Thermal conductivity in the doped two-leg ladder antiferromagnet Sr$_{14-x}$Ca$_{x}$Cu$_{24}$O$_{41}$

Details Thermal conductivity in the doped two-leg ladder antiferromagnet Sr$_{14-x}$Ca$_{x}$Cu$_{24}$O$_{41}$ Thermal conductivity in the doped two-leg ladder antiferromagnet Sr$_{14-x}$Ca$_{x}$Cu$_{24}$O$_{41}$

2004-06-04

arxiv.org/abs/cond-mat/0406115v2

Phys. Lett. A 335, 477 (2005)

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages, 2 figures, added new references and discussions, accepted for publication in Phys. Lett. A

Scientific paper

10.1016/j.physleta.2004.12.051

Within the t-J model, the heat transport of the doped two-leg ladder material Sr$_{14-x}$Ca$_{x}$Cu$_{24}$O$_{41}$ is studied in the doped regime where superconductivity appears under pressure in low temperatures. The energy dependence of the thermal conductivity $\kappa_{c}(\omega)$ shows a low-energy peak, while the temperature dependence of the thermal conductivity $\kappa_{c}(T)$ is characterized by a broad band. In particular, $\kappa_{c}(T)$ increases monotonously with increasing temperature at low temperatures $T<0.05J$, and is weakly temperature dependent in the temperature range $0.05J0.1J$, in qualitative agreement with experiments. Our result also shows that although both dressed holons and spinons are responsible for the thermal conductivity, the contribution from the dressed spinons dominates the heat transport of Sr$_{14-x}$Ca$_{x}$Cu$_{24}$O$_{41}$.

Affiliated with

Also associated with

No associations

Rating

Thermal conductivity in the doped two-leg ladder antiferromagnet Sr$_{14-x}$Ca$_{x}$Cu$_{24}$O$_{41}$ 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 Thermal conductivity in the doped two-leg ladder antiferromagnet Sr$_{14-x}$Ca$_{x}$Cu$_{24}$O$_{41}$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal conductivity in the doped two-leg ladder antiferromagnet Sr$_{14-x}$Ca$_{x}$Cu$_{24}$O$_{41}$ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-59221