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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/4548

Title: Origin of ferroelectric polarization in spiral magnetic structure of MnWO(4)
Authors: SHANAVAS, KV
CHOUDHURY, D
DASGUPTA, I
SHARMA, SM
SARMA, DD
Keywords: multiferroics
spectroscopy
transition
spectra
oxide
spin
Issue Date: 2010
Publisher: AMER PHYSICAL SOC
Citation: PHYSICAL REVIEW B, 81(21), -
Abstract: Magnetism and the origin of ferroelectricity in the multiferroic MnWO(4) are studied using ab initio electronic-structure calculations, correctly reproducing the magnetic ground state. The calculated ferroelectric polarization is in good agreement with experiments. Our results reveal that spin-orbit interaction is necessary and sufficient to explain the observed ferroelectric polarization, establishing an entirely electronic origin of ferroelectricity in MnWO(4). The origin of spin-orbit interaction in this compound with a nominally d(5) L=0 orbitally quenched state is elucidated by analyzing results of x-ray absorption spectroscopy.
URI: http://dx.doi.org/10.1103/PhysRevB.81.212406
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4548
http://hdl.handle.net/10054/4548
ISSN: 1098-0121
Appears in Collections:Article

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