handle.net/10220/10223
• 機構: Nanyang Technological University

We use a generalized spin wave approach and large scale quantum Monte Carlo (QMC) simulations to study the quantum phase diagram and quasiparticle excitations of the S=1 Heisenberg model with an easy-plane single-ion anisotropy in dimensions d=2 and 3. We consider two alternative approximations for...