Mixed quantum-thermal relaxation in Mn12 acetate molecules

被引：150

作者：

Fort, A

Rettori, A

Villain, J

Gatteschi, D

Sessoli, R

机构：

[1] Univ Florence, Dipartimento Fis, I-50125 Florence, Italy

[2] Ist Nazl Fis Nucl, I-50125 Florence, Italy

[3] CEA, Dept Rech Fondamentale Mat Condensee, F-38054 Grenoble, France

[4] CNRS, Ctr Rech Tres Basses Temp, F-38042 Grenoble, France

[5] Univ Florence, Dipartimento Chim, I-50144 Florence, Italy

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.80.612

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a theoretical and experimental study of the magnetic field dependence of the relaxation of the Mn12O12 acetate compound. For T greater than or equal to 2 K the molecule which starts from the by means of thermal mechanism, while the remaining barrier is crossed by tunneling. This mired quantum-thermal mechanism shows a critical dependence of the relaxation time with respect to the external magnetic field.

引用

页码：612 / 615

页数：4

共 16 条

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