Long-range ferromagnetic dipolar ordering of high-spin molecular clusters -: art. no. 017206

被引：50

作者：

Morello, A

Mettes, FL

Luis, F

Fernández, JF

Krzystek, J

Aromí, G

Christou, G

de Jongh, LJ

机构：

[1] Leiden Univ, Leiden Inst Chem, Kamerlingh Onnes Lab, NL-2300 RA Leiden, Netherlands

[2] Univ Zaragoza, CSIC, Inst Ciencia Mat Aragon, E-50009 Zaragoza, Spain

[3] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

[4] Leiden Univ, Leiden Inst Chem, Gorlaeus Labs, NL-2300 RA Leiden, Netherlands

[5] Univ Florida, Dept Chem, Gainesville, FL 32611 USA

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.90.017206

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first example of a transition to long-range magnetic order in a purely dipolarly interacting molecular magnet. For the magnetic cluster compound Mn6O4Br4(Et(2)dbm)(6), the anisotropy experienced by the total spin S=12 of each cluster is so small that spin-lattice relaxation remains fast down to the lowest temperatures, thus enabling dipolar order to occur within experimental times at T-c=0.16 K. In high magnetic fields, the relaxation rate becomes drastically reduced and the interplay between nuclear- and electron-spin lattice relaxation is revealed.

引用

页数：4

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