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Adv Mater. 2015 Apr 01;27(13):2177-81. doi: 10.1002/adma.201405244. Epub 2015 Feb 11.

Mn2FeWO6 : A new Ni3TeO6-type polar and magnetic oxide.

Advanced materials (Deerfield Beach, Fla.)

Man-Rong Li, Mark Croft, Peter W Stephens, Meng Ye, David Vanderbilt, Maria Retuerto, Zheng Deng, Christoph P Grams, Joachim Hemberger, Joke Hadermann, Wen-Min Li, Chang-Qing Jin, Felix O Saouma, Joon I Jang, Hirofumi Akamatsu, Venkatraman Gopalan, David Walker, Martha Greenblatt

Affiliations

  1. Department of Chemistry and Chemical Biology, Rutgers, the State University of New Jersey, 610 Taylor Road, Piscataway, NJ, 08854, USA.

PMID: 25677612 DOI: 10.1002/adma.201405244

Abstract

Mn(2+)2 Fe(2+)W(6+)O6 , a new polar magnetic phase, adopts the corundum-derived Ni3TeO6 -type structure with large spontaneous polarization (PS) of 67.8 μC cm(-2), complex antiferromagnetic order below ≈75 K, and field-induced first-order transition to a ferrimagnetic phase below ≈30 K. First-principles calculations predict a ferrimagnetic (udu) ground state, optimal switching path along the c-axis, and transition to a lower energy udu-udd magnetic double cell.

© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords: Mn2FeWO6; first-principles calculations; magnetic phase diagrams; multiferroics; polar magnets

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