Ground-state tunneling in Mn-12-acetate

Article

关键词: MN-12 ACETATE;    NEUTRON-SCATTERING;    MOLECULAR MAGNETS;    QUANTUM;    MAGNETIZATION;    NANOMAGNETS;    HYSTERESIS;    RELAXATION;    CROSSOVER;    CRYSTALS;   

DOI  :  10.1103/PhysRevB.65.212401

来源: SCIE

【 摘 要 】

We report Hall sensor measurements of the magnetic relaxation of Mn-12-acetate as a function of magnetic field applied along the easy axis of magnetization for a series of closely spaced temperatures between 0.24 K and 1.9 K. The occasional absence (or suppression) of ground-state tunneling under conditions where one would expect it to be readily observable is attributed to the presence of a broad distribution of tunnel splittings.

【 授权许可】

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