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Anomalous Hall Effect in Bismuth

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arxiv 2002.00656 v2 pith:VFLOJLTK submitted 2020-02-03 cond-mat.str-el cond-mat.othercond-mat.supr-con

Bruno Camargo , Piort Gierlowski , Andrei Alaferdov , Iraida Demchenko , Maciej Sawicki , Katarzyna Gas , Yakov Kopelevich This is my paper · ORCID
classification cond-mat.str-elcond-mat.othercond-mat.supr-con
keywords bismuthanomalouseffecthallsuggestingbelowboundariescoincides
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abstract

We report the occurrence of ferromagnetic-like anomalous Hall effect (AHE) below $30$ mT in bismuth single and policrystals. The signatures of ferromagnetism in transport are not corroborated in magnetization measurements, thus suggesting the induction of non-intrinsic magnetism at surfaces and grain boundaries in bismuth. The suppression of the AHE with the increase of magnetic field and temperature coincides with previous reports of superconductivity in Bi, suggesting an interplay between the two phenomena.

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