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Spin Excitations and Spin Wave Gap in the Ferromagnetic Weyl Semimetal CoSnS
Chang Liu, Jianlei Shen, Jiacheng Gao +12
We report a comprehensive neutron scattering study on the spin excitations in the magnetic Weyl semimetal CoSnS with quasi-two-dimensional structure. Both in-plane and…
Emerging chiral edge states from the confinement of a magnetic Weyl semimetal in CoSnS
Lukas Muechler, Enke Liu, Jacob Gayles +3
The quantum anomalous Hall effect (QAHE) and magnetic Weyl semimetals (WSMs) are topological states induced by intrinsic magnetic moments and spin-orbit coupling. Their similarity…
Large low-field positive magnetoresistance in nonmagnetic half-Heusler ScPtBi single crystal
Zhipeng Hou, Yue Wang, Enke Liu +3
High-quality nonmagnetic half-Heusler ScPtBi single crystals were synthesized by a Bi self-flux method. This compound was revealed to be a hole-dominated semimetal with a large low…
NMR Evidence for the Topologically Nontrivial Nature in a Family of Half-Heusler Compounds
Xiaoming Zhang, Zhipeng Hou, Yue Wang +7
Spin-orbit coupling (SOC) is expected to partly determine the topologically nontrivial electronic structure of heavy half-Heusler ternary compounds. However, to date, attempts to e…
Transition from semiconducting to metallic-like conducting and weak antilocalization effect in single crystals of LuPtSb
Zhipeng Hou, Yue Wang, Guizhou Xu +7
High quality half-Heusler single crystals of LuPtSb have been synthesized by a Pb flux method. The temperature dependent resistivity and Hall effects indicate that the LuPtSb cryst…
Weak Antilocalization Effect and Noncentrosymmetric Superconductivity in a Topologically Nontrivial Semimetal LuPdBi
Guizhou Xu, Wenhong Wang, Xiaoming Zhang +6
A large number of half-Heusler compounds have been recently proposed as three-dimensional (3D) topological insulators (TIs) with tunable physical properties.However, no transport m…
NMR evidence for enhanced orbital diamagnetism in topologically nontrivial half-Heusler semimetals
Chenglong Shi, Xuekui Xi, Zhipeng Hou +6
209Bi nuclear magnetic resonance (NMR) spectroscopy was employed to probe potential spin-orbit effects on orbital diamagnetism in YPtBi and YPdBi crystals. The observed opposite si…