LiV{sub 2}O{sub 4}: A Heavy Fermion Transition Metal Oxide
Journal Article
·
· Physical Review Letters
- Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)
- Department of Physics and Institute for Pure and Applied Physical Sciences, University of California at San Diego, La Jolla, California 92093 (United States)
- Physics Department, Columbia University, New York, New York 10027 (United States)
- Science and Technology Center for Superconductivity, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
A crossover with decreasing temperature T from localized moment magnetism to heavy Fermi liquid behavior is reported for the metallic compound LiV{sub 2}O{sub 4} with the fcc normal-spinel structure. At T=1K, the electronic heat capacity coefficient {gamma}{approx}0.42J/molK{sup 2} is exceptionally large for a transition metal compound, the Wilson ratio {approx}1.7, and the Korringa ratio {approx}0.7. Our sample with the lowest level of paramagnetic defects showed no static magnetic order above 0.02K. Superconductivity was not observed above 0.01K. {copyright} {ital 1997} {ital The American Physical Society}
- DOE Contract Number:
- FG03-86ER45230; W-31109-ENG-38; W-7405-ENG-82
- OSTI ID:
- 496833
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 19 Vol. 78; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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