Observation of the Gap and Kinetic Energy in a Correlated Insulator
- 12 September 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 73 (11) , 1529-1532
- https://doi.org/10.1103/physrevlett.73.1529
Abstract
Fundamental energies are determined optically for an ensemble of correlated electrons in an antiferromagnetic insulator, . The observed variation of the energy gap and the kinetic energy are compared quantitatively to some approximate solutions of the Hubbard Hamiltonian.
Keywords
This publication has 34 references indexed in Scilit:
- Physical properties of the half-filled Hubbard model in infinite dimensionsPhysical Review B, 1993
- Mott-Hubbard transition in infinite dimensionsPhysical Review Letters, 1992
- Numerical solution of thed=∞ Hubbard model: Evidence for a Mott transitionPhysical Review Letters, 1992
- Hubbard model in infinite dimensionsPhysical Review B, 1992
- Ground-state energy of thed=1,2,3 dimensional Hubbard model in the weak-coupling limitPhysical Review B, 1989
- Correlated Lattice Fermions inDimensionsPhysical Review Letters, 1989
- Electron correlations in narrow energy bands III. An improved solutionProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1964
- Electron correlations in narrow energy bandsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1963
- The transition to the metallic statePhilosophical Magazine, 1961
- Magnetic Effects and the Hartree-Fock EquationPhysical Review B, 1951