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Unusual nodal behaviors of the superconducting gap in the iron-based superconductor Ba(FeRu)As: Effects of spin-orbit coupling
L. Liu, K. Okazaki, T. Yoshida +22
We have investigated the superconducting gap of optimally doped Ba(FeRu)As by angle-resolved photoemission spectroscopy (APRES) using bulk-sensitive 7 eV…
Fate of Majorana modes in / superlattices -a test bed for reduction of topological classification-
Tsuneya Yoshida, Akito Daido, Youichi Yanase +1
In this paper, we propose superlattice systems as a test bed for the reduction of topological classification in free fermions. We find that th…
Reduction of classification of a two-dimensional weak topological insulator - real-space DMFT study -
Tsuneya Yoshida, Norio Kawakami
One of the remarkable interaction effects on topological insulators is the reduction of topological classification in free-fermion systems. We address this issue in a bilayer honey…
Visualizing a Bosonic Symmetry Protected Topological Phase in an Interacting Fermion Model
Han-Qing Wu, Yuan-Yao He, Yi-Zhuang You +5
Symmetry protected topological (SPT) phases in free fermion and interacting bosonic systems have been classified, but the physical phenomena of interacting fermionic SPT phases hav…
Topological edge Mott insulating state in two dimensions at finite temperatures -bulk and edge analysis-
Tsuneya Yoshida, Norio Kawakami
We study a bilayer Kane-Mele-Hubbard model with lattice distortion and inter-layer spin exchange interaction under cylinder geometry. Our analysis based on real-space dynamical mea…