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Gotlieb K, Lin CY, Serbyn M, et al. Revealing hidden spin-momentum locking in a high-temperature cuprate superconductor. Science. 2018;362(6420):1271-1275doi: 10.1126/science.aao0980.
Gotlieb, K., Lin, C. Y., Serbyn, M., Zhang, W., Smallwood, C. L., Jozwiak, C., Eisaki, H., Hussain, Z., Vishwanath, A., & Lanzara, A. (2018). Revealing hidden spin-momentum locking in a high-temperature cuprate superconductor. Science (New York, N.Y.), 362(6420), 1271-1275. https://doi.org/10.1126/science.aao0980
Gotlieb, Kenneth, et al. "Revealing hidden spin-momentum locking in a high-temperature cuprate superconductor." Science (New York, N.Y.) vol. 362,6420 (2018): 1271-1275. doi: https://doi.org/10.1126/science.aao0980
Gotlieb K, Lin CY, Serbyn M, Zhang W, Smallwood CL, Jozwiak C, Eisaki H, Hussain Z, Vishwanath A, Lanzara A. Revealing hidden spin-momentum locking in a high-temperature cuprate superconductor. Science. 2018 Dec 14;362(6420):1271-1275. doi: 10.1126/science.aao0980. Epub 2018 Dec 13. PMID: 30545882.
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Science. 2018 Dec 14;362(6420):1271-1275. doi: 10.1126/science.aao0980. Epub 2018 Dec 13.

Revealing hidden spin-momentum locking in a high-temperature cuprate superconductor.

Science (New York, N.Y.)

Kenneth Gotlieb, Chiu-Yun Lin, Maksym Serbyn, Wentao Zhang, Christopher L Smallwood, Christopher Jozwiak, Hiroshi Eisaki, Zahid Hussain, Ashvin Vishwanath, Alessandra Lanzara

Affiliations

  1. Graduate Group in Applied Science and Technology, University of California, Berkeley, CA 94720, USA.
  2. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
  3. Department of Physics, University of California, Berkeley, CA 94720, USA.
  4. Institute of Science and Technology Austria, 3400 Klosterneuburg, Austria.
  5. School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China.
  6. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
  7. Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan.
  8. Department of Physics, Harvard University, Cambridge, MA 02138, USA.
  9. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. [email protected].

PMID: 30545882 DOI: 10.1126/science.aao0980

Abstract

Cuprate superconductors have long been thought of as having strong electronic correlations but negligible spin-orbit coupling. Using spin- and angle-resolved photoemission spectroscopy, we discovered that one of the most studied cuprate superconductors, Bi2212, has a nontrivial spin texture with a spin-momentum locking that circles the Brillouin zone center and a spin-layer locking that allows states of opposite spin to be localized in different parts of the unit cell. Our findings pose challenges for the vast majority of models of cuprates, such as the Hubbard model and its variants, where spin-orbit interaction has been mostly neglected, and open the intriguing question of how the high-temperature superconducting state emerges in the presence of this nontrivial spin texture.

Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.

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