155Gd Mössbauer investigation of the magnetic order and spin-reorientation in Gd3Ag4Sn4
| Autor: | C. J. Voyer, J. M. Cadogan, D. H. Ryan |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Neutron powder diffraction
Nuclear and High Energy Physics Condensed matter physics Magnetic structure Chemistry Magnetic order Condensed Matter Physics Atomic and Molecular Physics and Optics Condensed Matter::Materials Science Crystallography Mössbauer spectroscopy Physical and Theoretical Chemistry Spin (physics) Hyperfine structure |
| Zdroj: | Hyperfine Interactions. 207:121-125 |
| ISSN: | 1572-9540 0304-3843 |
| DOI: | 10.1007/s10751-011-0416-3 |
| Popis: | In a recent study of the magnetic order in Gd3Ag4Sn4 by neutron powder diffraction and 119Sn Mossbauer Spectroscopy we showed that both the Gd(2d) and Gd(4e) sublattices order antiferromagnetically at 28.8(2) K. We also demonstrated that the ‘magnetic event’ around 8 K is in fact a ‘plane to axis’ spin-reorientation of the Gd magnetic structure. Here, we extend our study with 155Gd Mossbauer Spectroscopy. The initial magnetic ordering at 30(2) K is clear for both sites and substantial changes in the hyperfine fields are observed at 8 K when the magnetic structure reorients. |
| Databáze: | OpenAIRE |
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