Eur. Phys. J. B 40, 87-92 (2004)
https://doi.org/10.1140/epjb/e2004-00242-6

Calculation of tunnel splitting in a biaxial spin particle with an applied magnetic field

¹ Department of Physics, Fudan University, Shanghai 200433, P.R. China
² Department of Physics, The University of Hong Kong, Hong Kong, P.R. China
³ Department of Physics, Hubei University, Wuhan 430062, P.R. China
⁴ Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, P.R. China

Corresponding author: ^a binzhoucn@yahoo.com

Received: 18 January 2004
Revised: 12 May 2004
Published online: 3 August 2004

Abstract

The level splitting formulae of excited states as well as ground state for a biaxial spin particle in the presence of an applied magnetic field are obtained in a simple way from Schrödinger theory. Considering the boundary condition of the wave function, we obtain the tunneling splitting of the energy levels for half-integral spins as well as for the integral spins. The results obtained are compared with those previously derived by complicated pseudoparticle methods and numerical calculation values.