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zeige Details Dobrovitski, V. V.., Harmon, B. N.. Application of spin-dynamics methods to a study of magnetization tunneling in many-spin systems : The 7th joint MMM-intermag conference on magnetism and magnetic materials.
In: Journal of Applied Physics. - [S.l.], ISSN 1089-7550, Vol. 83, No. 11 (1998), p. 6599-6601
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1998
Spin-dynamics methods were applied for the numerical study of magnetic tunneling in many-spin systems. A numerical technique based on the instanton approach was developed and the zero-temperature case as well as finite-temperature effects were considered. We show that even for a two-spin system results can differ considerably from those of a corresponding reduced one-spin (or collective spin) system. Moreover, it is argued that such a difference can take place for real materials such as magnetic molecules (e.g., Mn12). Thus, consideration of the many-spin nature of some systems is shown to be important. © 1998 American Institute of Physics.
beteiligte Personen: Dobrovitski, V. V.. , Harmon, B. N..
Format: Elektronisch
Sprache: English
Erschienen: 1998.
Serie: AIP Digital Archive [Dig. Serial]
Schlagwörter:
URL: http://dx.doi.org/10.1063/1.367849

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