Observation of spontaneous ferroelectric polarization reversal in multiferroic Mn1-xNixW04 (x ≈ 0.16)

Young Sang Song; Jae Ho Chung; Kwang Woo Shin; Kee Hoon Kim; In Hwan Oh

doi:10.1063/1.4885392

Observation of spontaneous ferroelectric polarization reversal in multiferroic Mn_1-xNi_xW0₄ (x ≈ 0.16)

Young Sang Song, Jae Ho Chung, Kwang Woo Shin, Kee Hoon Kim, In Hwan Oh

Department of Physics

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

In this Letter, we report the effect of replacing Mn²⁺ ions with Ni²⁺on the ferroelectricity of multiferroic MnW0₄ single crystals. When the amount of substitution was close to 16%, the sign of ferroelectric polarization spontaneously became negative with respect to initial dc poling field at a few degrees below Tc. Neutron diffraction intensities revealed a sudden change in the underlying spiral spin ordering that occurred coincidentally with the observed sign reversal. This unusual behavior in zero magnetic fields suggests that strong competitions between the two different magnetic ions may provide an efficient route to manipulation of existing multiferroics.

Original language	English
Article number	252904
Journal	Applied Physics Letters
Volume	104
Issue number	25
DOIs	https://doi.org/10.1063/1.4885392
Publication status	Published - 2014 Jun 23

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Observation of spontaneous ferroelectric polarization reversal in multiferroic Mn1-xNixW04 (x ≈ 0.16)",

abstract = "In this Letter, we report the effect of replacing Mn2+ ions with Ni2+on the ferroelectricity of multiferroic MnW04 single crystals. When the amount of substitution was close to 16%, the sign of ferroelectric polarization spontaneously became negative with respect to initial dc poling field at a few degrees below Tc. Neutron diffraction intensities revealed a sudden change in the underlying spiral spin ordering that occurred coincidentally with the observed sign reversal. This unusual behavior in zero magnetic fields suggests that strong competitions between the two different magnetic ions may provide an efficient route to manipulation of existing multiferroics.",

author = "Song, {Young Sang} and Chung, {Jae Ho} and Shin, {Kwang Woo} and Kim, {Kee Hoon} and Oh, {In Hwan}",

note = "Funding Information: This work was financially supported by the National Research Foundation of Korea through the ARCNEX (NRF-2011-0031933) and the Nuclear R&D Programs (NRF- 2013M2A2A6029081). The work at SNU was supported by the Creative Research Initiative (2010-0018300). Publisher Copyright: {\textcopyright} 2014 AIP Publishing LLC.",

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AU - Shin, Kwang Woo

AU - Kim, Kee Hoon

AU - Oh, In Hwan

N1 - Funding Information: This work was financially supported by the National Research Foundation of Korea through the ARCNEX (NRF-2011-0031933) and the Nuclear R&D Programs (NRF- 2013M2A2A6029081). The work at SNU was supported by the Creative Research Initiative (2010-0018300). Publisher Copyright: © 2014 AIP Publishing LLC.

PY - 2014/6/23

Y1 - 2014/6/23

N2 - In this Letter, we report the effect of replacing Mn2+ ions with Ni2+on the ferroelectricity of multiferroic MnW04 single crystals. When the amount of substitution was close to 16%, the sign of ferroelectric polarization spontaneously became negative with respect to initial dc poling field at a few degrees below Tc. Neutron diffraction intensities revealed a sudden change in the underlying spiral spin ordering that occurred coincidentally with the observed sign reversal. This unusual behavior in zero magnetic fields suggests that strong competitions between the two different magnetic ions may provide an efficient route to manipulation of existing multiferroics.

AB - In this Letter, we report the effect of replacing Mn2+ ions with Ni2+on the ferroelectricity of multiferroic MnW04 single crystals. When the amount of substitution was close to 16%, the sign of ferroelectric polarization spontaneously became negative with respect to initial dc poling field at a few degrees below Tc. Neutron diffraction intensities revealed a sudden change in the underlying spiral spin ordering that occurred coincidentally with the observed sign reversal. This unusual behavior in zero magnetic fields suggests that strong competitions between the two different magnetic ions may provide an efficient route to manipulation of existing multiferroics.

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Observation of spontaneous ferroelectric polarization reversal in multiferroic Mn_1-xNi_xW0₄ (x ≈ 0.16)

Abstract

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