Direct evidence of hidden local spin polarization in a centrosymmetric superconductor LaO0.55 F0.45BiS2

• Published in: Nature communications Vol. 8; no. 1; pp. 1 - 7
• Main Authors: Wu, Shi-Long, Sumida, Kazuki, Miyamoto, Koji, Taguchi, Kazuaki, Yoshikawa, Tomoki, Kimura, Akio, Ueda, Yoshifumi, Arita, Masashi, Nagao, Masanori, Watauchi, Satoshi, Tanaka, Isao, Okuda, Taichi
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 04.12.2017; Nature Publishing Group; Nature Portfolio
• Subjects: 639/766/119/1001; 639/766/119/1003; 639/766/119/2792; 639/766/119/995; Asymmetry; Band structure of solids; Coexistence; Conduction; Conduction bands; Electron spin; Electrons; Fabrication; Field effect transistors; Humanities and Social Sciences; multidisciplinary; Photoelectric emission; Polarization; Polarization (spin alignment); Science; Science (multidisciplinary); Spectroscopy; Superconductivity; Valence band

Conventional Rashba spin polarization is caused by the combination of strong spin–orbit interaction and spatial inversion asymmetry. However, Rashba–Dresselhaus-type spin-split states are predicted in the centrosymmetric LaOBiS 2 system by recent theory, which stem from the local inversion asymmetry...