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Anomalous Thermal Responses of Magnons and Phonons in Two-imensional Magnetic Layers
, Ph.D. Dissertation Sharif University of Technology ; Langari, Abdollah (Supervisor) ; Kargarian, Mehdi (Co-Supervisor)
Abstract
The concept of topology has underlined the discovery of new phases of matter since the eighties. Meanwhile the material growth, synthesis, and measurements have enabled us to examine the theoretical predictions. Amongst all, the anomalous thermal Hall and Nernst effects result from the non-trivial topological properties of lowenergy carriers. In this thesis our objection is to study some of these phases in two-dimensional magnetic layers such as honeycomb and Kagome lattices and their heterostructures.First, we consider heterostructures of a pyrochlore lattice along the [111] directions: triangular-kagome (TK), triangular-kagome-triangular (TKT), and kagometriangular-kagome (KTK) lattices....