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APS » Journals » Phys. Rev. Lett. » Volume 73 » Issue 11
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Phys. Rev. Lett. 73, 1529–1532 (1994)

Observation of the Gap and Kinetic Energy in a Correlated Insulator

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G. A. Thomas, D. H. Rapkine, S. A. Carter, and A. J. Millis
AT&T Bell Laboratories, Murray Hill, New Jersey 07974-0636

T. F. Rosenbaum
Physics Department and the James Franck Institute, The University of Chicago, Chicago, Illinois 60637

P. Metcalf and J. M. Honig
Department of Chemistry, Purdue University, West Lafayette, Indiana 47907

Received 28 April 1994; published in the issue dated 12 September 1994

Fundamental energies are determined optically for an ensemble of correlated electrons in an antiferromagnetic insulator, V2O3. The observed variation of the energy gap and the kinetic energy are compared quantitatively to some approximate solutions of the Hubbard Hamiltonian.

© 1994 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.73.1529
DOI:
10.1103/PhysRevLett.73.1529
PACS:
71.27.+a, 71.30.+h, 78.30.Hv
 
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