TY - JOUR
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.
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
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.
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U2 - 10.1016/j.physb.2007.10.360
DO - 10.1016/j.physb.2007.10.360
M3 - Article
AN - SCOPUS:39849090355
SN - 0921-4526
VL - 403
SP - 1359
EP - 1361
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
IS - 5-9
ER -