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Related papers: Universal Heat Transport in Sr2RuO4

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The thermal conductivity of YBa_2Cu_3O_6.9 was measured at low temperatures in untwinned single crystals with concentrations of Zn impurities from 0 to 3% of Cu. A linear term kappa_0/T = 0.19 mW/K^2.cm is clearly resolved as T -> 0, and…

Superconductivity · Physics 2009-10-30 Louis Taillefer , Benoit Lussier , Robert Gagnon , Kamran Behnia , Herve Aubin

The thermal conductivity \kappa is measured in a series of La_{2-x}Sr_{x}CuO_{4} (x = 0 - 0.22) single crystals down to 90 mK to elucidate the evolution of the residual electronic thermal conductivity \kappa_{res}, which probes the extended…

Superconductivity · Physics 2009-11-07 J. Takeya , Yoichi Ando , Seiki Komiya , X. F. Sun

We derive the expression for the thermal conductivity \kappa in the low-temperature limit T \to 0 in d-wave superconductors, taking into account the presence of competing orders such as spin-density wave, is-pairing, etc.. The expression is…

Strongly Correlated Electrons · Physics 2015-06-24 V. P. Gusynin , V. A. Miransky

We have studied the thermal conductivity $\kappa$ on single crystalline samples of the antiferromagnetic monolayer cuprates R$_2$CuO$_4$ with R = La, Pr, Nd, Sm, Eu, and Gd. For a heat current within the CuO$_2$ planes, i.e. for…

Strongly Correlated Electrons · Physics 2009-11-11 K. Berggold , T. Lorenz , J. Baier , M. Kriener , D. Senff , H. Roth , A. Severing , H. Hartmann , A. Freimuth , S. Barilo , F. Nakamura

The first study of thermal conductivity, $\kappa$, in a quasi-two-dimensional organic superconductor of the $\kappa$-(BEDT-TTF)$_2$X family reveals features analogous to those already observed in the cuprates. The onset of superconductivity…

Superconductivity · Physics 2009-10-31 S. Belin , K. Behnia , A. Deluzet

The unconventional superconductor UTe$_2$ represents a rare example of spin-triplet pairing with potentially topologically protected quantum states. However, conflicting reports on its gap structure, particularly regarding point nodes, have…

Here we consider the universal heat conduction and the angular dependent thermal conductivity in the vortex state for a few nodal superconductors. We present the thermal conductivity as a function of impurity concentration and the angular…

Superconductivity · Physics 2009-11-10 H. Won , K. Maki

The thermal conductivity $\kappa$ of superconductor Ir$_{1-x}$Pt$_{x}$Te$_2$ ($x$ = 0.05) single crystal with strong spin-orbital coupling was measured down to 50 mK. The residual linear term $\kappa_0/T$ is negligible in zero magnetic…

Superconductivity · Physics 2015-06-11 S. Y. Zhou , X. L. Li , B. Y. Pan , X. Qiu , J. Pan , X. C. Hong , Z. Zhang , A. F. Fang , N. L. Wang , S. Y. Li

The angle dependence at different temperatures of the longitudinal thermal conductivity $\kappa_{xx}(\theta)$ in the presence of a planar magnetic field is presented. In order to study the influence of the gap symmetry on the thermal…

Superconductivity · Physics 2016-08-16 Roberto Ocaña , Pablo Esquinazi

We report resistivity $\rho$ and thermal conductivity $\kappa$ measurements on Ca$_3$Ir$_4$Sn$_{13}$ single crystals, in which superconductivity with $T_c \approx 7$ K was claimed to coexist with ferromagnetic spin-fluctuations. Among three…

Superconductivity · Physics 2015-06-04 S. Y. Zhou , H. Zhang , X. C. Hong , B. Y. Pan , X. Qiu , W. N. Dong , X. L. Li , S. Y. Li

Low temperature thermal conductivity, $\kappa$, of optimally-doped Bi2212 was studied before and after the introduction of point defects by electron irradiation. The amplitude of the linear component of $\kappa$ remains unchanged,…

Superconductivity · Physics 2009-10-31 S. Nakamae , K. Behnia , L. Balicas , F. Rullier-Albenque , H. Berger , T. Tamegai

The measurements (Phys.Rev.B {\bf 100}, 220504(R) (2019)) do not detect noticeable thermal conductivity in superconducting UTe$_2$ in the T=0 limit. At the same time the same crystals exhibit a large residual density of states comparable…

Superconductivity · Physics 2022-06-23 V. P. Mineev

The magneto-thermal conductivity kappa is calculated for the vortex state of UPd_2Al_3 by assuming horizontal gap nodes. The Green's function method we employed takes into account the effects of supercurrent flow and Andreev scattering on…

Superconductivity · Physics 2009-11-11 L. Tewordt , D. Fay

We have measured the temperature dependences of the thermal conductivity of Ba$_2$Cu$_{3-x}M_x$O$_4$Cl$_2$ ($M$ = Pd, Ni, Co; $x$ = 0, 0.03) single crystals including two-dimensional (2D) Cu$_3$O$_4$ planes consisting of a strong 2D spin…

Strongly Correlated Electrons · Physics 2021-12-17 Masumi Ohno , Takayuki Kawamata , Megumi Akoshima , Yoji Koike

A key unexplained feature of cuprate superconductors is the upturn in their normal state electrical resistivity $\rho(T)$ seen at low temperature inside the pseudogap phase. We examined this issue via measurements of the thermal…

We investigated the superconducting gap structure of SrNi$_2$P$_{2}$ ($T_c$=1.4 K) via low-temperature magneto-thermal conductivity $\kappa(T,H)$ measurements. Zero field thermal conductivity $\kappa$ decreases exponentially $\kappa…

We calculate the thermal conductivity kappa in magnetic fields near H_c2 for spin-triplet superconducting states with line nodes vertical and horizontal relative to the RuO_2-planes. The method for calculating the Green's functions takes…

Superconductivity · Physics 2009-11-07 L. Tewordt , D. Fay

We calculate the density of states $N$ and the the thermal conductivity $\kappa $ in layered superconductors for rotating in-plane magnetic field by using approximate analytical expressions for Abrikosov's vortex lattice state. For a gap…

Superconductivity · Physics 2007-05-23 L. Tewordt , D. Fay

The in-plane thermal conductivity of iron-based superconductor RbFe$_2$As$_2$ single crystal ($T_c \approx$ 2.1 K) was measured down to 100 mK. In zero field, the observation of a significant residual linear term $\kappa_0/T$ = 0.65 mW…

Superconductivity · Physics 2015-06-18 Z. Zhang , A. F. Wang , X. C. Hong , J. Zhang , B. Y. Pan , J. Pan , Y. Xu , X. G. Luo , X. H. Chen , S. Y. Li

Heat transport in the cuprate superconductors YBa$_2$Cu$_3$O$_{y}$ and La$_{2-x}$Sr$_x$CuO$_4$ was measured at low temperatures as a function of doping. A residual linear term kappa_{0}/T is observed throughout the superconducting region…

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