Pressure-driven high to low spin transition in the bimetallic quantum magnet [Ru2(O2CMe)4]3[Cr(CN)6]

Journal Article · Wed Jan 01 00:00:00 EST 2014 · Physical Review B

DOI:https://doi.org/10.1103/PhysRevB.90.104301· OSTI ID:1154845

O'Neal, K. R. ^[1]; Liu, Z. ^[2]; Miller, Joel S. ^[3]; Fishman, Randy Scott ^[4]; Musfeldt, J. L. ^[1]

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1. University of Tennessee, Knoxville (UTK)
2. Carnegie Institution of Washington
3. University of Utah
4. ORNL

Synchrotron-based infrared and Raman spectroscopies were brought together with diamond anvil cell techniques and an analysis of the magnetic properties to investigate the pressure-induced high low spin transition in [Ru2(O2CMe)4]3[Cr(CN)6]. The extended nature of the diruthenium wavefunction combined with coupling to chromium-related local lattice distortions changes the relative energies of the and orbitals and drives the high low spin transition on the mixed-valence diruthenium complex. This is a rare example of an externally controlled metamagnetic transition in which both spin-orbit and spin-lattice interactions contribute to the mechanism.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1154845
• Journal Information: Physical Review B, Vol. 90, Issue 10; ISSN 1098--0121
• Country of Publication: United States
• Language: English