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Regensburg 2013 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 32: Spintronics and magnetic semiconductors (MA, jointly with HL)

HL 32.1: Vortrag

Dienstag, 12. März 2013, 09:30–09:45, H3

Low versus high energy excitations in the Skyrmion lattice system Cu2OSeO3 — •Dirk Wulferding1, Peter Lemmens1, Vladimir Gnezdilov2, Yurii Pashkevich3, Christian Pfleiderer4, and Helmuth Berger51IPKM, TU-BS, Braunschweig — 2ILTPE, Kharkov, Ukraine — 3DonFTI, Donetsk, Ukraine — 4Physikdepartment, TU München — 5EPFL, Lausanne, Switzerland

Cu2OSeO3, a ferromagnetic insulator with a skyrmion lattice phase previously known from intermetallics, shows low as well as high energy excitations that strongly depend on small applied magnetic fields. In particular, the low energy anomalies are discussed in relation to the Skyrmion lattice. Work supported by DFG, B-IGSM and NTH School for Contacts in Nanosystems.

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