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Sn-doped Bi1.1Sb0.9Te2S, a bulk topological insulator with ideal properties
S. K. Kushwaha, I. Pletikosić, T. Liang +11
A long-standing issue in topological insulator research has been to find a material that provides an ideal platform for characterizing topological surface states without interferen…
Correlation of Crystal Quality and Extreme Magnetoresistance of WTe
Mazhar N. Ali, Leslie Schoop, Jun Xiong +5
High quality single crystals of WTe were grown using a Te flux followed by a cleaning step involving self-vapor transport. The method is reproducible and yields consistently hi…
Signature of the chiral anomaly in a Dirac semimetal: a current plume steered by a magnetic field
Jun Xiong, Satya K. Kushwaha, Tian Liang +4
In this talk, we describe recent experimental progress in detecting the chiral anomaly in the Dirac semimetal NaBi in the presence of a magnetic field. The chiral anomaly, whic…
Anomalous conductivity tensor in the Dirac semimetal Na_3Bi
Jun Xiong, Satya Kushwaha, Jason Krizan +3
Na3Bi is a Dirac semimetal with protected nodes that may be sensitive to the breaking of time-reversal invariance in a magnetic field B. We report experiments which reveal that bot…
The thermal Hall effect of spin excitations in a Kagome magnet
Max Hirschberger, Robin Chisnell, Young S. Lee +1
At low temperatures, the thermal conductivity of spin excitations in a magnetic insulator can exceed that of phonons. However, because they are charge neutral, the spin waves are n…
Bulk crystal growth and electronic characterization of the 3D Dirac Semimetal Na3Bi
Satya K. Kushwaha, Jason W. Krizan, Benjamin E. Feldman +11
High quality hexagon plate-like Na3Bi crystals with large (001) plane surfaces were grown from a molten Na flux. The freshly cleaved crystals were analyzed by low temperature scann…