Neutron inelastic scattering study of rare-earth orthoferrite HoFeO$_3$
| Autor: | S.A. Guretskii, I.A. Zobkalo, Vladimir Hutanu, A.K. Ovsyanikov, W. Schmidt, S. N. Barilo |
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| Rok vydání: | 2020 |
| Předmět: |
Orthoferrite
FOS: Physical sciences 02 engineering and technology Inelastic scattering 01 natural sciences Inelastic neutron scattering Condensed Matter - Strongly Correlated Electrons chemistry.chemical_compound 0103 physical sciences Antiferromagnetism Neutron Anisotropy 010302 applied physics Physics Condensed Matter - Materials Science Condensed matter physics Strongly Correlated Electrons (cond-mat.str-el) Exchange interaction Materials Science (cond-mat.mtrl-sci) 021001 nanoscience & nanotechnology Condensed Matter Physics Electronic Optical and Magnetic Materials chemistry Condensed Matter::Strongly Correlated Electrons 0210 nano-technology Single crystal |
| DOI: | 10.48550/arxiv.2001.11313 |
| Popis: | By the single crystal inelastic neutron scattering the orthoferrite HoFeO3 was studied. We show that the spin dynamics of the Fe subsystem does not change through the spin-reorientation transitions. The observed spectrum of magnetic excitations was analyzed in the frames of linear spin-wave theory. Within this approach the antiferromagnetic exchange interactions of nearest neighbors and next nearest neighbors were obtained for Fe subsystem. Parameters of Dzyaloshinskii-Moriya interactions at Fe subsystem were refined. The temperature dependence of the gap in Fe spin-wave spectrum indicates the temperature evolution of the anisotropy parameters. The estimations for the values of Fe-Ho and Ho-Ho exchange interaction were made as well. |
| Databáze: | OpenAIRE |
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