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Magnetism of the antiferromagnetic spin- 32 dimer compound CrVMoO7 having an antiferromagnetically ordered state
- Source :
- Physical Review B. 95
- Publication Year :
- 2017
- Publisher :
- American Physical Society (APS), 2017.
-
Abstract
- We measured magnetization, specific heat, electron spin resonance, neutron diffraction, and inelastic neutron scattering of ${\mathrm{CrVMoO}}_{7}$ powder. An antiferromagnetically ordered state appears below ${T}_{\mathrm{N}}=26.5\ifmmode\pm\else\textpm\fi{}0.8$ K. We consider that the probable spin model for ${\mathrm{CrVMoO}}_{7}$ is an interacting antiferromagnetic spin-$\frac{3}{2}$ dimer model. We evaluated the intradimer interaction $J$ to be $25\ifmmode\pm\else\textpm\fi{}1$ K and the effective interdimer interaction ${J}_{\mathrm{eff}}$ to be $8.8\ifmmode\pm\else\textpm\fi{}1$ K. ${\mathrm{CrVMoO}}_{7}$ 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 $0.73(2){\ensuremath{\mu}}_{\mathrm{B}}$. It is much smaller than a classical value $\ensuremath{\sim}3{\ensuremath{\mu}}_{\mathrm{B}}$. Longitudinal-mode magnetic excitations may be observable in single crystalline ${\mathrm{CrVMoO}}_{7}$.
- Subjects :
- Physics
Condensed matter physics
Magnetism
Neutron diffraction
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
Inelastic neutron scattering
law.invention
Magnetization
law
0103 physical sciences
Spin model
Antiferromagnetism
Condensed Matter::Strongly Correlated Electrons
010306 general physics
0210 nano-technology
Electron paramagnetic resonance
Spin-½
Subjects
Details
- ISSN :
- 24699969 and 24699950
- Volume :
- 95
- Database :
- OpenAIRE
- Journal :
- Physical Review B
- Accession number :
- edsair.doi...........4f58d4f728b72d976549ef0af9af9676