On the first-order phase transitions in a bistable large-spin systems (Mn12Ac and others)

Details On the first-order phase transitions in a bistable large-spin systems (Mn12Ac and others) On the first-order phase transitions in a bistable large-spin systems (Mn12Ac and others)

1998-07-18

arxiv.org/abs/cond-mat/9807262v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 5 figures

Scientific paper

We have shown that recent report concerning the first-order phase transitions in the large-spin systems is inaccurate. A kinetic numerical method for making calculations of the transition rate in a bistable system as a function of temperature has been evolved and a new critical value of the transition field (h=0.891) has been found. A physical mechanism caused transition from quantum to classical behavior has been discussed.

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