<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi>LiV</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow><mrow><msub><mrow><mi>O</mi></mrow><mrow><mn>4</mn></mrow></msub></mrow></math></span>: A Heavy Fermion Transition Metal Oxide

S. Kondo; D. C. Johnston; C. A. Swenson; F. Borsa; A. V. Mahajan; L. L. Miller; T. Gu; A. I. Goldman; M. B. Maple; D. A. Gajewski; E. J. Freeman; N. R. Dilley; R. P. Dickey; J. Merrin; K. Kojima; G. M. Luke; Y. J. Uemura; O. Chmaissem; J. D. Jorgensen

doi:10.1103/PhysRevLett.78.3729

${LiV}_{2} O_{4}$ : A Heavy Fermion Transition Metal Oxide

S. Kondo, D. C. Johnston, C. A. Swenson, F. Borsa, A. V. Mahajan, L. L. Miller, T. Gu, A. I. Goldman, M. B. Maple, D. A. Gajewski, E. J. Freeman, N. R. Dilley, R. P. Dickey, J. Merrin, K. Kojima, G. M. Luke, Y. J. Uemura, O. Chmaissem, and J. D. Jorgensen

Phys. Rev. Lett. 78, 3729 – Published 12 May 1997

Abstract

A crossover with decreasing temperature $T$ from localized moment magnetism to heavy Fermi liquid behavior is reported for the metallic compound ${LiV}_{2} O_{4}$ with the fcc normal-spinel structure. At $T = 1 K$ , the electronic heat capacity coefficient $γ \approx 0.42 J / mol K^{2}$ 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 0.02 K. Superconductivity was not observed above 0.01 K.

Received 23 December 1996

DOI:https://doi.org/10.1103/PhysRevLett.78.3729

Authors & Affiliations

S. Kondo¹, D. C. Johnston¹, C. A. Swenson¹, F. Borsa¹, A. V. Mahajan¹, L. L. Miller¹, T. Gu¹, A. I. Goldman¹, M. B. Maple², D. A. Gajewski², E. J. Freeman², N. R. Dilley², R. P. Dickey², J. Merrin³, K. Kojima³, G. M. Luke³, Y. J. Uemura³, O. Chmaissem^4,5, and J. D. Jorgensen⁵

¹Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011
²Department of Physics and Institute for Pure and Applied Physical Sciences, University of California at San Diego, La Jolla, California 92093
³Physics Department, Columbia University, New York, New York 10027
⁴Science and Technology Center for Superconductivity, Argonne National Laboratory, Argonne, Illinois 60439
⁵Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439