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Spin-valley locking...
Spin-valley locking in the normal state of a transition-metal dichacogenide superconductor
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- Thiagarajan, Balasubramanian (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Bawden, L (author)
- University of St Andrews
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- Cooil, S. P (author)
- Norwegian University of Science and Technology
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- Mazzola, F (author)
- Norwegian University of Science and Technology
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- Collins-McIntyre, L. J (author)
- University of St Andrews
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- Sunko, V (author)
- University of St Andrews,Max Planck Institute for Chemical Physics of Solids
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- Hunvik, K. W. E (author)
- Norwegian University of Science and Technology
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- Leandersson, Mats (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Polley, Craig (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Kim, T. M (author)
- Diamond Light Source
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- Hoesch, M (author)
- Diamond Light Source
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- Wells, J. W. (author)
- Norwegian University of Science and Technology
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- Balakrishnan, G (author)
- University of Warwick
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- Bahramy, M. S (author)
- RIKEN, Center for Emergent Matter Science,University of Tokyo
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- King, P. D. C (author)
- University of St Andrews
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- Riley, J. M. (author)
- University of St Andrews,Diamond Light Source
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(creator_code:org_t)
- 2016-05-23
- 2016
- English.
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In: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 7
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Abstract
Subject headings
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- Metallic transition-metal dichalcogenides (TMDCs) are benchmark systems for studying and controlling intertwined electronic orders in solids, with superconductivity developing from a charge-density wave state. The interplay between such phases is thought to play a critical role in the unconventional superconductivity of cuprates, Fe-based and heavy-fermion systems, yet even for the more moderately-correlated TMDCs, their nature and origins have proved controversial. Here, we study a prototypical example, 2H-NbSe2, by spin- and angle-resolved photoemission and first-principles theory. We find that the normal state, from which its hallmark collective phases emerge, is characterized by quasiparticles whose spin is locked to their valley pseudospin. This results from a combination of strong spin–orbit interactions and local inversion symmetry breaking, while interlayer coupling further drives a rich three-dimensional momentum dependence of the underlying Fermi-surface spin texture. These findings necessitate a re-investigation of the nature of charge order and superconducting pairing in NbSe2 and related TMDCs.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Thiagarajan, Bal ...
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Bawden, L
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Cooil, S. P
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Mazzola, F
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Collins-McIntyre ...
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Sunko, V
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Hunvik, K. W. E
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Leandersson, Mat ...
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Polley, Craig
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Kim, T. M
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Hoesch, M
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Wells, J. W.
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Balakrishnan, G
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Bahramy, M. S
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King, P. D. C
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Riley, J. M.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Nature Communica ...
- By the university
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Lund University