Quantum interference in small magnetic particles

1993; American Physical Society; Volume: 48; Issue: 14 Linguagem: Inglês

10.1103/physrevb.48.10548

ISSN

1095-3795

Autores

Eugene M. Chudnovsky, David P. DiVincenzo,

Tópico(s)

Quantum and electron transport phenomena

Resumo

We consider tunneling of a large spin between nonequivalent wells in the presence of the magnetic field. Using coherent spin states we show that the quenching of tunneling for a half-integer spin, which occurs at H=0, survives up to a reasonably large field. An experiment is proposed which may allow one to observe this quenching. Oscillation of the tunneling rate on the applied field is suggested.

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