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arXiv · 1006.1891

Skyrmions in a Doped Antiferromagnet

I. Raicevic·Dragana Popovic·C. Panagopoulos·L. Benfatto·M. B. Silva Neto·E. S. Choi·T. Sasagawa
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Abstract

Magnetization and magnetoresistance have been measured in insulating antiferromagnetic La_{2}Cu_{0.97}Li_{0.03}O_{4} over a wide range of temperatures, magnetic fields, and field orientations. The magnetoresistance step associated with a weak ferromagnetic transition exhibits a striking nonmonotonic temperature dependence, consistent with the presence of skyrmions.

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I. Raicevic, Dragana Popovic, C. Panagopoulos, L. Benfatto, M. B. Silva Neto, E. S. Choi, T. Sasagawa. 2011-06-07. Skyrmions in a Doped Antiferromagnet. https://doi.org/10.1103/physrevlett.106.227206

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