Effects of a transverse magnetic field on spin tunneling in Mn12 acetate: Evidence of internal transverse anisotropy

被引：0

作者：

Yoon, SW ^{[1
]}

Yoon, S ^{[1
]}

Suh, BJ

Jeon, WS

Kim, YJ

Jung, DY

机构：

[1] Catholic Univ Korea, Dept Phys, Puchon 420743, South Korea

[2] Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2005年 / 46卷 / 02期

关键词：

molecular magnet; spin tunneling; quantum tunneling of magnetization;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present magnetization measurements for a single crystal of Mn12 acetate. The effects of a transverse magnetic field H. on the magnetization relaxation were investigated by measuring the angle dependence of the magnetization relaxation. The effect of H. on thermally activated relaxation of the magnetization is well explained by a classical reduction of the energy barrier. By introducing an effective transverse anisotropy E, we could also explain quantitatively the dependence on H. of the relaxation associated with resonant spin tunneling.

引用

页码：498 / 502

页数：5

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