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We report measurements of the pressure dependence of the superconducting transition temperature T_c in single crystal samples of the rare-earth doped superconductor Ca$_{0.73}$La$_{0.27}$Fe$_2$As$_2$. We track T_c with two techniques, via…

We report a record high superconducting transition temperature ($T_{\rm c}$) up to 23.6 K under high pressure in the elemental metal Ti, one of the top ten most abundant elements in Earth's crust. The $T_{\rm c}$ increases monotonically…

Superconductivity · Physics 2022-07-13 Xuqiang Liu , Peng Jiang , Yiming Wang , Mingtao Li , Nana Li , Qian Zhang , Yandong Wang , Yan-ling Li , Wenge Yang

We report measurements of resistance and ac magnetic susceptibility on FeSe single crystals under high pressure up to 27.2 kbar. The structural phase transition is quickly suppressed with pressure, and the associated anomaly is not seen…

We present magnetoresistivity measurements on the heavy-fermion superconductor UTe$_{2}$ in pulsed magnetic fields $\mu_0H$ up to 68~T and temperatures $T$ from 1.4 to 80~K. Magnetic fields applied along the three crystallographic…

The magnetic ordering temperature of some rare earth based heavy fermion compounds is strongly pressure-dependent and can be completely suppressed at a critical pressure, p$_c$, making way for novel correlated electron states close to this…

Strongly Correlated Electrons · Physics 2009-10-31 F. M. Grosche , I. R. Walker , S. R. Julian , N. D. Mathur , D. M. Freye , M. J. Steiner , G. G. Lonzarich

We report a comprehensive investigation of the pressure effects on the magnetotransport properties of the topological material ZrTe5 within 1 to 8 GPa pressure range. With increasing pressure, the characteristic peak (Tp) in its electrical…

Here we report the observation of superconductivity in pressurized type-II Weyl semimetal (WSM) candidate TaIrTe4 by means of complementary high-pressure transport and synchrotron X-ray diffraction measurements. We find that TaIrTe4 shows…

Superconductivity · Physics 2019-01-16 Shu Cai , Eve Emmanouilidou , Jing Guo , Xiaodong Li , Yanchuan Li , Ke Yang , Aiguo Li , Qi Wu , Ni Ni , Liling Sun

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

We measured the low-temperature thermal conductivity of a new layered superconductor with quasi-one-dimensional characteristics, the ternary telluride Ta$_4$Pd$_3$Te$_{16}$ with transition temperature $T_c \approx$ 4.3 K. The significant…

Superconductivity · Physics 2016-01-28 J. Pan , W. H. Jiao , X. C. Hong , Z. Zhang , L. P. He , P. L. Cai , J. Zhang , G. H. Cao , S. Y. Li

Simultaneous low-temperature electrical resistivity and Hall effect measurements were performed on single-crystalline Bi2Se3 under applied pressures up to 50 GPa. As a function of pressure, superconductivity is observed to onset above 11…

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

We carried out the measurements of magnetoresistance, magnetic susceptibility and specific heat on crystals of the low-dimensional transition metal telluride Ta$_4$Pd$_3$Te$_{16}$. Our results indicate that Ta$_4$Pd$_3$Te$_{16}$ is an…

Superconductivity · Physics 2015-07-29 Wen-He Jiao , Yi Liu , Yu-Ke Li , Xiao-Feng Xu , Jin-Ke Bao , Chun-Mu Feng , Shi-Yan Li , Zhu-An Xu , Guang-Han Cao

We have carried out high pressure experiment on the pressure-induced superconductor CeIrSi$_3$ without inversion center. The electrical resistivity and ac heat capacity were measured in the same run for the same sample. The critical…

Tungsten ditelluride has attracted intense research interest due to the recent discovery of its large unsaturated magnetoresistance up to 60 Tesla. Motivated by the presence of a small, sensitive Fermi surface of 5d electronic orbitals, we…

The normal state and superconducting properties are investigated in the phase diagram of K_xSr_{1-x}Fe_2As_2 for 0<x<1. The ground state upper critical field, H_{c2}(0), is extrapolated from magnetic field dependent resistivity…

Superconductivity · Physics 2009-03-03 B. Lv , M. Gooch , B. Lorenz , F. Chen , A. M. Guloy , C. W. Chu

We report electrical resistivity measurements on a high-quality Ba$_{1-x}$K$_{x}$Fe$_{2}$As$_{2}$ thin film ($x=0.4$) under pressure. The superconducting transition temperature (=39.95 K) of the optimally-doped thin film shows a dome shape…

Superconductivity · Physics 2012-07-26 Eunsung Park , Nam Hoon Lee , Won Nam Kang , Tuson Park

Low temperature ac magnetic susceptibility measurements of the coexistent antiferromagnetic superconductor YbPd2Sn have been made in hydrostatic pressures < 74 kbar in moissanite anvil cells. The superconducting transition temperature is…

Strongly Correlated Electrons · Physics 2007-05-23 A-M. Cumberlidge , P. L. Alireza , A. F. Kusmartseva , E. E. Pearson , G. G. Lonzarich , N. R. Bernhoeft , B. Roessli

We present a detailed study of the electrical transport properties of a recently discovered iron-based superconductor: Sm$_4$Fe$_2$As$_2$Te$_{0.72}$O$_{2.8}$F$_{1.2}$. We followed the temperature dependence of the upper critical field by…

Superconductivity · Physics 2016-12-20 A Pisoni , S Katrych , P Szirmai , B Náfrádi , R Gaál , J Karpinski , L Forró

Measurements of temperature-dependent resistance and magnetization under hydrostatic pressures up to 2.13 GPa are reported for single-crystalline, superconducting BaBi$_3$. A temperature - pressure phase diagram is determined and the…

High pressure electrical resistivity and x-ray diffraction experiments have been performed on Fe single crystals. The crystallographic investigation provides direct evidence that in the martensitic $bcc \rightarrow hcp$ transition at 14 GPa…

Superconductivity · Physics 2015-06-16 C. S. Yadav , G. Seyfarth , P. Pedrazzini , H. Wilhelm , R. Černý , D. Jaccard