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Topological superconductivity is one of most fascinating properties of topological quantum matters that was theoretically proposed and can support Majorana Fermions at the edge state. Superconductivity was previously realized in a…

The discovery of the high temperature superconducting state in compounds of hydrogen, carbon and sulfur with the critical temperature (Tc) of 288 K at high pressure is an important milestone towards room-temperature superconductors. Here,…

超导电性 · 物理学 2021-07-23 Mingyang Du , Zihan Zhang , Tian Cui , Defang Duan1

We report the results of resistance measurements under pressure up to $4.2\,\mathrm{GPa}$ on single-crystalline $\mathrm{CaSb}_2$ , which shows the maximum of superconducting transition temperature $T_\mathrm{c}$ at $3.1\,\mathrm{GPa}$. At…

超导电性 · 物理学 2025-11-05 Shumpei Oguchi , Kenji Ishida , Atsutoshi Ikeda , Yoshiteru Maeno , Shunsaku Kitagawa

We explore both experimental and theoretical aspects of the superconducting properties in the distinctive layered caged compound, Ba$_{3}$Ir$_{4}$Ge$_{16}$. Our approach integrates muon spin rotation and relaxation ($\mu$SR) measurements…

The recent discovery of superconductivity at 190~K in highly compressed H$_{2}$S is spectacular not only because it sets a record high critical temperature, but because it does so in a material that appears to be, and we argue here that it…

超导电性 · 物理学 2015-03-05 N. Bernstein , C. S. Hellberg , M. D. Johannes , I. I. Mazin , M. J. Mehl

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

We report synthesis, structural details and complete superconducting characterization of very recently discovered Nb2PdS5 new superconductor. The synthesized compound is crystallized in mono-clinic structure. Bulk superconductivity is seen…

超导电性 · 物理学 2015-06-18 Rajveer Jha , Brajesh Tiwari , Poonam Rani , H. Kishan , V. P. S. Awana

We have successfully synthesized a new superconducting phase of FeTe1-xSx with a PbO-type structure. It has the simplest crystal structure in iron-based superconductors. Superconducting transition temperature is about 10 K at x = 0.2. The…

超导电性 · 物理学 2009-01-07 Y. Mizuguchi , F. Tomioka , S. Tsuda , T. Yamaguchi , Y. Takano

The rich phenomena in the FeSe and related compounds have attracted great interests as it provides fertile material to gain further insight into the mechanism of high temperature superconductivity. A natural follow-up work was to look into…

超导电性 · 物理学 2021-10-04 T. L. Hung , C. H. Huang , L. Z. Deng , M. N. Ou , Y. Y. Chen , M. K. Wu , S. Y. Huyan , C. W. Chu , P. J. Chen , T. K. Lee

Oxygen exhibits structural phase transformation from non-metallic $\epsilon$-O2 phase into metallic $\zeta$-O2 phase at pressure of P = 96 GPa (Desgreniers et al 1990 J. Phys. Chem. 94 1117; Akahama et al 1995 Phys. Rev. Lett. 74 4690).…

超导电性 · 物理学 2020-10-29 E. F. Talantsev

Recent renewal of the highest transition temperature in a conventional superconductor of the sulfer hydride attracts much attention to exploring simple compounds with the lighter elements, situated in unconventional conditions. We report…

材料科学 · 物理学 2022-05-11 K. Yoshimatsu , O. Sakata , A. Ohtomo

We investigate bulk superconductivity in a high-quality single crystal of Bi$_2$Pd ($\beta$-Bi$_2$Pd, space group; I4/mmm) at temperatures less than 5.4 K by exploring its electrical resistivity, magnetic susceptibility, and specific heat.…

We report on the emergence of robust superconducting order in single crystal alloys of 2H-TaSe$_{2-x}$S$_{x}$ (0$\leq$x$\leq$2) . The critical temperature of the alloy is surprisingly higher than that of the two end compounds TaSe$_{2}$ and…

We show that two different superconducting phases exist at high pressures in the optimized tetradymite topological insulators Bi2Te2Se (BTS) and Bi1.1Sb0.9Te2S (BSTS). The superconducting phases emerge at structural phase transitions, the…

All solid phases of bismuth under pressure, but one, have been experimentally found to superconduct. From Bi-I to Bi-V, avoiding Bi-IV, they become superconductors and perhaps Bi-IV may also become superconductive. To investigate the…

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,…

We have discovered that samples of a new material produced by special processing of crystals of Sr2RuO4 (which is known to be a triplet superconductor with Tc values ~1.0-1.5K) exhibit signatures of superconductivity (zero DC resistance and…

A superconducting state, that induces in ${\rm GeH_{4}}$ under the pressure at 20 GPa, is being characterized by a high critical temperature $T_{C}\in<54.54,31.23>$ K, for a wide range of the Coulomb pseudopotential…

超导电性 · 物理学 2016-08-14 R. Szczęśniak , A. P. Durajski , D. Szczęśniak

The evolution of pressure induced superconductivity in single crystal as well as polycrystalline samples of BaFe2As2 has been investigated through temperature dependent electrical resistivity studies in 0-7 GPa pressure range. While the…

超导电性 · 物理学 2015-05-13 Awadhesh Mani , Nilotpal Ghosh , S. Paulraj , A. Bharathi , C. S. Sundar

We report the discovery of pressure-induced superconductivity in a semimetallic magnetic material CeTe$_{1.82}$. The superconducting transition temperature $T_{SC}$ = 2.7 K (well below the magnetic ordering temperatures) under pressure ($>$…

强关联电子 · 物理学 2009-11-07 M. H. Jung , A. Alsmadi , H. C. Kim , Yunkyu Bang , K. H. Ahn , K. Umeo , A. H. Lacerda , H. Nakotte , H. C. Ri , T. Takabatake