Calculation of Spin Tunneling Effects in the Presence of an Applied Magnetic Field

Details Calculation of Spin Tunneling Effects in the Presence of an Applied Magnetic Field Calculation of Spin Tunneling Effects in the Presence of an Applied Magnetic Field

1997-11-13

arxiv.org/abs/cond-mat/9711119v1

Physics

Condensed Matter

10 pages, LaTex, 4 figures included using graphicx

Scientific paper

10.1016/S0375-9601(98)00884-6

The tunneling splitting of the energy levels of a ferromagnetic particle in the presence of an applied magnetic field - previously derived only for the ground state with the path integral method - is obtained in a simple way from Schroedinger theory. The origin of the factors entering the result is clearly understood, in particular the effect of the asymmetry of the barriers of the potential. The method should appeal particularly to experimentalists searching for evidence of macroscopic spin tunneling.

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