Long-Range Ferromagnetic Dipolar Ordering of High-Spin Molecular Clusters

2002/12/16 by Andrea Morello, A. Morello, F. L. Mettes +11 · 5 citations
Materials Science · Physics and Astronomy · #Lanthanide and Transition Metal Complexes #Magnetism in coordination complexes #Organic and Molecular Conductors Research #cond-mat.mes-hall #cond-mat.mtrl-sci

paper · pdf · doi:10.1103/physrevlett.90.017206

published as Phys. Rev. Lett. 90, 017206 (2003) · 4 pages, 4 .eps figures; accepted for publication in Phys. Rev. Lett

arxiv created 2002/12/16 · openalex publication_date 2003/01/10 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

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(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 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.

Citations

• Ordering of dipolar Ising crystals

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