Butterfly hysteresis loop and dissipative spin reversal in the S = 1/2, V15 molecular complex
Phys Rev Lett
; 84(15): 3454-7, 2000 Apr 10.
Article
en En
| MEDLINE
| ID: mdl-11019113
ABSTRACT
Time resolved magnetization measurements have been performed on a spin 1/2 molecular complex, so-called V15. Despite the absence of a barrier, magnetic hysteresis is observed over a time scale of several seconds. A detailed analysis in terms of a dissipative two-level model is given, in which fluctuations and splittings are of the same energy. Spin-phonon coupling leads to long relaxation times and to a particular "butterfly" hysteresis loop.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Año:
2000
Tipo del documento:
Article
País de afiliación:
Francia