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zeige Details Al-Saqer, M.., Dobrovitski, V. V.., ... Many-spin effects and tunneling properties of magnetic molecules
In: Journal of Applied Physics. - [S.l.], ISSN 1089-7550, Vol. 87, No. 9 (2000), p. 6268-6270
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2000
Spin tunneling in molecular magnets has attracted much attention, however theoretical considerations of this phenomenon up to now have not taken into account the many-spin nature of molecular magnets. We present, to our knowledge, the first successful attempt of a realistic calculation of tunneling splittings for Mn12 molecules, thus achieving a quantitatively accurate many-spin description of a real molecular magnet in the energy interval ranging from about 100 K down to 10−12 K. Comparison with the results of the standard single-spin model shows that many-spin effects affect the tunneling splittings considerably. The values of ground state splitting given by single-spin and many-spin models differ from each other by a factor of 5. © 2000 American Institute of Physics.
beteiligte Personen: Al-Saqer, M.. , Dobrovitski, V. V.. , Harmon, B. N.. , Katsnelson, M. I..
Format: Elektronisch
Sprache: English
Erschienen: 2000.
Serie: AIP Digital Archive [Dig. Serial]
Schlagwörter:
URL: http://dx.doi.org/10.1063/1.372675

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