Inelastic neutron scattering studies of YFeO3

被引：49

作者：

Hahn, S. E. ^{[1
]}

Podlesnyak, A. A. ^{[1
]}

Ehlers, G. ^{[1
]}

Granroth, G. E. ^{[1
]}

Fishman, R. S. ^{[2
]}

Kolesnikov, A. I. ^{[3
]}

Pomjakushina, E. ^{[4
]}

Conder, K. ^{[4
]}

机构：

[1] Oak Ridge Natl Lab, Quantum Condensed Matter Div, Oak Ridge, TN 37831 USA

[2] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA

[3] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA

[4] Paul Scherrer Inst, Lab Dev & Methods, CH-5232 Villigen, Switzerland

来源：

PHYSICAL REVIEW B | 2014年 / 89卷 / 01期

关键词：

RARE-EARTH ORTHOFERRITES; WEAK FERROMAGNETISM; SPIN-WAVES; EXCITATIONS; FERRITE; TBFEO3;

D O I：

10.1103/PhysRevB.89.014420

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spin waves in the rare-earth orthorferrite YFeO3 have been studied by inelastic neutron scattering and analyzed with a full four-sublattice model including contributions from both the weak ferromagnetic and antiferromagnetic orders. Antiferromagnetic exchange interactions of J(1) = -4.23 +/- 0.08 (nearest neighbors only) or J(1) = -4.77 +/- 0.08 meV and J(2) = -0.21 +/- 0.04 meV lead to excellent fits for most branches at both low and high energies. An additional branch associated with the weak antiferromagnetic order was observed. This work paves the way for studies of other materials in this class containing spin reorientation transitions and magnetic rare-earth ions.

引用

页数：6

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