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Unusual magneto-transport from Si-square nets in topological semimetal HfSiS
Nitesh Kumar, Kaustuv Manna, Yanpeng Qi +5
The class of topological semimetals comprises a large pool of compounds. Together they provide a wide platform to realize exotic quasiparticles for example Dirac, nodal line Dirac…
Chiral magnetoresistance in the Weyl semimetal NbP
Anna Corinna Niemann, Johannes Gooth, Shu-Chun Wu +10
NbP is a recently realized Weyl semimetal (WSM), hosting Weyl points through which conduction and valence bands cross linearly in the bulk and exotic Fermi arcs appear. However, th…
Multiple Dirac cones at the surface of the topological metal LaBi
Jayita Nayak, Shu-Chun Wu, Nitesh Kumar +8
The rare-earth monopnictide LaBi exhibits exotic magneto-transport properties including an extremely large and anisotropic magnetoresistance. Experimental evidence for topological…
Pressure tuning the Fermi-surface topology of the Weyl semimetal NbP
R. D. dos Reis, S. C. Wu, Y. Sun +6
We report on the pressure evolution of the Fermi surface topology of the Weyl semimetal NbP, probed by Shubnikov-de Haas oscillations in the magnetoresistance combined with ab-init…
Anomalous Hall effect in Weyl semimetal half Heusler compounds RPtBi (R = Gd and Nd)
Chandra Shekhar, Nitesh Kumar, V. Grinenko +17
Topological materials ranging from topological insulators to Weyl and Dirac semimetals form one of the most exciting current fields in condensed-matter research. Many half-Heusler…
Chiral Quasiparticles at the Fermi Surface of the Weyl Semimetal TaAs
Frank Arnold, Marcel Naumann, Shu-Chun Wu +6
Tantalum arsenide is a member of the non-centrosymmetric monopnictides, which are putative Weyl semimetals. In these materials, three-dimensional chiral massless quasiparticles, th…
Observation of Unusual Topological Surface States in Half-Heusler Compounds LnPtBi (Ln=Lu, Y)
Zhongkai Liu, Lexian Yang, Shu-Chun Wu +9
Topological quantum materials represent a new class of matter with both exotic physical phenomena and novel application potentials. Many Heusler compounds, which exhibit rich emerg…
Observation of pseudo two dimensional electron transport in the rock salt type topological semimetal LaBi
Nitesh Kumar, Chandra Shekhar, Shu-Chun Wu +5
Topological insulators are characterized by an inverted band structure in the bulk and metallic surface states on the surface. In LaBi, a semimetal with a band inversion equivalent…