Discovery of parity-violating Majorana fermions in a chiral superconductor Sr2RuO4

Hiroyoshi Nobukane , Akiyuki Tokuno , Toyoki Matsuyama , Satoshi Tanda

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classification ❄️ cond-mat.supr-con cond-mat.mes-hall

keywords chiralcurrentfermionsmajoranasr2ruo4biasdomainparity-violating

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We found parity-violating Majorana fermions in a chiral superconductor Sr2RuO4. The current-voltage curves show an anomalous behavior: The induced voltage is an even function of the bias current. The magnetic field dependent results suggest the excitation of the Majorana fermions along the closed chiral edge current of the single domain under bias current. We also discuss the relationship between a change of the chirality and spontaneous magnetization of the single domain Sr2RuO4.

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Discovery of parity-violating Majorana fermions in a chiral superconductor Sr2RuO4

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