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Dresden 2020 – wissenschaftliches Programm

Die DPG-Frühjahrstagung in Dresden musste abgesagt werden! Lesen Sie mehr ...

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KFM: Fachverband Kristalline Festkörper und deren Mikrostruktur

KFM 10: Multiferroics and Magnetoelectric Coupling II (joint session MA/KFM)

KFM 10.6: Vortrag

Mittwoch, 18. März 2020, 16:15–16:30, HSZ 401

Magnetoelectricity in Itinerant-Electron Paramagnets, Ferromagnets and Antiferromagnets — •Roland Winkler1,2,3 and Ulrich Zülicke4,21Physics, Northern Illinois University, USA — 2Materials Science Division, Argonne National Laboratory, USA — 3Materials Science and Engineering, University of Illinois at Urbana-Champaign, USA — 4School of Chemical and Physical Sciences and MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, New Zealand

We present a detailed theory for magnetoelectricity in itinerant-electron paramagnets, ferromagnets and antiferromagnets, whereby an electric field can induce a magnetization and a magnetic field can induce a polarization. Accurate numerical calculations are complementd by analytical models that provide a detailed microscopic understanding of magnetoelectricity in itinerant-electron systems. Our realistic calculations suggest that an electrically induced magnetization can be as large as one Bohr magneton per charge carrier.

This work was supported by the NSF under Grant No. DMR-1310199. Research at UIUC was supported by the Illinois MRSEC, NSF Grant No. DMR-1720633. Work at Argonne was supported by DOE BES under Contract No. DE-AC02-06CH11357.

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