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Magnetization quantum tunneling at excited levels for a biaxial spin system in an arbitrarily directed magnetic field

Rong Lu·Su-Peng Kou·Jia-Lin Zhu·Lee Chang·Bing-Lin Gu
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Abstract

The quantum tunneling of the magnetization vector between excited levels are studied theoretically in single-domain ferromagnetic nanoparticles with biaxial crystal symmetry placed in an external magnetic field at an arbitarily directed angle in the ZX plane. The temperature dependences of the tunneling frequency and the decay rate are clearly shown for each case.

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Rong Lu, Su-Peng Kou, Jia-Lin Zhu, Lee Chang, Bing-Lin Gu. 2000-05-25. Magnetization quantum tunneling at excited levels for a biaxial spin system in an arbitrarily directed magnetic field. https://doi.org/10.1103/physrevb.62.3346

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