Reentrant spin-flop transition in nanomagnets
| Autor: | Mattia Crescioli, R. Vaia, Paolo Politi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Physics
Condensed Matter - Materials Science Spins Condensed matter physics Field (physics) Condensed Matter - Mesoscale and Nanoscale Physics Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences spin-flop Condensed Matter Physics Nanomagnet Electronic Optical and Magnetic Materials Magnetic field Antiparallel (mathematics) magnetism Mesoscale and Nanoscale Physics (cond-mat.mes-hall) reentrant transition Antiferromagnetism Condensed Matter::Strongly Correlated Electrons spin chain Quantum fluctuation Spin-½ |
| Zdroj: | Physical review. B, Condensed matter and materials physics 90 (2014): 100401(R). doi:10.1103/PhysRevB.90.100401 info:cnr-pdr/source/autori:Mattia Crescioli (1,2); Paolo Politi (2,3); Ruggero Vaia (2,3)/titolo:Reentrant spin-flop transition in nanomagnets/doi:10.1103%2FPhysRevB.90.100401/rivista:Physical review. B, Condensed matter and materials physics/anno:2014/pagina_da:100401(R)/pagina_a:/intervallo_pagine:100401(R)/volume:90 4th Italian Conference on Magnetism, pp. [41] AO1-04, Bologna, 17-19/02/2015 info:cnr-pdr/source/autori:Ruggero Vaia (1,2); Mattia Crescioli (2,3); Paolo Politi (1,2)/congresso_nome:4th Italian Conference on Magnetism/congresso_luogo:Bologna/congresso_data:17-19%2F02%2F2015/anno:2015/pagina_da:[41] AO1-04/pagina_a:/intervallo_pagine:[41] AO1-04 |
| DOI: | 10.1103/PhysRevB.90.100401 |
| Popis: | Antiferromagnetic chains with an odd number of spins are known to undergo a transition from an antiparallel to a spin-flop configuration when subjected to an increasing magnetic field. We show that in the presence of an anisotropy favoring alignment perpendicular to the field, the spin-flop state appears for both weak and strong field, the antiparallel state appearing for intermediate fields. Both transitions are second order, the configuration varying continuously with the field intensity. Such re-entrant transition is robust with respect to quantum fluctuations and it might be observed in different types of nanomagnets. 5 pages. To be published as PRB-Rapid |
| Databáze: | OpenAIRE |
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