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Skyrmion lattice with a giant topological Hall effect in a frustrated triangular-lattice magnet

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Science  30 Aug 2019:
Vol. 365, Issue 6456, pp. 914-918
DOI: 10.1126/science.aau0968

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Skyrmions in a frustrated magnet

Skyrmions—tiny, topologically protected whirlpools of spin—have been investigated as potential information carriers in spintronic devices. Usually, skyrmions appear in noncentrosymmetric materials or at interfaces between materials. In contrast to this rule of thumb, Kurumaji et al. observed a skyrmion lattice phase in the centrosymmetric material Gd2PdSi3. The magnetic frustration present in this material helped stabilize the skyrmion phase, which was detected through transport measurements in magnetic field.

Science, this issue p. 914

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