Neutron-diffraction evidence for the ferrimagnetic ground state of a molecule-based magnet with weakly coupled sublattices

Randy S. Fishman, Javier Campo, Thomas E. Vos, Joel S. Miller

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The diruthenium compound [Ru2(O2CMe) 4]3[Cr(CN)6] contains two weakly coupled, ferrimagnetically ordered sublattices occupying the same volume. Due to the weak, antiferromagnetic dipolar interaction Kc ≈ 5 × 10 -3 meV between sublattices, a small magnetic field Hc ∼ KcB ≈ 800 Oe aligns the sublattice moments. Powder neutron-diffraction measurements on a deuterated sample confirm an earlier prediction that the sublattice moments are restricted by the anisotropy of the diruthenium 'paddle-wheels' to the cubic diagonals. Those measurements also suggest that quantum corrections to the ground state are significant.

Original languageEnglish
Article number496001
JournalJournal of Physics Condensed Matter
Volume24
Issue number49
DOIs
StatePublished - Dec 12 2012

Funding

FundersFunder number
National Science Foundation1063630

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