Publication Date:
2017-09-16
Description:
Author(s): Ellen Fogh, Rasmus Toft-Petersen, Eric Ressouche, Christof Niedermayer, Sonja Lindahl Holm, Maciej Bartkowiak, Oleksandr Prokhnenko, Steffen Sloth, Frederik Werner Isaksen, David Vaknin, and Niels Bech Christensen Magnetoelectric materials are characterized by a coupling of electric and magnetic degrees of freedom, which can be brought about when magnetic ordering breaks inversion symmetry. This is the case in LiCoPO 4 , which displays one of the largest magnetoelectric effects among transition metal compounds. Using neutron diffraction in combination with state-of-the-art high-field magnet technology, the authors of this paper study the magnetic structures and phase diagram of LiCoPO 4 in fields up to 25.9 T. It is shown that the known magnetoelectric response is tied to commensurate magnetic order, while an incommensurate cycloid phase allows electric polarization along a direction yet to be probed experimentally. [Phys. Rev. B 96, 104420] Published Fri Sep 15, 2017
Keywords:
Magnetism
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
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