H
Hsiang-Hsi Kung
Researcher at University of British Columbia
Publications - 30
Citations - 462
Hsiang-Hsi Kung is an academic researcher from University of British Columbia. The author has contributed to research in topics: Electron & Topological insulator. The author has an hindex of 10, co-authored 24 publications receiving 350 citations. Previous affiliations of Hsiang-Hsi Kung include Academia Sinica & Rutgers University.
Papers
More filters
Journal ArticleDOI
Chirality density wave of the “hidden order” phase in URu2Si2
Hsiang-Hsi Kung,Ryan Baumbach,Eric D. Bauer,V. K. Thorsmølle,W.-L. Zhang,Kristjan Haule,J. A. Mydosh,G. Blumberg +7 more
TL;DR: It is determined that the HO parameter breaks local vertical and diagonal reflection symmetries at the uranium sites, resulting in crystal field states with distinct chiral properties, which order to a commensurate chirality density wave ground state.
Journal ArticleDOI
Nonstoichiometric doping and Bi antisite defect in single crystal Bi2Se3
Fei-Ting Huang,Ming-Wen Chu,Hsiang-Hsi Kung,Wei-Li Lee,Raman Sankar,Sz-Chian Liou,Kai-Hsin Wu,Kai-Hsin Wu,Y. K. Kuo,Fangcheng Chou +9 more
TL;DR: In this article, the defect types of the BiSe antisite and partial Bi2-layer intercalation are identified through combined studies of direct atomic-scale imaging with scanning transmission electron microscopy in conjunction with energy-dispersive x-ray spectroscopy, xray diffraction and Hall effect measurements.
Journal ArticleDOI
Surface vibrational modes of the topological insulator Bi 2 Se 3 observed by Raman spectroscopy
Hsiang-Hsi Kung,Maryam Salehi,Ibrahim Boulares,Alexander F. Kemper,Nikesh Koirala,Matthew Brahlek,P. Lošťák,Ctirad Uher,Roberto Merlin,Xiangyue Wang,S-W. Cheong,S. Oh,Girsh Blumberg,Girsh Blumberg +13 more
TL;DR: In this article, a polarization resolved Raman scattering study of surface vibration modes in the topological insulator was presented, and it was concluded that the appearance of these modes is due to $c$-axis lattice distortion and van der Waals gap expansion near the surface.
Journal ArticleDOI
Chiral Spin Mode on the Surface of a Topological Insulator.
Hsiang-Hsi Kung,Saurabh Maiti,Xueyun Wang,Sang-Wook Cheong,Dmitrii L. Maslov,Girsh Blumberg,Girsh Blumberg +6 more
TL;DR: Using polarization-resolved resonant Raman spectroscopy, a sharp peak at 150 meV is identified as the transverse collective spin mode of surface Dirac fermions, analogous to a spin wave in a partially polarized Fermi liquid, with spin-orbit coupling playing the role of an effective magnetic field.
Journal ArticleDOI
Observation of chiral surface excitons in a topological insulator Bi2Se3
Hsiang-Hsi Kung,Hsiang-Hsi Kung,Adamya Goyal,Dmitrii L. Maslov,Xueyun Wang,A. Lee,Alexander F. Kemper,Sang-Wook Cheong,Girsh Blumberg +8 more
TL;DR: In this paper, the authors studied the optical orientation of chiral excitons formed by the Coulomb attraction between electrons and holes residing on the surface of an archetypical 3D topological insulator.