The pressure effect on the magnetic commensurability and ferroelectricity in multiferroic HoMn2 O5

C. R. dela Cruz; B. Lorenz; W. Ratcliff; J. Lynn; M. M. Gospodinov; C. W. Chu

doi:10.1016/j.physb.2007.10.360

The pressure effect on the magnetic commensurability and ferroelectricity in multiferroic HoMn₂ O₅

C. R. dela Cruz, B. Lorenz, W. Ratcliff, J. Lynn, M. M. Gospodinov, C. W. Chu

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

9 Scopus citations

Abstract

The multiferroic HoMn₂ O₅ is a frustrated magnetic system with a non-collinear commensurate structure in its ferroelectric state. This work presents polarization measurements under isotropic pressure showing the stabilization of the high ferroelectric polarization state. This is associated with the pressure induced phase transition from an incommensurate magnetic structure to a commensurate one once the critical pressure is passed as shown by elastic powder neutron diffraction measurements. In addition, the small increase in the polarization upon spin reorientation in the commensurate magnetic state of HoMn₂ O₅ is associated with a change in the magnetic structure without change in commensurability.

Original language	English
Pages (from-to)	1359-1361
Number of pages	3
Journal	Physica B: Physics of Condensed Matter
Volume	403
Issue number	5-9
DOIs	https://doi.org/10.1016/j.physb.2007.10.360
State	Published - Apr 1 2008
Externally published	Yes

Keywords

Frustrated
Incommensurate-commensurate magnetic transition
Multiferroic ferroelectricity

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10.1016/j.physb.2007.10.360

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title = "The pressure effect on the magnetic commensurability and ferroelectricity in multiferroic HoMn2 O5",

abstract = "The multiferroic HoMn2 O5 is a frustrated magnetic system with a non-collinear commensurate structure in its ferroelectric state. This work presents polarization measurements under isotropic pressure showing the stabilization of the high ferroelectric polarization state. This is associated with the pressure induced phase transition from an incommensurate magnetic structure to a commensurate one once the critical pressure is passed as shown by elastic powder neutron diffraction measurements. In addition, the small increase in the polarization upon spin reorientation in the commensurate magnetic state of HoMn2 O5 is associated with a change in the magnetic structure without change in commensurability.",

keywords = "Frustrated, Incommensurate-commensurate magnetic transition, Multiferroic ferroelectricity",

author = "{dela Cruz}, {C. R.} and B. Lorenz and W. Ratcliff and J. Lynn and Gospodinov, {M. M.} and Chu, {C. W.}",

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T1 - The pressure effect on the magnetic commensurability and ferroelectricity in multiferroic HoMn2 O5

AU - dela Cruz, C. R.

AU - Lorenz, B.

AU - Ratcliff, W.

AU - Lynn, J.

AU - Gospodinov, M. M.

AU - Chu, C. W.

PY - 2008/4/1

Y1 - 2008/4/1

N2 - The multiferroic HoMn2 O5 is a frustrated magnetic system with a non-collinear commensurate structure in its ferroelectric state. This work presents polarization measurements under isotropic pressure showing the stabilization of the high ferroelectric polarization state. This is associated with the pressure induced phase transition from an incommensurate magnetic structure to a commensurate one once the critical pressure is passed as shown by elastic powder neutron diffraction measurements. In addition, the small increase in the polarization upon spin reorientation in the commensurate magnetic state of HoMn2 O5 is associated with a change in the magnetic structure without change in commensurability.

AB - The multiferroic HoMn2 O5 is a frustrated magnetic system with a non-collinear commensurate structure in its ferroelectric state. This work presents polarization measurements under isotropic pressure showing the stabilization of the high ferroelectric polarization state. This is associated with the pressure induced phase transition from an incommensurate magnetic structure to a commensurate one once the critical pressure is passed as shown by elastic powder neutron diffraction measurements. In addition, the small increase in the polarization upon spin reorientation in the commensurate magnetic state of HoMn2 O5 is associated with a change in the magnetic structure without change in commensurability.

KW - Frustrated

KW - Incommensurate-commensurate magnetic transition

KW - Multiferroic ferroelectricity

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JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

IS - 5-9

ER -

The pressure effect on the magnetic commensurability and ferroelectricity in multiferroic HoMn₂ O₅

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Keywords

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