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.
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页数：4
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