532 citations · 1.4k across the 33 of their papers we have counts for
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Exchange striction induced thermal Hall effect in van der Waals antiferromagnet MnPS
Heejun Yang, Gyungchoon Go, Jaena Park +2
The thermal Hall effect has emerged as an ideal probe for investigating topological phenomena of charge-neutral excitation. Notably, it reveals crucial aspects of spin-lattice coup…
Topological Magnon-Phonon Hybrid Excitations in Two-Dimensional Ferromagnets with Tunable Chern Numbers
Gyungchoon Go, Se Kwon Kim, Kyung-Jin Lee
We theoretically investigate magnon-phonon hybrid excitations in two-dimensional ferromagnets. The bulk bands of hybrid excitations, which are referred to as magnon-polarons, are a…
Arbitrary Chern number generation in the three-band model from momentum space
Soo-Yong Lee, Jin-Hong Park, Gyungchoon Go +1
A simple, general rule for generating a three-band model with arbitrary Chern numbers is given. The rule is based on the idea of monopole charge-changing unitary operations and can…
Soliton Defects in One-dimensional Topological Three-band Hamiltonian
Gyungchoon Go, Kyeong Tae Kang, Jung Hoon Han
Defect formation in the one-dimensional topological three-band model is examined within both lattice and continuum models. Classic results of Jackiw-Rebbi and Rice-Mele for the sol…
Three-Band Model for Quantum Hall and Spin Hall Effects
Gyungchoon Go, Jin-Hong Park, Jung Hoon Han
Topological properties of a certain class of spinless three-band Hamiltonians are shown to be summed up by the Skyrmion number in momentum space, analogous to the case of two-band…