Grüneisen ratio at the Kondo breakdown quantum critical point

Details Grüneisen ratio at the Kondo breakdown quantum critical point Grüneisen ratio at the Kondo breakdown quantum critical point

2008-08-28

arxiv.org/abs/0808.3908v2

Phys. Rev. Lett. 101, 246403 (2008)

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1103/PhysRevLett.101.246403

We show that the scenario of multi-scale Kondo breakdown quantum critical point (QCP) gives rise to a divergent Gr\"uneisen ratio with an anomalous exponent 0.7. In particular, we fit the experimental data of $YbRh_{2}(Si_{0.95}Ge_{0.05})_{2}$ for specific heat, thermal expansion, and Gr\"uneisen ratio based on our simple analytic expressions. A reasonable agreement between the experiment and theory is found for the temperature range between 0.4 K and 10 K. We discuss how the Gr\"uneisen ratio is a key measurement to discriminate between the Kondo breakdown and spin-density wave theories.

Affiliated with

Also associated with

No associations

Rating

Grüneisen ratio at the Kondo breakdown quantum critical point 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 Grüneisen ratio at the Kondo breakdown quantum critical point, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Grüneisen ratio at the Kondo breakdown quantum critical point will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-327408