Quenching the Haldane gap in spin-1 Heisenberg antiferromagnets

• Main Authors: Wierschem, Keola, Sengupta, Pinaki
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Science::Physics::Descriptive and experimental mechanics
• Online Access: https://hdl.handle.net/10356/97407; http://hdl.handle.net/10220/20383
• Institution: Nanyang Technological University

We consider a quasi-one-dimensional system of spin-1 Heisenberg antiferromagnetic chains in two-dimensional and three-dimensional hypercubic lattices with interchain coupling J and uniaxial single-ion anisotropy D. Using large-scale numerical simulations, we map out the J−D phase diagram and investi...