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We measured magnetization, specific heat, electron spin resonance, neutron diffraction, and inelastic neutron scattering of CrVMoO7 powder. An antiferromagnetically ordered state appears below TN = 26.5 ± 0.8 K. We consider that the probable spin model for CrVMoO7 is an interacting antiferromagnetic spin- 3/2 dimer model. We evaluated the intradimer interaction J to be 25 ± 1 K and the effective interdimer interaction Jeff to be 8.8 ±1 K. CrVMoO7 is a rare spin dimer compound that shows an antiferromagnetically ordered state at atmospheric pressure and zero magnetic field. The magnitude of ordered moments is 0.73(2)μB. It is much smaller than a classical value ∼3μB. Longitudinal-mode magnetic excitations may be observable in single crystalline CrVMoO7.

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Keyword: magnetism, antiferromagnetically ordered state, neutron scattering, spin-3/2 dimer, magnetization, CrVMoO7

Date published: 2017-04-24

Publisher: American Physical Society

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Manuscript type: Author's version (Submitted manuscript)

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First published URL: https://doi.org/10.1103/PhysRevB.95.144429

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Updated at: 2024-01-05 22:13:38 +0900

Published on MDR: 2021-08-14 03:54:58 +0900