LiV2O4 spinel as a heavy-mass fermi liquid: anomalous transport and role of geometrical frustration

Phys Rev Lett. 2000 Jul 31;85(5):1052-5. doi: 10.1103/PhysRevLett.85.1052.


Transport and specific heat measurements on hydrothermally grown single crystals reveal the formation of a heavy-mass Fermi liquid in the LiV2O4 spinel, below a coherence temperature of T* = 20-30 K. A few observations which illustrate the uniqueness of this spinel are discussed in connection with the origin of the heavy mass, such as the anomalous absence of resistivity saturation above T* and the close proximity to a spin glass phase where the influence of the magnetic frustration is evident.