Magnetic structure of DyMn2O5 determined by resonant x-ray scattering

被引：12
|
作者：
Johnstone, G. E. [1 ]
Ewings, R. A. [2 ]
Johnson, R. D. [1 ,2 ]
Mazzoli, C. [3 ]
Walker, H. C. [3 ]
Boothroyd, A. T. [1 ]
机构：
[1] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England
[2] STFC Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England
[3] European Synchrotron Radiat Facil, F-38043 Grenoble 9, France
来源：
PHYSICAL REVIEW B | 2012年 / 85卷 / 22期
基金：
英国工程与自然科学研究理事会; 英国科学技术设施理事会;
关键词：
POLARIZATION DEPENDENCE;
D O I：
10.1103/PhysRevB.85.224403
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Resonant magnetic x-ray scattering has been used to investigate the magnetic structure of the magnetoelectric multiferroic DyMn2O5. We have studied the magnetic structure in the ferroelectric phase of this material, which displays the strongest ferroelectric polarization and magnetodielectric effect of the RMn2O5 (where R is a rare-earth ion, Y or Bi) family. The magnetic structure observed is similar to that of the other members of the series, but differs in the direction of the ordered moments. In DyMn2O5, both the Dy and Mn moments lie close to the b axis, whereas in other RMn2O5 they lie close to the a axis.
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页数：7
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