Nuclear-spin relaxation ofcorrelated with the spin-state transitions in
- 1 July 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 62 (1), 410-414
- https://doi.org/10.1103/physrevb.62.410
Abstract
The on single crystals of has been studied in order to investigate the spin-state transition through the nuclear-spin relaxation in this compound. Below the spin-lattice and spin-spin relaxation rates show a thermal-activation-type temperature dependence with an energy gap of ∼180 K. This value is close to the energy difference between the low spin state and the intermediate spin state predicted in the two-stage spin-state transition model with the intermediate spin state. The apparent spin-spin relaxation rates depend on the resonance peaks split due to the nuclear-electric-quadrupole interaction, which is explained by an indirect nuclear spin-spin interaction through the interacting paramagnetic electron spins. This observation is consistent with the ferromagnetic short-range correlation among the electron spins on ions confirmed by neutron-scattering experiments.
This publication has 17 references indexed in Scilit:
- Magnetic and Transport Properties of LaCo1-xNixO3-Comparison with La1-xSrxCoO3Journal of the Physics Society Japan, 1999
- Two Spin-State Transitions in LaCoO3Journal of the Physics Society Japan, 1998
- Spin-state transition and microscopic magnetic properties of LaCoO3Physica B: Condensed Matter, 1997
- Spin State and Hyperfine Interaction in LaCoO3: NMR and Magnetic Susceptibility StudiesJournal of the Physics Society Japan, 1995
- Hole-Doping Effect on the Spin State and Microscopic Magnetic Properties ofLa1-xSrxCoO3(0≤x≤0.5):59Coand139LaNMR MeasurementsJournal of the Physics Society Japan, 1995
- Neutron-scattering study of the spin-state transition and magnetic correlations in (x=0 and 0.08)Physical Review B, 1994
- Spin-Glass Behavior and Magnetic Phase Diagram of La1-xSrxCoO3( 0 ≤x≤0.5) Studied by Magnetization MeasurementsJournal of the Physics Society Japan, 1994
- Nuclear Spin-Lattice Relaxation in Hexagonal Transition Metals: TitaniumPhysical Review B, 1967
- Magnetic and electrical anomalies in LaCoO3Physica, 1964
- Neutron-diffraction study of the magnetic properties of perovskite-like compounds LaBO3Journal of Physics and Chemistry of Solids, 1957