Phase interference of spin tunneling in an arbitrarily directed magnetic field

Details Phase interference of spin tunneling in an arbitrarily directed magnetic field Phase interference of spin tunneling in an arbitrarily directed magnetic field

2000-01-25

arxiv.org/abs/cond-mat/0001355v2

Physics

Condensed Matter

Statistical Mechanics

15 pages, 3 figures, rejected by Phys. Rev. Lett., and accepted by Phys. Rev. B (Nov. 2000)

Scientific paper

We present an exact analytic study on the topological phase interference effect in resonant quantum tunneling of the magnetization between degenerate excited levels for biaxial ferromagnets in an arbitrarily directed magnetic field. We show that the topological phase interference effect depends on the orientation of the field distinctly. The transition from classical to quantum behavior is also discussed.

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