Reduction of the Ordered Magnetic Moment by Quantum Fluctuation in the Antiferromagnetic Spin-\(\frac{5}{2}\) Dimer Compound FeVMoO7
- 15 March 2019
- journal article
- research article
- Published by Physical Society of Japan in Journal of the Physics Society Japan
- Vol. 88 (3)
- https://doi.org/10.7566/jpsj.88.034711
Abstract
We investigated the magnetism of FeVMoO7 by performing magnetization, specific heat, electron spin resonance, and neutron diffraction experiments. We observed an antiferromagnetically ordered state below T-N = 10.8 K. We consider that the probable spin model is an interacting antiferromagnetic spin-5/2 dimer model where spin dimers are connected by interdimer interactions. The intradimer interaction was evaluated to be J = 10.5 +/- 0.5 K. The magnitude of ordered magnetic moments is 4.00(7)mu(B) at 4K. The magnitude at 0 K is considered to be smaller than the classical value 4.95;mu(B )(g = 1.98). We confirmed a reduction of ordered magnetic moments by quantum fluctuation in high-spin (spin-5/2) clusters as known in high-spin chains.Keywords
Funding Information
- Japan Society for the Promotion of Science (15K05150, 18K03551)
This publication has 28 references indexed in Scilit:
- Magnetic excitations in the spin-antiferromagnetic trimer substance SrMnPOPhysical Review B, 2011
- Spiral magnetic structure in spin-frustrated trimerized chains in SrMnPOPhysical Review B, 2011
- High-field magnetization ofexhibiting a quantum-mechanical magnetization plateau and classical magnetic long-range orderPhysical Review B, 2009
- Four Isomorphous Phosphates AM3P4O14 (A = Sr, Ba; M = Co, Mn) with Antiferromagnetic−Antiferromagnetic−Ferromagnetic Trimerized Chains, Showing 1/3 Quantum Magnetization Plateaus Only in the Manganese(II) SystemInorganic Chemistry, 2008
- Effects of substitution of Zn for Cu in the spin-Peierls cuprate,: The suppression of the spin-Peierls transition and the occurrence of a new spin-glass statePhysical Review Letters, 1993
- Magnetic phase diagram of the spin-Peierls cupratePhysical Review B, 1993
- Observation of the spin-Peierls transition in linear(spin-1/2) chains in an inorganic compoundPhysical Review Letters, 1993
- Valence bond ground states in isotropic quantum antiferromagnetsCommunications in Mathematical Physics, 1988
- Nonlinear Field Theory of Large-Spin Heisenberg Antiferromagnets: Semiclassically Quantized Solitons of the One-Dimensional Easy-Axis Néel StatePhysical Review Letters, 1983
- Continuum dynamics of the 1-D Heisenberg antiferromagnet: Identification with the O(3) nonlinear sigma modelPhysics Letters A, 1983