Direct observation of a coupling between spin, lattice and electric dipole moment in multiferroic YMnO3 / Lee S., Pirogov A., Han J.H., Park J.-G., Hoshikawa A., Kamiyama T. // Physical Review B - Condensed Matter and Materials Physics. - 2005. - V. 71, l. 18.

ISSN:

10980121

Type:

Article

Abstract:

YMnO3 has an antiferromagnetic transition at 76 K with a ferroelectric transition at much higher temperature, making it a rare example of systems having both ferroelectric and magnetic transitions and thus a so-called multiferroic compound. Through high-resolution neutron diffraction studies, we have demonstrated here that at the antiferromagnetic transition of YMnO3 there is a strong coupling between the spin and lattice degrees of freedom splitting two Mn-O(3) and Mn-O(4) bond distances on a basal plane. This coupling then induces an unmistakable change in the electric dipole moments, i.e., a coupling between the magnetic and electric dipole moments. We discuss how this rare phenomenon can occur within a Ginzburg-Landau theory. © 2005 The American Physical Society.

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нет данных

DOI:

10.1103/PhysRevB.71.180413

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https://www.scopus.com/inward/record.uri?eid=2-s2.0-33644560338&doi=10.1103%2fPhysRevB.71.180413&partnerID=40&md5=4f4a58d5a6f68e4af4b1ff1ded90c059

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-33644560338&doi=10.1103%2fPhysRevB.71.180413&partnerID=40&md5=4f4a58d5a6f68e4af4b1ff1ded90c059
Affiliations	Department of Physics, Institute of Basic Science, SungKyunKwan University, Suwon 440-746, South Korea; Center for Strongly Correlated Materials Research, Seoul National University, Seoul 151-742, South Korea; Institute of Materials Science, KEK, Tsukuba-shi, Ibaraki 305-0801, Japan
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Correspondence Address	Lee, S.; Department of Physics, Institute of Basic Science, SungKyunKwan University, Suwon 440-746, South Korea
CODEN	PRBMD
Language of Original Document	English
Abbreviated Source Title	Phys. Rev. B Condens. Matter Mater. Phys.
Source	Scopus