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29 March 2024
 
  » arxiv » cond-mat/0212372

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Long-range ferromagnetic dipolar ordering of high-spin molecular clusters
A. Morello ; F. L. Mettes ; F. Luis ; J. F. Fernandez ; J. Krzystek ; G. Aromi ; G. Christou ; L. J. de Jongh ;
Date 16 Dec 2002
Subject Mesoscopic Systems and Quantum Hall Effect; Materials Science | cond-mat.mes-hall cond-mat.mtrl-sci
AbstractWe 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(Et2dbm)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 Tc = 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.
Source arXiv, cond-mat/0212372
Other source [GID 67536] pmid12570647
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