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We report on the superconducting properties of In doped SnTe which has recently been explored as a topological crystalline superconductor. Single crystals of Sn0.5In0.5Te have been synthesized by modified Bridgman method. Resistivity…

Superconductivity · Physics 2014-06-17 V. K. Maurya , Shruti , P. Srivastava , S. Patnaik

The intricate interplay between nontrivial topology and magnetism in two-dimensional (2D) materials has led to the emergence of many novel phenomena and functionalities. An outstanding example is the quantum anomalous Hall (QAH) effect,…

Mesoscale and Nanoscale Physics · Physics 2020-01-24 Chang Liu , Yongchao Wang , Hao Li , Yang Wu , Yaoxin Li , Jiaheng Li , Ke He , Yong Xu , Jinsong Zhang , Yayu Wang

Kagome lattice systems have been proposed to host rich physics, which provide an excellent platform to explore unusual quantum states. Here, we report on the discovery of superconductivity in van der Waals material Pd3P2S8 under pressure.…

Magnetic topological insulators (MTIs) have received a lot of attention due to the existence of various quantum phenomena such as quantum anomalous Hall effect (QAHE) and topological magnetoelectric effect, etc. The intrinsic…

The structural, superconducting, and electronic phase diagram of [Tl4]Tl1-xSnxTe3 is reported. Magnetization and specific heat measurements show bulk superconductivity exists for 0 < x < 0.4. Resistivity measurements indicate a crossover…

Strongly Correlated Electrons · Physics 2015-02-26 K. E. Arpino , B. D. Wasser , T. M. McQueen

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

Various transition metal trichalcogenides (TMTC) show the charge-density-wave and superconductivity, which provide an ideal platform to study the correlation between these two orderings and the mechanism of superconductivity. Currently,…

Superconductivity · Physics 2021-11-04 Binbin Yue , Wei Zhong , Wen Deng , Ting Wen , Yonggang Wang , Yunyu Yin , Pengfei Shan , Xiaohui Yu , Fang Hong

A first-order-like resistivity hysteresis is induced by a subtle structural transition under hydrostatic pressure in the topological nodal-line superconductor PbTaSe$_2$. This structure transition is quickly suppressed to zero at pressure…

Superconductivity · Physics 2017-09-06 C. Q. Xu , R. Sankar , W. Zhou , Bin Li , Z. D. Han , B. Qian , J. H. Dai , Hengbo Cui , A. F. Bangura , F. C. Chou , Xiaofeng Xu

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…

Using high-pressure magnetotransport techniques we have discovered superconductivity in Bi2Te, a member of the infinitely adaptive (Bi2)m(Bi2Te3)n series, whose end members, Bi and Bi2Te3, can be tuned to display topological surface states…

Superconductivity · Physics 2016-03-23 Ryan L. Stillwell , Zsolt Jenei , Samuel T. Weir , Yogesh K. Vohra , Jason R. Jeffries

High pressure electrical resistance and x-ray diffraction measurements have been performed on ruthenium-doped Ba(Fe0.9Ru0.1)2As2, up to pressures of 32 GPa and down to temperatures of 10 K, using designer diamond anvils under…

Superconductivity · Physics 2014-04-15 Walter Uhoya , Georgiy M. Tsoi , Yogesh K. Vohra , Athena S. Sefat , Samuel T. Weir

The recent discovery of large and non-saturating magnetoresistance (LMR) in WTe2 provides a unique playground to find new phenomena and significant perspective for potential applications. Here we report the first observation of…

Recently, intriguing phenomena of superconductivity, type-II Weyl semimetal or quantum spin Hall states were discovered in metastable 1T'-type VIB-group transition metal dichalcogenides (TMDs). Here, we report that monoclinic phase WS2 was…

We report unidirectional charge transport in a $\mathrm{NbSe_2}$ noncentrosymmetric superconductor, which is exchange-coupled with a $\mathrm{CrPS_4}$ van der Waals layered antiferromagnetic insulator. The $\mathrm{NbSe_2/CrPS_4}$ bilayer…

Superconductivity · Physics 2023-06-29 Jonginn Yun , Suhan Son , Jeacheol Shin , Giung Park , Kaixuan Zhang , Young Jae Shin , Je-Geun Park , Dohun Kim

Layered non-centrosymmetric bismuth tellurohalides are being examined as candidates for topological insulators. Pressure is believed to be essential for inducing and tuning topological order in these systems. Through electrical transport…

AgSbTe2 is a well-known thermoelectric material with a high Seebeck coefficient and intrinsically low thermal conductivity, but its behavior under pressure remains largely unexplored. Here we report a systematic investigation of the…

The recent surprising discovery of superconductivity with critical temperature $T_c$ = 32 K in MoB$_2$ above 70 GPa has led to the search for related materials that may superconduct at similarly high $T_c$ values and lower pressures. We…

Here we report the discovery of superconductivity in multiple phases of the compressed GeSb2Te4 (GST) phase change memory alloy, which has attracted considerable attention for the last decade due to its unusual physical properties with many…

Tungsten ditelluride (WTe2) has attracted significant attention due to its interesting electronic properties, such as the unsaturated magnetoresistance and superconductivity. Recently, it has been proposed to be a new type of Weyl…

Quantum states of matter combining non-trivial topology and magnetism attract a lot of attention nowadays; the special focus is on magnetic topological insulators (MTIs) featuring quantum anomalous Hall and axion insulator phases.…