中文
相关论文

相关论文: Superconductivity in Compressed Potassium and Rubi…

200 篇论文

An overview of the crystal structures and physical properties of the recently discovered iron-platinum-arsenide superconductors, Ca10(PtnAs8)(Fe2-xPtxAs2)5 (n = 3 and 4), which have a superconducting transition temperature up to 38 K, is…

SrPt3P has recently been reported to exhibit superconductivity with Tc = 8.4 K. To explore its superconducting mechanism, we have performed electron and phonon band calculations based on the density functional theory, and found that the…

超导电性 · 物理学 2013-04-10 Chang-Jong Kang , Kyo-Hoon Ahn , Kwan-Woo Lee , B. I. Min

A recent report that sulfur hydride under pressure is an electron-phonon superconductor with a Tc of 190 K has been met with much excitement although it is yet to be confirmed. Based on several electron-phonon spectral density functions…

超导电性 · 物理学 2015-06-30 E. J. Nicol , J. P. Carbotte

The current search for room-temperature superconductivity is inspired by the unique properties of the electron-phonon interaction in metal superhydrides. Encouraged by the recently found highest-$T_C$ superconductor fcc-$LaH_{10}$, here we…

In an experiment in a diamond anvil cell utilizing helium pressure medium, yttrium metal displays a superconducting transition temperature which increases monotonically from Tc ? 3.5 K at 30 GPa to 17 K at 89.3 GPa, one of the highest…

超导电性 · 物理学 2009-11-11 J. J. Hamlin , V. G. Tissen , J. S. Schilling

Herein, we report the synthesis and detailed superconducting properties of a new high entropy alloy superconductor with nominal composition Nb$_{20}$Re$_{20}$Zr$_{20}$Hf$_{20}$Ti$_{20}$ using powder X-ray diffraction (XRD),…

超导电性 · 物理学 2018-04-27 Sourav Marik , Maneesha Varghese , K. P. Sajilesh , Deepak Singh , R. P. Singh

Using first-principles calculations, we examine the transition temperature $T_{\rm c}$ of superconductivity in sodium tungsten bronze ( Na$_x$WO$_3$, where $x$ is equal to or less than unity ). Although $T_{\rm c}$ is relatively low $T_{\rm…

超导电性 · 物理学 2020-10-27 Kazuhiro Sano , Yoshihiro Nitta , Yoshiaki Ōno

A recent experiment by Shan {\it et al} [arXiv:2304.09011] found that rhenium trioxide ReO$_3$, a simple metal at the ambient pressure, becomes superconducting with a transition temperature as high as 17 K at 30 GPa. In this paper, we…

超导电性 · 物理学 2024-11-06 Aiqin Yang , Xiangru Tao , Yundi Quan , Peng Zhang

We report experimental discovery of tantalum polyhydride superconductor. It was synthesized at high pressure and high temperature conditions using diamond anvil cell combined with in-situ high pressure laser heating techniques. The…

The 2014-2015 prediction, discovery, and confirmation of record high temperature superconductivity above 200K in H$_3$S, followed by the 2018 extension to superconductivity in the 250-280K range in lanthanum hydride, marks a new era in the…

超导电性 · 物理学 2019-11-13 Yundi Quan , Soham S. Ghosh , Warren E. Pickett

Following the recent discovery of very high temperature conventional superconductivity in sulfur hydride (critical temperature Tc of 203 K, Ref1) we searched for superconductivity in other hydrides and found that a covalent hydride…

超导电性 · 物理学 2015-08-26 A. P. Drozdov , M. I. Eremets , I. A. Troyan

We report the results of resistance measurements under pressure up to $4.2\,\mathrm{GPa}$ on single-crystalline $\mathrm{CaSb}_2$ , which shows the maximum of superconducting transition temperature $T_\mathrm{c}$ at $3.1\,\mathrm{GPa}$. At…

超导电性 · 物理学 2025-11-05 Shumpei Oguchi , Kenji Ishida , Atsutoshi Ikeda , Yoshiteru Maeno , Shunsaku Kitagawa

Here we report targeted high-pressure synthesis of two novel high-$T_C$ hydride superconductors, $P6_3/mmc$-$ThH_9$ and $Fm\bar{3}m$-$ThH_{10}$, with the experimental critical temperatures ($T_C$) of 146 K and 159-161 K and upper critical…

Superconductivity in novel bismuth-sulphur superconductors has attracted large research efforts, both experimental and theoretical, but a consensus on the nature of superconductivity in these materials has yet to be reached. Using density…

It is known that in pressurized H2S the complex electronic structure in the energy range of 200 meV near the chemical potential can be separated into two electronic components, the first characterized by steep bands with a high Fermi…

强关联电子 · 物理学 2017-07-10 A. Bussmann-Holder , J. Kohler , A. Simon , M. Whangbo , A. Bianconi

We report synthesis, structural details and complete superconducting characterization of very recently discovered Nb2PdS5 new superconductor. The synthesized compound is crystallized in mono-clinic structure. Bulk superconductivity is seen…

超导电性 · 物理学 2015-06-18 Rajveer Jha , Brajesh Tiwari , Poonam Rani , H. Kishan , V. P. S. Awana

We predict that electron-doped silicene is a good two-dimensional electron-phonon superconductor under biaxial tensile strain by first-principles calculations within rigid band approximation. Superconductivity transition temperature of…

超导电性 · 物理学 2013-11-27 Wenhui Wan , Yanfeng Ge , Fan Yang , Yugui Yao

Two-dimensional (2D) boron has been predicted to show superconductivity. However, intrinsic 2D carbon and phosphorus have not been reported to be superconductors, which, inspires us to seek superconductivity in their mixture. Here we…

超导电性 · 物理学 2018-05-23 Bao-Tian Wang , Peng-Fei Liu , Tao Bo , Wen Yin , Fangwei Wang

We found superconductivity in CaSb$_2$ with the transition temperature of 1.7 K by means of electrical-resistivity, magnetic-susceptibility, and specific-heat measurements. This material crystallizes in a nonsymmorphic structure and is…

Based on the first-principles density functional theory electronic structure calculation, we investigate the possible phonon-mediated superconductivity in arsenene, a two-dimensional buckled arsenic atomic sheet, under electron doping. We…

超导电性 · 物理学 2018-03-28 Xin Kong , Miao Gao , Xun-Wang Yan , Zhong-Yi Lu , Tao Xiang