Commensurate phase of multiferroic HoMn2O5 studied by x-ray magnetic scattering

被引：24

作者：

Beutier, G. ^{[1
]}

Bombardi, A. ^{[1
]}

Vecchini, C. ^{[2
,3
]}

Radaelli, P. G. ^{[2
]}

Park, S. ^{[4
,5
]}

Cheong, S-W. ^{[4
,5
]}

Chapon, L. C. ^{[2
]}

机构：

[1] Diamond Light Source, Harwell OX11 0DE, Berks, England

[2] Rutherford Appleton Lab, ISIS, Didcot OX11 0QX, Oxon, England

[3] IESL FORTH, Iraklion 71110, Crete, Greece

[4] Rutgers State Univ, Rutgers Ctr Emergent Mat, Piscataway, NJ 08854 USA

[5] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.77.172408

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The commensurate phase of multiferroic HoMn(2)O(5) was studied by x-ray magnetic scattering, both off-resonance and in resonant conditions at the Ho L(3) edge. Below 40 K, magnetic ordering at the Ho sites is induced by the main Mn magnetic order parameter, and its temperature dependence is well accounted for by a simple Curie-Weiss susceptibility model. A lattice distortion of periodicity twice that of the magnetic order is also evidenced. The azimuthal scans confirm the model of the magnetic structure recently refined from neutron diffraction data for both Mn and Ho sites, indicating that the two sublattices interact via magnetic superexchange.

引用

页数：4

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