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We report the experimental discovery of superconductivity with critical temperature Tc above 70 K in zirconium polyhydrides, the record high so far for 3d transition metal hydrides. The superconducting zirconium polyhydrides are synthesized…

Superconductivity · Physics 2022-04-01 C. L. Zhang , X. He , Z. W. Li , S. J. Zhang , S. M. Feng , X. C. Wang , R. C. Yu , C. Q. Jin

Materials with graphene-like layers attract tremendous attention due to their electronic structures and superconducting properties. In this study, we synthesized LaP2 polycrystalline and observed a superconducting transition around 30 GPa.…

Superconductivity · Physics 2025-11-18 Mingxin Zhang , Cuiying Pei , Bangshuai Zhu , Qi Wang , Juefei Wu , Yanpeng Qi

A fundamental problem posed from the study of correlated electron compounds, of which heavy-fermion systems are prototypes, is the need to understand the physics of states near a quantum critical point (QCP). At a QCP, magnetic order is…

Polyhydride superconductors have been shown to possess metallic properties with a Bardeen-Cooper-Schrieffer-type superconducting ground state. Here, we provide evidence for unconventional transport associated with a pseudogap phase in cubic…

Superconductivity has been observed in doped SrTiO$_3$ at charge-carrier densities below 10$^{18}$ cm$^{-3}$, where the density of states at the Fermi level of the itinerant electrons is several orders of magnitude lower than that of…

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

Binary ruthenium pnictides, RuP and RuAs, with an orthorhombic MnP structure, were found to show a metal to a non-magnetic insulator transition at TMI = 270 K and 200 K, respectively. In the metallic region above TMI, a structural phase…

Superconductivity · Physics 2012-04-20 D. Hirai , T. Takayama , D. Hashizume , H. Takagi

We have determined the resistive upper critical field Hc2 for single crystals of the superconductor Fe1.11Te0.6Se0.4 using pulsed magnetic fields of up to 60T. A rather high zero-temperature upper critical field of mu0Hc2(0) approx 47T is…

Superconductivity · Physics 2010-01-29 M. H. Fang , J. H. Yang , F. F. Balakirev , Y. Kohama , J. Singleton , B. Qian , Z. Q. Mao , H. D. Wang , H. Q. Yuan

We report the first observation of multigap superconductivity in TaRh$_{2}$B$_{2}$. We show TaRh$_{2}$B$_{2}$ is a bulk type-II superconductor with a transition temperature, $T_{\mathrm{c}} = 6.00(5)$ K. We present transverse-field muon…

Superconductivity · Physics 2018-07-06 D. A. Mayoh , A. D. Hillier , K. Götze , D. McK. Paul , G. Balakrishnan , M. R. Lees

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…

In Z2 topological metals, nontrivial band topology and strong spin-orbit coupling (SOC) impose symmetry constraints that can stabilize unconventional superconducting states, even when thermodynamic probes indicate an isotropic gap. Here, we…

The localized f-electrons enrich the magnetic properties in rare-earth-based intermetallics. Among those, compounds with heavier 4d and 5d transition metals are even more fascinating because anomalous electronic properties may be induced by…

The discoveries of high-temperature superconductivity in H3S and LaH10 have excited the search for superconductivity in compressed hydrides. In contrast to rapidly expanding theoretical studies, high-pressure experiments on hydride…

Superconductivity · Physics 2021-09-15 Wuhao Chen , Dmitrii V. Semenok , Xiaoli Huang , Haiyun Shu , Xin Li , Defang Duan , Tian Cui , Artem R. Oganov

Here we report the effect of structural and superconductivity properties on Ru doped CuIr2Te4 telluride chalcogenide. XRD results suggest that the CuIr2-xRuxTe4 maintain the disordered trigonal structure with space group P3m1 (No. 164) for…

Superconductivity · Physics 2019-11-13 Dong Yan , Lingyong Zeng , Yishi Lin , Junjie Yin , Yuan He , Xing Zhang , Meiling Huang , Meng Wang , Yihua Wang , Daoin Yao , Huixia Luo

Layered SnAs-based Zintl compounds exhibit a distinctive electronic structure, igniting extensive research efforts in areas of superconductivity, topological insulators and quantum magnetism. In this paper, we systematically investigate the…

The structural, elastic, and electronic properties of the very recently discovered ternary silicide superconductor, Li2IrSi3, have been calculated using ab-initio technique. We have carried out the plane-wave pseudopotential approach within…

Superconductivity · Physics 2015-05-12 M. A. Hadi , M. A. Alam , M. Roknuzzaman , M. T. Nasir , A. K. M. A. Islam , S. H. Naqib

Here we report the discovery of superconductivity in the ternary LaRu2As2 compound. The polycrystalline LaRu2As2 samples were synthesized by the conventional solid state reaction method. Powder X-ray diffraction analysis indicates that…

Superconductivity · Physics 2016-05-31 Qi Guo , Bo-Jin Pan , Jia Yu , Bin-Bin Ruan , Dong-Yun Chen , Xiao-Chuan Wang , Qing-Ge Mu , Gen-Fu Chen , Zhi-An Ren

We report superconductivity at $T_c = 1.22$ K and magnetic order at $T_N = 1.06$ K in the semi-metallic noncentrosymmetric Half Heusler compound ErPdBi. The upper critical field, $B_{c2}$, has an unusual quasi-linear temperature variation…

Superconductivity · Physics 2015-06-17 Y. Pan , A. M. Nikitin , T. V. Bay , Y. K. Huang , C. Paulsen , B. H. Yan , A. de Visser

We predicted a new ternary hydride Li$_2$SiH$_6$ at high pressures. A systematic structure search in Li$_2$SiH$_6$ compound reveals novel stable phases with intriguing electronic and phonon properties. It is found that Li$_2$SiH$_6$ is…

Materials Science · Physics 2022-09-13 Sixuan Wu , Bin Li , Zhi Chen , Yu Hou , Yan Bai , Xiaofeng Hao , Yeqian Yang , Shengli Liu , Jie Cheng , Zhixiang Shi

Due to the large spin-orbital coupling in the layered 5d-transition metal chalcogenides compound, the occurrence of superconductivity in Ir2-xPdxTe2 offers a good chance to search for possible topological superconducting states in this…

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