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Abstracts
In a 4f-3d ferrimagnet the molecular field (a net value expressing the relevant exchange interactions) can be determined from high-field magnetization measurements. If the applied field is high enough, it breaks the ferrimagnetic ground state and drives the system towards ferromagnetic order via non-collinear intermediate phases. Magnetization curves of Er_2Fe_{17} singe crystal were measured along the [100] crystallographic direction in magnetic fields up to 50 T. An unfixed sample, free to rotate, was measured as well. The magnetization measured along the easy magnetization direction shows jumps at 37.5 and 44 T. The first jump was used for the determination of the molecular field (66.4 T). This agrees with the data for the unfixed sample where a kink in the magnetization at 33.5 T yields a molecular field of 65.7 T. The obtained values are in a good agreement with literature data.
Discipline
- 75.30.Et: Exchange and superexchange interactions(see also 71.70.Gm Exchange interactions)
- 75.30.Kz: Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.)(for ferroelectric phase transitions, see 77.80.B-; for superconductivity phase diagrams, see 74.25.Dw)
Journal
Year
Volume
Issue
Pages
178-180
Physical description
Dates
published
2009-01
Contributors
author
- Hochfeld-Magnetlabor Dresden (HLD), Forschungszentrum Dresden-Rossdeuorf (FZD), D-01314 Dresden, Germany
author
- Leibniz Institute for Solid State and Materials Research Dresden, PF 51 01 19, D-01171 Dresden, Germany
author
- Faculty of Physics, Tver State University, 33 Gelabova Street, 170002 Tver, Russia
author
- Leibniz Institute for Solid State and Materials Research Dresden, PF 51 01 19, D-01171 Dresden, Germany
author
- Hochfeld-Magnetlabor Dresden (HLD), Forschungszentrum Dresden-Rossendorf (FZD), D-01314 Dresden, Germany
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv115n1046kz