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相关论文: Anisotropic Dependence of Superconductivity on Uni…

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We study single-crystal CeCoIn5 with uniaxial pressure up to 3.97 kbar applied along the c-axis. We find a non-linear dependence of the superconducting transition temperature Tc on pressure, with a maximum close to 2 kbar. The transition…

超导电性 · 物理学 2011-05-09 S. D. Johnson , R. J. Zieve , J. C. Cooley

We have investigated uniaxial and hydrostatic pressure effects on superconductivity in Fe1.07Te0.88S0.12 through magnetic-susceptibility measurements down to 1.8 K. The superconducting transition temperature Tc is enhanced by out-of-plane…

We have investigated uniaxial pressure effect on superconductivity of pure Sr2RuO4, whose intrinsic superconducting transition temperature Tc is 1.5 K. It was revealed that a very low uniaxial pressure along the c axis, only 0.2 GPa,…

The pressure effect on the superconducting transition temperature of MgB2 has been determined using gas pressure up to 1 GPa. The transition temperature Tc was found to decrease linearly at a constant rate over the whole pressure range. The…

超导电性 · 物理学 2007-05-23 B. Lorenz , R. L. Meng , C. W. Chu

We have systematically studied the effects of in-plane uniaxial pressure $p$ on the superconducting transition temperature $T_c$ in many iron-based superconductors. The change of $T_c$ with $p$ is composed of linear and nonlinear…

Experiments under hydrostatic and uniaxial pressure serve not only as a guide in the synthesis of materials with superior superconducting properties but also allow a quantitative test of theoretical models. In this chapter the pressure…

超导电性 · 物理学 2007-05-23 James S. Schilling

The pressure dependence of superconducting transition temperature $T_{\rm c}$ has been investigated through the DC magnetic measurements for FeSe$_{0.8}$ and FeSe$_{1.0}$. For both samples, with increasing pressure $P$, the $T_{\rm…

超导电性 · 物理学 2015-05-13 K. Miyoshi , Y. Takaichi , E. Mutou , K. Fujiwara , J. Takeuchi

We measure the ac susceptibility of single-crystal CeCoIn5 in dc field parallel to the c axis and find further evidence for a high-field phase transition within the superconducting phase in this orientation. We apply up to 2.3 kbar uniaxial…

超导电性 · 物理学 2015-06-05 S. D. Johnson , R. J. Zieve , J. C. Cooley

We report measurements of the pressure-dependent superconducting transition temperature $T_c$ and electrical resistivity of the heavy-fermion compound CeCoIn$_5$. Pressure moves CeCoIn$_5$ away from its proximity to a quantum-critical point…

The temperature dependence of the ac susceptibility for single-crystalline Fe1.02Se has been measured at high pressures to 6.7 GPa. The superconducting transition temperature Tc displays a large increase from 7 K to 30 K in the two-phase…

超导电性 · 物理学 2013-05-29 V. G. Tissen , E. G. Ponyatovskii , M. V. Nefedova , A. N. Titov , V. V. Fedorenko

Using high-resolution dilatometry, we study the thermodynamic response of the lattice parameters to superconducting order in a self-flux grown Ba(Fe0.92Co0.08)2As2 single crystal. The uniaxial pressure dependencies of the critical…

Here we report pressure effect on superconducting transition temperature (Tc) of ReFeAsO0.85 (Re= Sm and Nd) system without fluorine doping. In-situ measurements under high pressure showed that Tc of the two compounds decrease monotonously…

超导电性 · 物理学 2010-09-03 W. Yi , L. Sun , Z. Ren , X. Dong , H. Zhang , X. Dai , Z. Fang , G. Che , J. Yang , Z. Li , X. Shen , F. Zhou , Z. Zhao

Using a mean-field BCS-like approach on the bidimensional extended Hubbard Hamiltonian we calculate the superconducting transition temperature Tc as a function of the hole content nh, for the d-wave and extended-s wave gap symmetries. To…

超导电性 · 物理学 2009-11-07 E. S. Caixeiro , E. V. L. de Mello

We revealed that the superconducting transition temperature Tc of the multi-component superconductor Sr2RuO4 is enhanced to 3.3 K under in-plane uniaxial pressure that reduces the tetragonal crystal symmetry. This result suggests that new…

强关联电子 · 物理学 2015-06-23 Haruka Taniguchi , Keigo Nishimura , Swee K. Goh , Shingo Yonezawa , Yoshiteru Maeno

Measurements of the superconducting transition temperatures for Al-doped, C-doped and neutron-damaged-annealed MgB2 samples under pressure up to ~8 kbar are presented. The dT_c/dP values change systematically with the decrease of the…

超导电性 · 物理学 2009-11-10 S. L. Bud'ko , R. H. T. Wilke , M. Angst , P. C. Canfield

The dependence of the superconducting transition temperature Tc of CaC6 has been determined as a function of hydrostatic pressure in both helium-loaded gas and diamond-anvil cells to 0.6 and 32 GPa, respectively. Following an initial…

超导电性 · 物理学 2015-05-13 M. Debessai , J. J. Hamlin , J. S. Schilling , Y. Meng , D. Rosenmann , D. G. Hinks , H. Claus

The thermal conductivity $\kappa$ of the heavy-fermion superconductor CeIrIn$_5$ was measured as a function of temperature down to $T_c$/8, for current directions perpendicular ($J \parallel a$) and parallel ($J \parallel c$) to the…

强关联电子 · 物理学 2008-02-04 H. Shakeripour , M. A. Tanatar , S. Y. Li , Louis Taillefer , C. Petrovic

We report evidence for unconventional superconductivity in CeIn_3 at a pressure P = 2.65 GPa above critical pressure (P_c ~ 2.5 GPa) revealed by the measurements of nuclear-spin-lattice-relaxation time (T_1) and ac-susceptibility (ac-chi).…

强关联电子 · 物理学 2009-11-07 S. Kawasaki , T. Mito , Y. Kawasaki , G. -q. Zheng , Y. Kitaoka , H. Shishido , S. Araki , R. Settai , Y. Onuki

Resistivity measurements were carried out up to 8 GPa on single crystal and polycrystalline samples of CeCu2Si2 from differing sources in the homogeneity range. The anisotropic response to current direction and small uniaxial stresses was…

强关联电子 · 物理学 2007-05-23 A. T. Holmes , D. Jaccard , H. S. Jeevan , C. Geibel , M. Ishikawa

Superconductivity of transition metal dichalcogenide $1T$-TiTe$_2$ under high pressure was investigated by the first-principles calculations. Our results show that the superconductivity of $1T$-TiTe$_2$ exhibits very different behavior…

超导电性 · 物理学 2017-04-27 R. C. Xiao , W. J. Lu , D. F. Shao , J. Y. Li , M. J. Wei , H. Y. Lv , P. Tong , X. B. Zhu , Y. P. Sun
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