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The layered transition metal dichalcogenide compounds 1T-TaS2 and 4H-TaS2 are well known for their exotic properties, which include charge density wave, superconductivity, Mott transition, etc., and lately quantum spin liquid. Here, we…

We report synthesis and superconductivity at 3.7K in PrO0.5F0.5BiS2. The newly discovered material belongs to the layered sulfide based REO0.5F0.5BiS2 compounds having ZrCuSiAs type structure. The bulk polycrystalline compound is…

Superconductivity · Physics 2013-03-08 Rajveer Jha , Anuj Kumar , Shiva Kumar Singh , V. P. S. Awana

Superconducting materials with a nontrivial band structure are potential candidates for topological superconductivity. Here, by combining muon-spin rotation and relaxation ($\mu$SR) methods with theoretical calculations, we investigate the…

Superconductivity · Physics 2020-06-22 T. Shang , J. Z. Zhao , D. J. Gawryluk , M. Shi , M. Medarde , E. Pomjakushina , T. Shiroka

Superconductivity has been found in RuN films obtained by reactive magnetron sputtering. This is a novel member of the metal nitride superconductors family. The critical temperature of the superconducting transition varies depending on the…

We have performed electrical resistivity measurements of a polycrystalline sample of FeSe$_{0.25}$Te$_{0.75}$, which exhibits superconductivity at $T_{\rm c} \sim 14$ K, in magnetic fields up to 55 T to determine the upper critical field…

The trigonal ${\alpha}$-HgS has a 3-fold helical chain structure, and is in form of a noncentrosymmetric $P3_121$ phase, known as the cinnabar phase. However, under pressure, the helical chains gradually approach and connect with each…

Superconductivity · Physics 2023-12-29 He Zhang , Wei Zhong , Yanghao Meng , Bowen Tang , Binbin Yue , Xiaohui Yu , Fang Hong

The noncentrosymmetric Half Heusler compound YPtBi exhibits superconductivity below a critical temperature T_c = 0.77 K with a zero-temperature upper critical field H_c2(0) = 1.5 T. Magnetoresistance and Hall measurements support…

Superconductivity · Physics 2011-12-22 Nicholas P. Butch , P. Syers , Kevin Kirshenbaum , Andrew P. Hope , Johnpierre Paglione

Through the solid state reaction method, we synthesized a new BiSe2-based superconductor Sr0:5La0:5FBiSe2 with superconducting transition temperature Tc?3.8 K. A strong diamagnetic signal below Tc in susceptibility ?(T) is observed…

Superconductivity · Physics 2016-05-02 Lin Li , Yongliang Xiang , Yihong Chen , Wenhe Jiao , Chuhang Zhang , Li Zhang , Jianhui Dai , Yuke Li

Superconducting transition metal dichalcogenides emerged as a prime candidate for topological superconductivity. This work presents a detailed investigation of superconducting and transport properties on 2H-TaSeS single crystals using…

Superconductivity · Physics 2022-11-09 C. Patra , T. Agarwal , Rajeshwari R. Chaudhari , R. P. Singh

We report the observation of superconductivity with multiple magnetic ordering and Rashba-type spin-orbit coupling in a layered polar semimetal EuAuBi. Magnetic transition is observed at 4 K, followed by a superconducting transition at 2.2…

Recently, superconductivity in PuCoGa5 was discovered. It has the same crystal structure as CeMIn5(M=Ir, Co, Rh). The electron correlation in PuCoGa5 is estimated to be weak compared with CeMIn5, and the filling number of electrons is…

Superconductivity · Physics 2009-11-10 Kazunori Tanaka , Hiroaki Ikeda , Kosaku Yamada

The era of near-room-temperature superconductivity started after experimental discovery by Drozdov et al (2015 Nature 525 73) who found that compressed H3S exhibits superconducting transition at Tc = 203 K. To date, the record…

Superconductivity · Physics 2019-08-30 Evgueni F. Talantsev

Since the discovery of superconductivity in LaFePO in 2006, numerous iron-based superconductors have been identified within diverse structure families, all of which combine iron with a group-V (pnictogen) or group-VI (chalco- gen) element.…

Strongly Correlated Electrons · Physics 2016-03-30 Jiasheng Chen , Konstantin Semeniuk , Zhuo Feng , Pascal Reiss , Yang Zou , Peter W. Logg , Giulio I. Lampronti , F. Malte Grosche

We show that the previously unreported ternary $\sigma$-phase material Nb$_{20.4}$Ru$_{5.7}$Ge$_{3.9}$ is a superconductor with a critical temperature of 2.2 K. Temperature-dependent magnetic susceptibility, resistance, and specific heat…

Superconductivity · Physics 2017-12-13 Elizabeth M. Carnicom , Weiwei Xie , Zuzanna Sobczak , Tai Kong , Tomasz Klimczuk , Robert J. Cava

We report the discovery of superconductivity at 2.3 K in Zr5Sb3, the first superconducting member in the large compound family of the Mn5Si3-structure type. Transport, magnetic, and calorimetric measurements and band structure calculations…

Superconductivity · Physics 2013-11-11 B. Lv , X. Y. Zhu , B. Lorenz , F. Y. Wei , Y. Y. Xue , Z. P. Yin , G. Kotliar , C. W. Chu

Exploration of superconductivity in light element compounds has drawn considerable attention because those materials can easily realize the high $T_{c}$ superconductivity, such as ${\mathrm{LnNi}}_{2}{\mathrm{B}_{2}}{\mathrm{C}}$ ($T_{c}$…

Superconductivity · Physics 2021-01-08 W. Wu , Y. J. Li , J. H. Zhang , Z. H. Yu , Z. Y. Liu , P. Zheng , H. X. Yang , C. Dong , K. Liu , T. Xiang , J. L. Luo

Superconductivity is observed with critical temperature $T_{c}$ = 2.0 K in self-flux-grown single crystals of $CaBi_{2}$. This material adopts the $ZrSi_{2}$ structure type with lattice parameters a = 4.696(1) $\AA$, b = 7.081(2) $\AA$ and…

The unique electronic and crystal structures driven by external pressure in transition metal chalcogenides (TMCs) can host emergent quantum states. Here we report pressure-induced metallization, nontrivial $Z_2$ band topology and…

Superconductivity · Physics 2023-01-25 Haiyang Yang , Yonghui Zhou , Shuyang Wang , Jing Wang , Xuliang Chen , Lili Zhang , Chenchao Xu , Zhaorong Yang

The discovery of signatures of topological superconductivity in superconducting bulk materials with topological surface states has attracted intensive research interests recently. Utilizing angle-resolved photoemission spectroscopy and…

This review paper illustrates the main normal and superconducting state properties of magnesium diboride, a material known since early 1950's, but recently discovered to be superconductive at a remarkably high critical temperature Tc=40K…

Superconductivity · Physics 2007-05-23 Cristina Buzea , Tsutomu Yamashita