Hedgehog-like spin texture in Sb-doped MnBi₂Te₄
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classification
cond-mat.mtrl-sci
keywords
spintexturehedgehog-likemnbisb-dopedangle-resolvedanomalousarpes
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We employ spin- and angle-resolved photoemission spectroscopy and circular-dichroism ARPES to systematically investigate the spin texture of Sb-doped MnBi$_2$Te$_4$. Our results display a hedgehog-like spin texture in this system which is signified by reversed-orienting out-of-plane spins at the Dirac gap. Our finding reveals the presence of time-reversal symmetry breaking, implying the possibility for realization of high-temperature quantum anomalous Hall effect.
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