Nonlinear magnetic susceptibility of molecular magnets: Tunneling of high-spin molecules

被引：26

作者：

Vernier, N ^{[1
]}

Bellessa, G ^{[1
]}

Mallah, T ^{[1
]}

Verdaguer, M ^{[1
]}

机构：

[1] UNIV PARIS 06,CHIM MET TRANSIT LAB,F-75252 PARIS,FRANCE

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.56.75

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic susceptibility of high-spin molecules CrNi6 (S=15/2) and CrMn6 (S=27/2) has been measured at high frequency (680 MHz), in a magnetic field (up to 5 T), and at low temperature (down to 18 mK). A large decrease of the imaginary part of the susceptibility with increasing electromagnetic power is observed. This nonlinear effect is attributed to tunneling of the high-spin molecules between the two states \+/-S] of the ground doublet across the anisotropy-energy barrier.

引用

页码：75 / 78

页数：4

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