Negative and positive magnetoresistance in the itinerant antiferromagnet BaMn2Pn2 (Pn = P, As, Sb, and Bi)

We report the discovery of a large-magnetoresistance (LMR) phenomenon in a family of BaMn2Pn2 antiferromagnets (Pn = P, As, Sb, and Bi) with parity-time symmetry. The resistivities of these materials are reduced by 60 times in magnetic fields H, thus yielding a LMR of about −98%. The LMR changes sys...

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Veröffentlicht in:	Physical review. B 2019-05, Vol.99 (19), p.195111
Hauptverfasser:	Huynh, Kim-Khuong, Ogasawara, Takuma, Kitahara, Keita, Tanabe, Yoichi, Matsushita, Stephane Yu, Tahara, Time, Kida, Takanori, Hagiwara, Masayuki, Arčon, Denis, Tanigaki, Katsumi
Format:	Artikel
Sprache:	eng
Schlagworte:	Anisotropy Antiferromagnetism Antimony Bismuth Broken symmetry Electrical resistivity Energy bands Magnetoresistance Magnetoresistivity Parity Spin-orbit interactions Symmetry
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