Electron Correlation Driven Heavy-Fermion Formation in LiV2O4

Details Electron Correlation Driven Heavy-Fermion Formation in LiV2O4 Electron Correlation Driven Heavy-Fermion Formation in LiV2O4

2007-06-14

arxiv.org/abs/0706.2089v1

Phys. Rev. Lett. 99, 167402 (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.99.167402

Optical reflectivity measurements were performed on a single crystal of the d-electron heavy-fermion (HF) metal LiV2O4. The results evidence the highly incoherent character of the charge dynamics for all temperatures above T^* \approx 20 K. The spectral weight of the optical conductivity is redistributed over extremely broad energy scales (~ 5 eV) as the quantum coherence of the charge carriers is recovered. This wide redistribution is, in sharp contrast to f-electron Kondo lattice HF systems, characteristic of a metallic system close to a correlation driven insulating state. Our results thus reveal that strong electronic correlation effects dominate the low-energy charge dynamics and heavy quasiparticle formation in LiV2O4. We propose the geometrical frustration, which limits the extension of charge and spin ordering, as an additional key ingredient of the low-temperature heavy-fermion formation in this system.

Affiliated with

Also associated with

No associations

Rating

Electron Correlation Driven Heavy-Fermion Formation in LiV2O4 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Electron Correlation Driven Heavy-Fermion Formation in LiV2O4, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electron Correlation Driven Heavy-Fermion Formation in LiV2O4 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-331018