Negative thermal Hall conductance in a two-dimer Shastry-Sutherland model with a π-flux Dirac triplon

• المؤلفون الرئيسيون: Sun, Hao, Sengupta, Pinaki, Nam, Donguk, Yang, Bo
• مؤلفون آخرون: School of Electrical and Electronic Engineering
• التنسيق: مقال
• اللغة: English
• منشور في: 2021
• الموضوعات: Science::Physics; Bosons; Copper Compounds
• الوصول للمادة أونلاين: https://hdl.handle.net/10356/148837
• المؤسسة: Nanyang Technological University

We introduce an effective two-dimer tight-binding model for the family of Shastry-Sutherland models with geometrically tunable triplon excitations. The Rashba pseudospin-orbit coupling induced by the tilted external magnetic field leads to elementary excitations having nontrivial topological propert...