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Hedgehog spin textu...
Hedgehog spin texture and Berry's phase tuning in a magnetic topological insulator
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Xu, Su-Yang (author)
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Neupane, Madhab (author)
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Liu, Chang (author)
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Zhang, Duming (author)
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Richardella, Anthony (author)
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Wray, L. Andrew (author)
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Alidoust, Nasser (author)
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- Leandersson, Mats (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Thiagarajan, Balasubramanian (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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Sanchez-Barriga, Jaime (author)
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Rader, Oliver (author)
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Landolt, Gabriel (author)
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Slomski, Bartosz (author)
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Dil, Jan Hugo (author)
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Osterwalder, Juerg (author)
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Chang, Tay-Rong (author)
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Jeng, Horng-Tay (author)
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Lin, Hsin (author)
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Bansil, Arun (author)
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Samarth, Nitin (author)
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Hasan, M. Zahid (author)
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(creator_code:org_t)
- 2012
- 2012
- English.
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In: Nature Physics. - 1745-2473. ; 8:8, s. 616-622
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Abstract
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- Understanding and control of spin degrees of freedom on the surfaces of topological materials are key to future applications as well as for realizing novel physics such as the axion electrodynamics associated with time-reversal (TR) symmetry breaking on the surface. We experimentally demonstrate magnetically induced spin reorientation phenomena simultaneous with a Dirac-metal to gapped-insulator transition on the surfaces of manganese-doped Bi2Se3 thin films. The resulting electronic groundstate exhibits unique hedgehog-like spin textures at low energies, which directly demonstrate the mechanics of TR symmetry breaking on the surface. We further show that an insulating gap induced by quantum tunnelling between surfaces exhibits spin texture modulation at low energies but respects TR invariance. These spin phenomena and the control of their Fermi surface geometrical phase first demonstrated in our experiments pave the way for the future realization of many predicted exotic magnetic phenomena of topological origin.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Xu, Su-Yang
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Neupane, Madhab
-
Liu, Chang
-
Zhang, Duming
-
Richardella, Ant ...
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Wray, L. Andrew
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show more...
-
Alidoust, Nasser
-
Leandersson, Mat ...
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Thiagarajan, Bal ...
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Sanchez-Barriga, ...
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Rader, Oliver
-
Landolt, Gabriel
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Slomski, Bartosz
-
Dil, Jan Hugo
-
Osterwalder, Jue ...
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Chang, Tay-Rong
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Jeng, Horng-Tay
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Lin, Hsin
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Bansil, Arun
-
Samarth, Nitin
-
Hasan, M. Zahid
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- Articles in the publication
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Nature Physics
- By the university
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Lund University