Abstract
We compare the magnetic and transport properties of the low-temperature metal in nonstoichiometric and compressed vanadium sesquioxide. Antiferromagnetic order is robust for the full range of vanadium vacancy concentrations, but it can be suppressed with modest hydrostatic pressures. The temperature-pressure phase diagram for V_2O_3 thus includes a new T=0 boundary between antiferromagnetic and paramagnetic metals. Furthermore, analysis of the T→0 diffusive metallic conductivity at the approach to the insulator-metal transition indicates a different role for correlations depending upon the means employed to effect the transition.
Keywords
SesquioxideAntiferromagnetismPhase boundaryVanadiumMaterials sciencePhase diagramParamagnetismMetalCondensed matter physicsPhase (matter)Hydrostatic pressurePhase transitionThermodynamicsPhysics
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Publication Info
- Year
- 1991
- Type
- article
- Volume
- 67
- Issue
- 24
- Pages
- 3440-3443
- Citations
- 78
- Access
- Closed
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Cite This
S. A. Carter,
T. F. Rosenbaum,
J. M. Honig
et al.
(1991).
New phase boundary in highly correlated, barely metallic<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">V</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">O</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>.
Physical Review Letters
, 67
(24)
, 3440-3443.
https://doi.org/10.1103/physrevlett.67.3440
Identifiers
- DOI
- 10.1103/physrevlett.67.3440