4.8 Article

Skyrmions in a Doped Antiferromagnet

Journal

PHYSICAL REVIEW LETTERS
Volume 106, Issue 22, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.227206

Keywords

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Funding

  1. NSF [DMR-0403491, DMR-0905843]
  2. NHMFL via NSF [DMR-0654118, MEXT-CT-2006-039047]
  3. EURYI [PRIN-2007FW3MJX]
  4. National Research Foundation, Singapore

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Magnetization and magnetoresistance have been measured in insulating antiferromagnetic La2Cu0.97Li0.03O4 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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