Observation of the gap and kinetic energy in a correlated insulator

Observation of the gap and kinetic energy in a correlated insulator

Fundamental energies are determined optically for an ensemble of correlated electrons in an antiferromagnetic insulator, V[sub 2]O[sub 3]. The observed variation of the energy gap and the kinetic energy are compared quantitatively to some approximate solutions of the Hubbard Hamiltonian.

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Bibliographische Detailangaben
Veröffentlicht in:Physical review letters 1994-09, Vol.73 (11), p.1529-1532
Hauptverfasser: Thomas, GA, Rapkine, DH, Carter, SA, Millis, AJ, Rosenbaum, TF, Metcalf, P, Honig, JM
Format: Artikel
Sprache:eng
Schlagworte:
360204 - Ceramics, Cermets, & Refractories- Physical Properties
ANTIFERROMAGNETIC MATERIALS
CHALCOGENIDES
CRYSTAL MODELS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY GAP
HUBBARD MODEL
MAGNETIC MATERIALS
MATERIALS
MATERIALS SCIENCE
MATHEMATICAL MODELS
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
VANADIUM OXIDES
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Zusammenfassung:Fundamental energies are determined optically for an ensemble of correlated electrons in an antiferromagnetic insulator, V[sub 2]O[sub 3]. The observed variation of the energy gap and the kinetic energy are compared quantitatively to some approximate solutions of the Hubbard Hamiltonian.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.73.1529