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Related papers: Thermal Conductivity of the Quasi One-Dimensional …

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We study the spin and thermal conductivity of spin-1/2 ladders at finite temperature. This is relevant for experiments with quantum magnets. Using a state-of-the-art density matrix renormalization group algorithm, we compute the current…

Strongly Correlated Electrons · Physics 2015-06-23 C. Karrasch , D. M. Kennes , F. Heidrich-Meisner

We report a study of magnetism and magnetic transitions of hexagonal ErMnO$_3$ single crystals by magnetization, specific heat and heat transport measurements. Magnetization data show that the $c$-axis magnetic field induces three magnetic…

Materials Science · Physics 2017-11-21 J. D. Song. C. Fan , Z. Y. Zhao , F. B. Zhang , J. Y. Zhao , X. G. Liu , X. Zhao , Y. J. Liu , J. F. Wang , X. F. Sun

The mineral linarite (PbCuSO$_4$(OH)$_2$) forms a monoclinic structure where a sequence of Cu(OH)$_2$ units forms a spin-$\frac{1}{2}$ chain. Competing ferromagnetic nearest-neighbor ($J_1$) and antiferromagnetic next-nearest-neighbor…

To probe the peculiar excitations spinons and magnetic monopoles in the quantum spin ice candidate Pr2Zr2O7, we studied the low-temperature thermal Hall conductivity (\k{appa}xy) and thermal conductivity (\k{appa}xx) of Pr2Zr2O7 single…

Strongly Correlated Electrons · Physics 2023-02-28 Wenjun Chu , Xuefeng Sun

In underdoped YBa_2Cu_3O_x (x=6.63), the low-T thermal conductivity Kappa_xx varies steeply with field B at small B, and saturates to a nearly field-independent value at high fields. The simple expression [1+p(T)|B|]^(-1) provides an…

Superconductivity · Physics 2007-05-23 N. P. Ong , K. Krishana , Y. Zhang , Z. A. Xu

We have measured the thermal conductivity tensor of a twinned YBa$_2$Cu$_3$O$_{7-x}$ single crystal as a function of angle $\theta$ between the magnetic field applied parallel to the CuO$_2$ planes and the heat current direction, at…

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

The thermal conductivity $\kappa$ of the quasi-2D organic spin-liquid candidate EtMe$_3$Sb[Pd(dmit)$_2$]$_2$ (dmit-131) was measured at low temperatures, down to 0.07 K. We observe a vanishingly small residual linear term $\kappa_0/T$, in…

We present a temperature and magnetic field dependence study of spin transport and magnetothermal corrections to the thermal conductivity in the spin S = 1/2 integrable easy-plane regime Heisenberg chain, extending an earlier analysis based…

Strongly Correlated Electrons · Physics 2017-08-10 C. Psaroudaki , X. Zotos

We have studied the magnetic field dependence of the thermal conductivity $\kappa(T,B)$ of highly oriented pyrolytic graphite samples at temperatures 0.2K$ \le T < 10$K and fields 0T$ \le B \le 9$T. The samples show clear deviations from…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Konstantin Ulrich , Pablo Esquinazi

Measurements of the low-temperature thermal conductivity collected on insulators with geometrical frustration produce important experimental facts shedding light on the nature of quantum spin liquid composed of spinons. We employ a model of…

Strongly Correlated Electrons · Physics 2013-10-09 V. R. Shaginyan , A. Z. Msezane , K. G. Popov , G. S. Japaridze , V. A. Khodel

The thermal conductivity $\kappa$ of the Kondo insulator SmB$_6$ was measured at low temperature, down to 70 mK, in magnetic fields up to 15 T, on single crystals grown using both the floating-zone and the flux methods. The residual linear…

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…

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 thermal conductivity \kappa in the basal plane of single-crystalline hexagonal NbSe2 has been measured as a function of magnetic field H, oriented both along and perpendicular to the c-axis, at several temperatures below T_c. With the…

Superconductivity · Physics 2009-11-10 A. V. Sologubenko , I. L. Landau , H. R. Ott , A. Bilusic , A. Smontara , H. Berger

We outline a general approach to the computation of transport properties of interacting systems at low temperetures and frequencies. We show that if the fixed point and the irrelevant operators around it are known, then by studying the…

Strongly Correlated Electrons · Physics 2009-11-10 Natan Andrei , Efrat Shimshoni , Achim Rosch

We analyse the behavior of the thermal conductivity, $\kappa(H)$, in the vortex state of a quasi-two-dimensional d-wave superconductor when both the heat current and the applied magnetic field are in the basal plane. At low temperature the…

Superconductivity · Physics 2009-10-31 I. Vekhter , P. J. Hirschfeld

The thermal conductivity \kappa of Cu_1-xMg_xGeO_3 is measured in magnetic fields up to 16 T. At the transition field H_c to the high-field incommensurate (I) phase, \kappa abruptly decreases. While \kappa of the pure CuGeO_3 is enhanced…

Strongly Correlated Electrons · Physics 2009-10-31 J. Takeya , I. Tsukada , Yoichi Ando , T. Masuda , K. Uchinokura , I. Tanaka , R. S. Feigelson , A. Kapitulnik

Identifying the elusive spinon excitations in quantum spin liquid (QSL) materials is what scientists have long sought for. Recently, thermal conductivity ($\kappa$) has emerged to be a decisive probe because the fermionic nature of spinons…

Strongly Correlated Electrons · Physics 2024-05-24 N. Li , A. Brassington , M. F. Shu , Y. Y. Wang , H. Liang , Q. J. Li , X. Zhao , P. J. Baker , H. Kikuchi , T. Masuda , G. Duan , C. Liu , H. Wang , W. Xie , R. Zhong , J. Ma , R. Yu , H. D. Zhou , X. F. Sun

We present experiments on the thermal transport in the spin-1/2 chain compound copper pyrazine dinitrate Cu(C_4 H_4 N_2)(NO_3)_2. The heat conductivity shows a surprisingly strong dependence on the applied magnetic field B, characterized at…

Strongly Correlated Electrons · Physics 2007-05-23 A. V. Sologubenko , K. Berggold , T. Lorenz , A. Rosch , E. Shimshoni , M. D. Phillips , M. M. Turnbull

Kagom\'{e}-staircase compound Ni$_3$V$_2$O$_8$ is an attractive multiferroic material exhibiting rich phase diagrams. However, the magnetic properties and magnetic transitions have been studied only above 1.3 K. In this work, we study the…

Strongly Correlated Electrons · Physics 2019-07-10 Z. Y. Zhao , Q. J. Li , X. G. Liu , X. Rao , H. L. Che , L. G. Chu , Z. Z. He , X. Zhao , X. F. Sun
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