Quantum interference in small magnetic particles
1993; American Physical Society; Volume: 48; Issue: 14 Linguagem: Inglês
10.1103/physrevb.48.10548
ISSN1095-3795
AutoresEugene M. Chudnovsky, David P. DiVincenzo,
Tópico(s)Quantum and electron transport phenomena
ResumoWe 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.
Referência(s)