TY  - CONF
AU  - RAI, VENUS
AU  - Nandi, Shibabrata
AU  - JANA, SUBHADIP
AU  - PERßON, JÖRG
AU  - BRÜCKEL, THOMAS
TI  - Magnetic and Anomalous Transport Properties of Hexagonal -Mn3+δGe
M1  - FZJ-2020-01040
PY  - 2020
AB  - Topological quantum materials have attracted enormous attention since their discovery due to the observed anomalous transport properties, which originate from the non-zero Berry curvature. Mn3+δGe has gained special attention because of its large anomalous transport effects that persist starting from Néel temperature (365 K) down to 2 K. Hexagonal - Mn3+δGe stabilizes in the range of δ = 0.25 to 0.55. We have observed larger anomalous Hall effect with very small hysteresis (<200 Oe) for high Mn concentration in Mn3+δGe. To establish the claim for the existence of Weyl points in Mn3+δGe, transverse and longitudinal magneto-resistance (MR) was also performed with field and current applied along several combinations of x, y, z crystallographic axes. Negative MR is observed in some cases even when magnetic field (B) is perpendicular to the current (I) direction. However, in case of I∥B∥x, negative MR is observed with different slopes below and above 2 T. Angle dependent measurement (between I and B) shows that the negative MR with higher slope (observed below 2 T) is possibly originating due to the chiral anomaly.
T2  - DPG-Frühjahrstagung der Sektion Kondensierte Materie (SKM)
CY  - 15 Mar 2020 - 20 Mar 2020, Technischen Universität Dresden, Campus Südvorstadt (Germany)
Y2  - 15 Mar 2020 - 20 Mar 2020
M2  - Technischen Universität Dresden, Campus Südvorstadt, Germany
LB  - PUB:(DE-HGF)24
UR  - https://juser.fz-juelich.de/record/873838
ER  -