Large spin-orbit coupling and helical spin textures in 2D heterostructure [Pb2BiS3[[AuTe2]]

L. Fang, J. Im, W. Degottardi, Y. Jia, A. Glatz, K. A. Matveev, W. K. Kwok, G. W. Crabtree, Mercouri G Kanatzidis

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7 Citations (Scopus)

Abstract

Two-dimensional heterostructures with strong spin-orbit coupling have direct relevance to topological quantum materials and potential applications in spin-orbitronics. In this work, we report on novel quantum phenomena in [Pb2 BiS3[[AuTe2[, a new 2D strong spin-orbit coupling heterostructure system. Transport measurements reveal the spin-related carrier scattering is at odds with the Abrikosov-Gorkov model due to strong spin-orbit coupling. This is consistent with our band structure calculations which reveal a large spin-orbit coupling gap of eso so = 0.21 eV. The band structure is also characterized by helical-like spin textures which are mainly induced by strong spin-orbit coupling and the inversion symmetry breaking in the heterostructure system.

Original languageEnglish
Article number35313
JournalScientific Reports
Volume6
DOIs
Publication statusPublished - Oct 12 2016

ASJC Scopus subject areas

  • General

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    Fang, L., Im, J., Degottardi, W., Jia, Y., Glatz, A., Matveev, K. A., Kwok, W. K., Crabtree, G. W., & Kanatzidis, M. G. (2016). Large spin-orbit coupling and helical spin textures in 2D heterostructure [Pb2BiS3[[AuTe2]]. Scientific Reports, 6, [35313]. https://doi.org/10.1038/srep35313