Publication
Reduction of the Ordered Magnetic Moment by Quantum Fluctuation in the Antiferromagnetic Spin-5 2 Dimer Compound FeVMoO7
MDR Open Deposited
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 4 K. 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.
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- 18/02/2019
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- 18/02/2019
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- 02/07/2021