Unveiling hidden ferrimagnetism and giant magnetoelectricity in polar magnet Fe2Mo3O8

Magnetoelectric (ME) effect is recognized for its utility for low-power electronic devices. Largest ME coefficients are often associated with phase transitions in which ferroelectricity is induced by magnetic order. Unfortunately, in these systems, large ME response is revealed only upon elaborate p...

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Main Authors:	Wang, Yazhong, Pascut, Gheorghe L., Gao, Bin, Tyson, Trevor A., Haule, Kristjan, Kiryukhin, Valery, Cheong, Sang-Wook
Format:	Online
Language:	English
Published:	Nature Publishing Group 2015
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4508583/

id	pubmed-4508583
recordtype	oai_dc
spelling	pubmed-45085832015-07-28 Unveiling hidden ferrimagnetism and giant magnetoelectricity in polar magnet Fe2Mo3O8 Wang, Yazhong Pascut, Gheorghe L. Gao, Bin Tyson, Trevor A. Haule, Kristjan Kiryukhin, Valery Cheong, Sang-Wook Article Magnetoelectric (ME) effect is recognized for its utility for low-power electronic devices. Largest ME coefficients are often associated with phase transitions in which ferroelectricity is induced by magnetic order. Unfortunately, in these systems, large ME response is revealed only upon elaborate poling procedures. These procedures may become unnecessary in single-polar-domain crystals of polar magnets. Here we report giant ME effects in a polar magnet Fe2Mo3O8 at temperatures as high as 60 K. Polarization jumps of 0.3 μC/cm2, and repeated mutual control of ferroelectric and magnetic moments with differential ME coefficients on the order of 104 ps/m are achieved. Importantly, no electric or magnetic poling is needed, as necessary for applications. The sign of the ME coefficients can be switched by changing the applied “bias” magnetic field. The observed effects are associated with a hidden ferrimagnetic order unveiled by application of a magnetic field. Nature Publishing Group 2015-07-21 /pmc/articles/PMC4508583/ /pubmed/26194108 http://dx.doi.org/10.1038/srep12268 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Wang, Yazhong Pascut, Gheorghe L. Gao, Bin Tyson, Trevor A. Haule, Kristjan Kiryukhin, Valery Cheong, Sang-Wook
spellingShingle	Wang, Yazhong Pascut, Gheorghe L. Gao, Bin Tyson, Trevor A. Haule, Kristjan Kiryukhin, Valery Cheong, Sang-Wook Unveiling hidden ferrimagnetism and giant magnetoelectricity in polar magnet Fe2Mo3O8
author_facet	Wang, Yazhong Pascut, Gheorghe L. Gao, Bin Tyson, Trevor A. Haule, Kristjan Kiryukhin, Valery Cheong, Sang-Wook
author_sort	Wang, Yazhong
title	Unveiling hidden ferrimagnetism and giant magnetoelectricity in polar magnet Fe2Mo3O8
title_short	Unveiling hidden ferrimagnetism and giant magnetoelectricity in polar magnet Fe2Mo3O8
title_full	Unveiling hidden ferrimagnetism and giant magnetoelectricity in polar magnet Fe2Mo3O8
title_fullStr	Unveiling hidden ferrimagnetism and giant magnetoelectricity in polar magnet Fe2Mo3O8
title_full_unstemmed	Unveiling hidden ferrimagnetism and giant magnetoelectricity in polar magnet Fe2Mo3O8
title_sort	unveiling hidden ferrimagnetism and giant magnetoelectricity in polar magnet fe2mo3o8
description	Magnetoelectric (ME) effect is recognized for its utility for low-power electronic devices. Largest ME coefficients are often associated with phase transitions in which ferroelectricity is induced by magnetic order. Unfortunately, in these systems, large ME response is revealed only upon elaborate poling procedures. These procedures may become unnecessary in single-polar-domain crystals of polar magnets. Here we report giant ME effects in a polar magnet Fe2Mo3O8 at temperatures as high as 60 K. Polarization jumps of 0.3 μC/cm2, and repeated mutual control of ferroelectric and magnetic moments with differential ME coefficients on the order of 104 ps/m are achieved. Importantly, no electric or magnetic poling is needed, as necessary for applications. The sign of the ME coefficients can be switched by changing the applied “bias” magnetic field. The observed effects are associated with a hidden ferrimagnetic order unveiled by application of a magnetic field.
publisher	Nature Publishing Group
publishDate	2015
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4508583/
_version_	1613249872813621248

Unveiling hidden ferrimagnetism and giant magnetoelectricity in polar magnet Fe2Mo3O8

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