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We report on the crystal growth and characterization of ABi3 (A=Ba,Sr) superconductors. Single crystals of both compounds were grown by the self-flux technique. BaBi3 crystallized in a tetragonal structure with space group P4/mmm and SrBi3…

Superconductivity · Physics 2016-07-13 Rajveer Jha , Marcos A. Avila , Raquel A. Ribeiro

Tellurium (Te) is one of the p-orbital chalcogens, which shows attractive physical properties at ambient pressure. Here, we systematically investigate both structural and electronic evolution of Te single crystal under high pressure up to…

Superconductivity · Physics 2023-12-19 Lingxiao Zhao , Cuiying Pei , Juefei Wu , Yi Zhao , Qi Wang , Bangshuai Zhu , Changhua Li , Weizheng Cao , Yanpeng Qi

The Dirac semimetal PdTe$_2$ was recently reported to be a type-I superconductor ($T_c = $1.64 K, $\mu_0 H_c (0) = 13.6$ mT) with unusual superconductivity of the surface sheath. We here report a high-pressure study, $p \leq 2.5$ GPa, of…

Superconductivity · Physics 2019-12-09 H. Leng , A. Ohmura , L. N. Anh , F. Ishikawa , T. Naka , Y. K. Huang , A. de Visser

Superconductivity and topological quantum states are two frontier fields of research in modern condensed matter physics. The realization of superconductivity in topological materials is highly desired, however, superconductivity in such…

Alloying indium into the topological insulator Sn1-xInxBi2Te4 induces bulk superconductivity with critical temperatures Tc up to 1.85 K and upper critical fields up to about 14 kOe. This is confirmed by electrical resistivity, heat…

The pressure dependencies of the magnetic and superconducting transitions, as well as that of the superconducting upper critical field are reported for single crystalline EuRbFe$_4$As$_4$. Resistance measurements were performed under…

Two single crystalline samples with the same nominal composition of Rb0.8Fe2Se2 prepared via slightly different precursor routes under the same thermal processing conditions were investigated at ambient and high pressures. One sample was…

Superconductivity · Physics 2012-07-18 M. Gooch , B. Lv , L. Z. Deng , T. Muramatsu , J. Meen , Y. Y. Xue , B. Lorenz , C. W. Chu

Pressure-induced superconductivity and its relation to corresponding Hall coefficient (RH) have been reported for Bi2Te3, one of known topological insulators. A full phase diagram is presented which shows a complex dependence of the…

Superconductivity · Physics 2015-05-20 Chao Zhang , Liling Sun , Zhaoyu Chen , Xingjiang Zhou , Qi Wu , Wei Yi , Jing Guo , Xiaoli Dong , Zhongxian Zhao

The pressure-temperature phase diagram of the orthorhombic ferromagnetic superconductor UCoGe was determined by resistivity measurements up to $10.5~$GPa. The Curie temperature $T_C$ is suppressed with pressure and vanishes at the critical…

Strongly Correlated Electrons · Physics 2016-09-14 Gael Bastien , Daniel Braithwaite , Dai Aoki , Georg Knebel , Jacques Flouquet

We report superconductivity in the ternary compound IrBi$_{0.8}$Te$_{1.2}$ with critical temperature 1.7 K. The replacement of Bi by Te leads to the metallic conductivity in contrast to the semiconducting parent compound IrBiTe. The…

Superconductivity · Physics 2024-09-10 Qing-Ge Mu , Walter Schnelle , Guo-Wei Li , Horst Bormann , Claudia Felser , Sergey Medvedev

Through advanced experimental techniques on CrI$_{3}$ single crystals, we derive a previously not discussed pressure-temperature phase diagram. We find that $T_{c}$ increases to $\sim$ 66\,K with pressure up to $\sim$ 3\,GPa followed by a…

Electrical resistivity experiments show superconductivity at $T_c = 1.1\,$K in a high-quality single crystal of trigonal $\gamma$-PtBi$_2$, with an enhanced critical magnetic field $\mu_0H_{c2}(0) \gtrsim 1.5\,$Tesla and a low critical…

Superconductivity · Physics 2024-04-10 J. Zabala , P. Pedrazzini , F. J. Castro , V. F. Correa

Superconductivity has been experimentally observed in monolayer WTe2, which in-plane field measurements suggested are of spin-triplet nature. Furthermore, it has been proposed that with a $p$-wave pairing, the material is a second-order…

Superconductivity · Physics 2023-08-07 Ammar Jahin , Yuxuan Wang

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

We report a detailed study of the transport coefficients of $\beta$-Bi$_4$I$_4$ quasi-one dimensional topological insulator. Electrical resistivity, thermoelectric power, thermal conductivity and Hall coefficient measurements are consistent…

Strongly Correlated Electrons · Physics 2017-07-05 A. Pisoni , R. Gaal , A. Zeugner , V. Falkowski , A. Isaeva , H. Huppertz , G. Autes , O. V. Yazyev , L. Forro

Based on a combination of X-ray diffraction, electrical transports, magnetic susceptibility, specific heat and pressure effect measurements, we report a series of BiS$_{2}$-based Sr$_{1-x}$Pr$_{x}$FBiS$_{2}$ superconductors with the maximum…

Superconductivity · Physics 2019-11-19 Wei You , Lin Li , Haiyang Yang , Jialu Wang , Hongying Mao , Li Zhang , Chuanying Xi , Jie Cheng , Yongkang Luo , Jianhui Dai , Yuke Li

In this communication, we report the temperature dependence (3 to 300K) of the electrical resistivity of BiS2 based layered PrO0.5F0.5BiS2 superconductor at ambient and hydrostatic pressure of up to 3GPa. It is observed that Tc increases…

Superconductivity · Physics 2013-07-19 G. Kalai Selvan , M. Kanagaraj , Rajveer Jha , V. P. S. Awana , S. Arumugam

SrNi$_2$P$_2$ is unique among the ThCr$_2$Si$_2$ class since it exhibits a temperature induced transition upon cooling from an uncollapsed tetragonal (ucT) state to a one-third-collapsed orthorhombic (tcO) state where one out of every three…

We report a high-pressure single-crystal study of the non-centrosymmetric superconductor YPtBi ($T_c = 0.77$ K). Magnetotransport measurements show a weak metallic behavior with a carrier concentration $n \simeq 2.2 \times 10^{19}$…

Superconductivity · Physics 2015-06-05 T. V. Bay , T. Naka , Y. K. Huang , A. de Visser

Candidates compounds for new thermoelectric and superconducting materials, which have narrow band gap and flat bands near band edges, were exhaustively searched by the high-throughput first-principles calculation from an inorganic materials…