Quantum phase transitions out of the heavy Fermi liquid

Details Quantum phase transitions out of the heavy Fermi liquid Quantum phase transitions out of the heavy Fermi liquid

2004-09-01

arxiv.org/abs/cond-mat/0409033v2

Physica B 359-361, 9 (2005)

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages, 5 figures, proceedings of SCES '04 Karlsruhe; (v2) added ref

Scientific paper

10.1016/j.physb.2004.12.041

We review recent work on the instability of the heavy Fermi liquid state (FL) of the Kondo lattice towards a magnetic metal in which the local moments are not part of the Fermi sea. Using insights drawn from the theory of deconfined quantum criticality of insulating antiferromagnets, we discuss the possibility of a direct second order transition between the heavy Fermi liquid and such a magnetic metal. We suggest the presence of at least two distinct diverging time scales - the shorter one describes fluctuations associated with the reconstruction of the Fermi surface, while a longer one describes fluctuations of the magnetic order parameter. The intermediate time scale physics on the magnetic side is suggested to be that of a novel fractionalized Fermi liquid (FL*) state with deconfined neutral S=1/2 excitations. This could ultimately devolve into the magnetic phase with conventional order at one of the larger time scales. Experimental implications for this scenario are noted.

Affiliated with

Also associated with

No associations

Rating

Quantum phase transitions out of the heavy Fermi liquid 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 Quantum phase transitions out of the heavy Fermi liquid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum phase transitions out of the heavy Fermi liquid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-171699