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Related papers: Superconductivity in non-centrosymmetric BiPd syst…

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To study the superconducting gap structure of BiS$_2$-based layered compound NdO$_{0.71}$F$_{0.29}$BiS$_{2}$ ($T$$_{\rm c}$ = 5 K), we measured the thermal conductivity $\kappa$, which is a sensitive probe of the low-energy quasiparticle…

Superconductivity · Physics 2016-06-29 T. Yamashita , Y. Tokiwa , D. Terazawa , M. Nagao , S. Watauchi , I. Tanaka , T. Terashima , Y. Matsuda

We propose a minimal toy model for a two-dimensional altermagnet. The model unravels altermagnetic properties at a microscopic level. We find spin-split electron- and non-degenerate magnon bands with a $d$-wave symmetry. We use the model to…

Superconductivity · Physics 2023-12-22 Bjørnulf Brekke , Arne Brataas , Asle Sudbø

We report the discovery of a bulk superconducting transition at 3.4 K in the ternary phosphide, ScIrP, which crystallizes in a hexagonal ZrNiAl-type structure without spatial inversion symmetry. On the basis of heat capacity data in a zero…

Superconductivity · Physics 2015-12-15 Yoshihiko Okamoto , Takumi Inohara , Youichi Yamakawa , Ai Yamakage , Koshi Takenaka

YPtBi, a topological semimetal with very low carrier density, was recently found to be superconducting below $T_\mathrm{c} = 0.77$\,K. In the conventional theory, the nearly vanishing density of states around the Fermi level would imply a…

Superconductivity · Physics 2016-04-06 Markus Meinert

Superconductivity in alkali-intercalated iron selenide, with T_c's of 30K and above, may have a different origin than that of the other Fe-based superconductors, since it appears that the Fermi surface does not have any holelike sheets…

Superconductivity · Physics 2013-10-02 A. Kreisel , Y. Wang , T. A. Maier , P. J. Hirschfeld , D. J. Scalapino

Layered 1$T$-TiSe$_{2}$ has attracted much interest for the competition of charge density wave (CDW) and superconductivity in its bulk and even monolayer forms. Here we perform first-principles calculations of the electronic structure,…

Superconductivity · Physics 2018-08-01 Bao-Tian Wang , Peng-Fei Liu , Jing-Jing Zheng , Wen Yin , Fangwei Wang

Very recent report [1] on observation of superconductivity in Bi4O4S3 could potentially reignite the search for superconductivity in a broad range of layered sulphides. We report here synthesis of Bi4O4S3 at 5000C by vacuum encapsulation…

Superconductivity · Physics 2012-11-21 Shiva Kumar Singh , Anuj Kumar , Bhasker Gahtori , Shruti Kirtan , G. Sharma , S. Patnaik , V. P. S. Awana

The conductivity and permittivity optical spectra of iron-pnictide Ba(Fe0.9Co0.1)2As2 film (Tc=20 K) are analyzed. In the superconducting state, at all temperatures up to Tc the temperature dependences of the magnetic field penetration…

We present the superconducting and normal state properties of CaPd2Ge2 single crystal investigated by magnetic susceptibility \chi, isothermal magnetization M, heat capacity C_p, in-plane electrical resistivity \rho and London penetration…

Superconductivity · Physics 2014-11-10 V. K. Anand , H. Kim , M. A. Tanatar , R. Prozorov , D. C. Johnston

We use electrical transport, magnetoresistance, and heat capacity measurements on high quality single crystals of the recently discovered superconducting Type-II Dirac semi-metal PdTe$_2$, to probe the nature of it's superconducting phase.…

Superconductivity · Physics 2018-01-11 Amit , Yogesh Singh

Type I superconductivity has recently been reported for the Dirac semimetal PdTe$_2$ (Tc approximately 1.6K) with, remarkably, multiple critical fields and a complex phase diagram. Here, measurements of the specific heat utilizing a thermal…

Superconductivity · Physics 2021-03-10 M. V. Salis , Y. K. Huang , A. de Visser

We report the emergence of superconductivity in Ca2InN consisting of a 2-dimensional (2D) array of zigzag indium chains embedded between Ca2N layers. A sudden drop of resistivity and a specific-heat (Cp) jump attributed to the…

Superconductivity · Physics 2014-03-10 Sehoon Jeong , Satoru Matsuishi , Kimoon Lee , Yoshitake Toda , Sung Wng Kim , Hideo Hosono

The two-dimensional Hubbard model exhibits superconductivity with d-wave symmetry even at half-filling in the presence of next-nearest neighbor hopping. Using plaquette cluster dynamical mean-field theory with a continuous-time quantum…

Strongly Correlated Electrons · Physics 2011-09-27 Michael Sentef , Philipp Werner , Emanuel Gull , Arno P. Kampf

We report the first observation of multigap superconductivity in TaRh$_{2}$B$_{2}$. We show TaRh$_{2}$B$_{2}$ is a bulk type-II superconductor with a transition temperature, $T_{\mathrm{c}} = 6.00(5)$ K. We present transverse-field muon…

Superconductivity · Physics 2018-07-06 D. A. Mayoh , A. D. Hillier , K. Götze , D. McK. Paul , G. Balakrishnan , M. R. Lees

Low-temperature thermal conductivity measurements were performed on single crystal of PbTaSe$_2$, a noncentrosymmetric superconductor with topological bulk nodal lines in the electronic band structure. It is found that the residual linear…

Superconductivity · Physics 2017-10-16 M. X. Wang , Y. Xu , L. P. He , J. Zhang , X. C. Hong , P. L. Cai , Z. B. Wang , J. K. Dong , S. Y. Li

Resistivity, dc magnetization, and heat capacity measurements are reported for superconducting NaBi. Tc, the electronic contribution to the specific heat {\gamma}, the {\Delta}Cp/{\gamma}Tc ratio, and the Debye temperature are found to be…

Strongly Correlated Electrons · Physics 2014-03-18 S K Kushwaha , J W Krizan , Jun Xiong , T Klimczuk , Q D Gibson , Tian Liang , N P Ong , R J Cava

We discover superconductivity in cubic W3Re2C with chiral structure and the superconducting transition temperature Tc is about 6.2 K. Detailed characterizations and analysis indicate that W3Re2C is a bulk type-II BCS superconductor with…

Superconductivity · Physics 2026-01-22 Lei Yang , Jing Jiang , Hui-Hui He , Ying Ma , Kai Liu , Xiao Zhang , Hechang Lei

We report first-principles calculations of the k- and T-dependent superconducting gap Delta(k,T) in MgB2 and its manifestation in various measured quantities. Because the Fermi surface has disconnected sheets with different electron-phonon…

Superconductivity · Physics 2007-05-23 Hyoung Joon Choi , David Roundy , Hong Sun , Marvin L. Cohen , Steven G. Louie

We report the systematic investigation of the specific heat of the noncentrosymmetric supercon- ductor Li2(Pd1-xPtx)3B as a function of x. There is a large deviation of the phononic specific heat from the conventional Debye specific heat…

Superconductivity · Physics 2013-05-10 G. Eguchi , D. C. Peets , M. Kriener , S. Yonezawa , G. Bao , S. Harada , Y. Inada , G. -q. Zheng , Y. Maeno

The search for nontrivial superconductivity in novel quantum materials is currently a most attractive topic in condensed matter physics and material science. The experimental studies have progressed quickly over the past couple of years. In…

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