Two-dimensional transport and strong spin-orbit interaction in SrMnSb2
Journal
Chinese Physics B
Journal Volume
27
Journal Issue
1
Pages
017504-1 - 017504-6
Date Issued
2018
Author(s)
Ling, J.
Liu, Y.
Jin, Z.
Huang, S.
Wang, W.
Zhang, C.
Yuan, X.
Liu, S.
Zhang, E.
Huang, C.
Sankar, R.
Xia, Z.
Xiu, F.
Abstract
We have carried out magneto-transport measurements for single crystal SrMnSb2. Clear Shubnikov-de Haas oscillations were resolved at relatively low magnetic field around 4 T, revealing a quasi-2D Fermi surface. We observed a development of quantized plateaus in Hall resistance (Rxy) at high pulsed fields up to 60 T. Due to the strong 2D confinement and layered properties of the samples, we interpreted the observation as bulk quantum Hall effect that is contributed by the parallel 2D conduction channels. Moreover, the spin degeneracy was lifted leading to Landau level splitting. The presence of anisotropic g factor and the formation of the oscillation beating pattern reveal a strong spin-orbit interaction in the SrMnSb2 system.
Publisher
Institute of Physics Publishing
Type
journal article