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Related papers: Superconductivity in hydrated Lix(H2O)yTaS2

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High entropy alloy superconductors represent a unique blend of advanced material systems and quantum physics, offering significant potential for advancing superconducting technologies. In this study, we report a detailed theoretical and…

Recent studies of hydrogen-dominant (superhydride) materials, such as LaH10 have led to putative discoveries of near-room temperature superconductivity at high pressures, with a superconducting transition temperature (Tc) of 250 K observed…

Superconductivity · Physics 2025-09-26 Xuejie Li , Wenbo zhao , Yuzhou Hao , Xiaoying Wang , Zhibin Gao , Xiangdong Ding

Single crystals of mixed alkaline earth metal iron arsenide materials of Ba1-xSrxFe2As2 and Ba0.5Sr0.5(Fe1-yCoy)2As2 are synthesized via the self-flux method. Ba1-xSrxFe2As2 display spin-density wave features (TN) at temperatures…

The recently discovered LaFe2As2 superconducting compound, member of the 122 family of iron pnictide superconductors, becomes superconducting below Tc=13K, yet its nominal doping apparently places it in the extreme overdoped limit, where…

Superconductivity · Physics 2025-02-18 Ilaria Pallecchi , Akira Iyo , Hiraku Ogino , Marco Affronte , Marina Putti

We report the superconductivity in the layered Zintl phase LiSn$_2$As$_2$, which is isostructural to NaSn$_2$As$_2$ and has a transition temperature ($T_{\mathrm{c}}$) of 1.6 K. Despite similar $T_{\mathrm{c}}$ and Debye temperatures,…

Superconductivity · Physics 2021-11-23 Junjie Wang , Xiangru Cui , Yimin Wan , Tianping Ying , Shiyan Li , Jiangang Guo

2H-NbSe2 is the prototype and most frequently studied of the well-known transition metal dichalcogenide (TMDC) superconductors. Widely acknowledged to be a conventional superconductor, its transition temperature to the superconducting state…

Superconductivity · Physics 2017-03-28 Huixia Luo , Judyta Strychalska-Nowak , Jun Li , Jing Tao , Tomasz Klimczuk , Robert J. Cava

A new electron-doped superconductor Li_x_Sr_2_CuO_2_Br_2_ with x = 0.15 has successfully been synthesized by an electrochemical Li-intercalation technique. The magnetic susceptibility shows superconductivity of bulk with the superconducting…

Superconductivity · Physics 2009-11-10 Tetsuya Kajita , Masatsune Kato , Takashi Suzuki , Takashi Itoh , Takashi Noji , Yoji Koike

Co-doping of lanthanum and phosphorus in CaFe2As2 induces superconductivity at 45 K. This superconducting transition temperature is higher than the 38 K transition in Ba1-xKxFe2As2, which is the maximum found thus far among the 122 phases.…

Compounds of Sr1-xLaxFe2As2 were synthesized by solid state reaction at 1273 K, under pressures of 2 or 3 GPa. The Sr1-xLaxFe2As2 phase was dominant up to x = 0.5, and superconductivity was observed at $x \ge 0.2$. A maximum critical…

Superconductivity · Physics 2015-05-18 Yoshinori Muraba , Satoru Matsuishi , Sung-Wng Kim , Toshiyuki Atou , Osamu Fukunaga , Hideo Hosono

The bulk polycrystalline sample FeSe1/2Te1/2 is synthesized by solid state reaction route in an evacuated sealed quartz tube at 750 oC. The presence of superconductivity is confirmed through magnetization/thermoelectric/resistivity studies.…

Superconductivity · Physics 2015-05-20 V. P. S. Awana , Govind , Anand Pal , Bhasker Gahtori , S. D. Kaushik , A. Vajpayee , Jagdish Kumar , H. Kishan

Superconducting single crystal samples of Na_xCoO_2 + yH_2O have been produced using an electrochemical technique which dispenses with the usual bromine chemical de-intercalation step and permits much more precise control of the Na content.…

Strongly Correlated Electrons · Physics 2009-11-10 F. C. Chou , J. H. Cho , Patrick A. Lee , E. T. Abel , K. Matan , Young S. Lee

Experimental discovery that compressed sulphur hydride exhibits superconducting transition temperature Tc=203 K (Drozdov et al 2015 Nature 525 73) sparked intensive studies of superconducting hydrides. However, this discovery was not a…

Superconductivity · Physics 2022-11-14 E. F. Talantsev

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

BaFe2As2 is the parent compound of the '122' iron arsenide superconductors and crystallizes with the tetragonal ThCr2Si2 type structure, space group I4/mmm. A spin density wave transition at 140 K is accompanied by a symmetry reduction to…

Superconductivity · Physics 2015-05-13 Dirk Johrendt , Rainer Poettgen

We have succeeded in observing zero-resistivity in newly discovered intercalation superconductors Ax(C2H8N2)yFe2-zSe2 (A = Li, Na) with Tc = 45 K, using the sintered pellet samples. The electrical resistivity, \r{ho}, in the normal state is…

Superconductivity · Physics 2016-01-14 T. Hatakeda , T. Noji , S. Hosono , T. Kawamata , M. Kato , Y. Koike

Since the discovery of superconductivity at 200 K in H3S [1] similar or higher transition temperatures, Tcs, have been reported for various hydrogen-rich compounds under ultra-high pressures [2]. Superconductivity was experimentally proved…

The anisotropic superconducting state properties in Cu0.03TaS2 have been investigated by magnetization, magnetoresistance, and specific heat measurements. It clearly shows that Cu0.03TaS2 undergoes a superconducting transition at TC = 4.03…

Here we report a systematic investigation on the evolution of the structural and physical properties, including the charge density wave and superconductivity of the polycrystalline CuIr2Te4-xIx. X-ray diffraction results indicate that both…

High-temperature high-pressure superconducting hydrides are typically characterized by cage-like hydrogenic lattices filled with electropositive metal atoms. Here, density functional theory based evolutionary crystal structure searches find…

Superconductivity · Physics 2024-09-18 Morgan Redington , Eva Zurek

We report a high-pressure study of simultaneous low-temperature electrical resistivity and Hall effect measurements on high quality single-crystalline KFe2As2 using designer diamond anvil cell techniques with applied pressures up to 33 GPa.…