Phase interference of spin tunneling in an arbitrarily directed magnetic field
نویسندگان
چکیده
منابع مشابه
Quantum-classical phase transition of the escape rate in a biaxial spin system with an arbitrarily directed magnetic field
(February 1, 2008) We investigate the escape rate of a biaxial spin particle with an arbitrarily directed magnetic field in the easy plane, described by Hamiltonian H = −AS2 z − BS2 x − HxSx − HzSz, (A > B > 0). We derive an effective particle potential by using the method of particle mapping. With the help of the criterion for the presence of a first-order quantum-classical transition of the e...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2000
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.62.11661