Novel spin‐flop effects in FexMn1−xF2
| العنوان: | Novel spin‐flop effects in FexMn1−xF2 |
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| المؤلفون: | V. Jaccarino, Toshiro Sakakibara, Muneyuki Date, R. M. Toussaint, M. Motokawa, A. R. King |
| المصدر: | Journal of Applied Physics. 55:2324-2326 |
| بيانات النشر: | AIP Publishing, 1984. |
| سنة النشر: | 1984 |
| مصطلحات موضوعية: | Spins, Condensed matter physics, Chemistry, media_common.quotation_subject, Phase (waves), General Physics and Astronomy, Asymmetry, Magnetization, Antiferromagnetism, Condensed Matter::Strongly Correlated Electrons, Spin-flip, Phase diagram, Spin-½, media_common |
| الوصف: | High‐pulsed‐field magnetization measurements in the randomly mixed antiferromagnet FexMn1−xF2, with 0.15≤x≤0.40, have revealed an extremely broad spin‐flop transition, with a width of ΔH≂60 kOe. An unusual square shape, with rounded edges, is found in dM/dH, with an asymmetry which depends on x. For the largest values of x, an additional sharp peak is also seen. A four‐sublattice molecular‐field model has been used to interpret the results, and predicts a number of interesting effects. For 0.01≲x≲0.10, the usual first‐order spin‐flop is suppressed, and a new canted‐intermedi ate (CI) phase appears, in which the spins rotate continuously from the antiferromagnetic (AF) to spin‐flop (SF) phase. For 0.10≲x≲0.6, the CI–SF transition becomes first order, and for x≳0.6 the CI phase disappears, leaving a relatively normal first‐order spin‐flop. The model shows that small misalignments cause considerable broadening and rounding of the transition, and convincingly reproduces the experimental shapes and widths. |
| تدمد: | 1089-7550 0021-8979 |
| DOI: | 10.1063/1.333650 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::251bf28cc28f7aab9a06392c98a8800d https://doi.org/10.1063/1.333650 |
| رقم الانضمام: | edsair.doi...........251bf28cc28f7aab9a06392c98a8800d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10897550 00218979 |
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| DOI: | 10.1063/1.333650 |