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Skyrmions in a Doped Antiferromagnet

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.

preprint2011arXivOpen access

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

cond-mat.other cond-mat.str-el

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

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Skyrmions in a Doped Antiferromagnet

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