English
Related papers

Related papers: Superconductivity in the Nb2SnC compound

200 papers

We report on the discovery, structural analysis, and the physical properties of Nb$_4$SiSb$_2$ -- a hitherto unknown compound crystallizing in the V$_4$SiSb$_2$-type structure with the tetragonal space group $I4/mcm$ and unit cell…

We consider a system where structural polymorphism suggests the possible existence of superconductivity through the implied structural instability. SrPd2Bi2 has two poly-morphs which can be controlled by the synthesis temperature: a…

Superconductivity · Physics 2016-02-04 Weiwei Xie , Elizabeth M. Seibel , Robert J. Cava

This review paper illustrates the main normal and superconducting state properties of magnesium diboride, a material known since early 1950's, but recently discovered to be superconductive at a remarkably high critical temperature Tc=40K…

Superconductivity · Physics 2007-05-23 Cristina Buzea , Tsutomu Yamashita

We report the synthesis, magnetic susceptibility and crystal structure analysis for NbB2+x (x = 0.0 to 1.0) samples. The study facilitates in finding a correlation among the lattice parameters, chemical composition and the superconducting…

Superconductivity · Physics 2009-11-13 Monika Mudgel , V. P. S. Awana , G. L. Bhalla , H. Kishan

Dense pure and doped (Mg1-xAx)B2 samples with A = Na, Ca, Cu, Ag, Zn and Al were synthesized at high pressure - high temperature in a multi anvils press (3.5-6 GPa, 900-1000C) for x up to 0.20. They were studied by x-ray diffraction,…

Superconductivity · Physics 2007-05-23 P. Toulemonde , N. Musolino , H. L. Suo , R. Flukiger

The intermetallic compound, YRhAl, has been prepared and is found to be isomorphic with RRhAl (R=Pr, Nd, Gd, Ho and Tm) compounds crystallizing in the orthorhombic TiNiSi-type structure (Space group Pnma). Heat capacity and electrical…

Superconductivity · Physics 2009-11-10 Darshan C. Kundaliya , S. K. Malik

Niobium polyhydride was synthesized at high pressure and high temperature conditions by using diamond anvil cell combined with in situ high pressure laser heating techniques. High pressure electric transport experiments demonstrate that…

We present new upper critical field Hc2(T) data in a broad temperature region from 0.3K to Tc for LuNi2B2C and YNi2B2C single crystals with well characterized low impurity scattering rates. The absolute values for all T, in particular…

Superconductivity · Physics 2009-10-30 S. V. Shulga , S. -L. Drechsler , G. Fuchs , K. -H. Mueller , K. Winzer , M. Heinecke , K. Krug

Here we report the synthesis and discovery of superconductivity in a novel ternary iridium-arsenide compound BaIr2As2. The polycrystalline BaIr2As2 sample was synthesized by a high temperature and high pressure method. Crystal structural…

Superconductivity · Physics 2017-08-22 Xiao-Chuan Wang , Bin-Bin Ruan , Jia Yu , Bo-Jin Pan , Qing-Ge Mu , Tong Liu , Gen-Fu Chen , Zhi-An Ren

The results of electrical resistance (1.4 - 300 K), magnetization (2-300 K) and heat-capacity (2 - 50 K) measurements in Y$_2$PdGe$_3$, found to crystallize in a AlB$_2$-derived hexagonalstructure, are reported. The results establish that…

Superconductivity · Physics 2007-05-23 E. V. Sampathkumaran , Subham Majumdar

The search for superconductivity in materials iso-structural and iso-valent with magnesium diboride, MgB2, has not yielded any results close enough to the 39K Tc of MgB2. Lithium magnesium nitride, LiMgN, resembles MgB2 in that they both…

Superconductivity · Physics 2012-04-25 O. P. Isikaku-Ironkwe

CeNi0.8Bi2 is very recent entrant in superconductivity kitchen [1], and the same seeks reproduction from other groups. We report synthesis, structural details and superconductivity in CeNi0.8Bi2 compound. The CeNi0.8Bi2 compound is…

Superconductivity · Physics 2012-07-10 Anuj Kumar , Shiva Kumar , Rajveer Jha , V. P. S. Awana

This article reports the experimentally clarified crystal structure of a recently discovered sulfur hydride in high temperature superconducting phase which has the highest critical temperature Tc over 200 K which has been ever reported. For…

The discovery of superconductivity in 3$d$-transition metal compounds with strong magnetism is interesting but rare. Especially for Mn-based compounds, there exist only very limited materials that show superconductivity. Here, we report the…

Superconductivity · Physics 2025-02-17 Zhe-Ning Xiang , Ying-Jie Zhang , Qing Lu , Qing Li , Yiwen Li , Tianheng Huang , Yijie Zhu , Yongze Ye , Jian Sun , Hai-Hu Wen

The discovery of nearly room-temperature superconductivity in superhydrides has motivated further materials research for conventional superconductors. To realize the moderately high critical temperature $(T_\mathrm{c})$ in materials…

The high pressure phases of HBr are explored with an ab initio crystal structure search. By taking into account the contribution of zero-point energy (ZPE), we find that the P4/nmm phase of HBr is thermodynamically stable in the pressure…

Superconductivity · Physics 2017-08-31 Qinyan Gu , Pengchao Lu , Kang Xia , Jian Sun , Dingyu Xing

WBe2, which occurs in space group 194, with hexagonal symmetry P63/mmc, is prepared by arc-melting at temperatures above 2200 C, where Be vapor loss is significant. This study is motivated by recent work on MoB2 and WB2, both…

Superconductivity · Physics 2026-03-17 J. S. Kim , P. M. Dee , J. J. Hamlin , P. J. Hirschfeld , G. R. Stewart

Two correlated superconducting phases are identified in layered superconductor BaTi2(Sb1-xBix)2O (x=0.16), with the superconducting transition temperatures of TC = 6 K (the high TC phase) and 3.4 K (the low TC Phase), respectively. The 6 K…

Superconductivity · Physics 2015-06-19 Y. Wu , X. L. Dong , M. W. Ma , H. X. Yang , C. Zhang , F. Zhou , X. J. Zhou , Z. X. Zhao

The intermetallic compounds AAl2-xSix, where A = Ca, Sr or Ba, crystallize in the C32 structure, same as the recently discovered MgB2 with a high superconducting transition temperature of 39 K. For x = 1, superconductivity has been observed…

Superconductivity · Physics 2009-11-07 B. Lorenz , J. Lenzi , J. Cmaidalka , R. L. Meng , Y. Y. Sun , Y. Y. Xue , C. W. Chu

We report bulk superconductivity at 2.5K in LaO0.5F0.5BiSe2 compound through the DC magnetic susceptibility and electrical resistivity measurements. The synthesized LaO0.5F0.5BiSe2 compound is crystallized in tetragonal structure with space…

Superconductivity · Physics 2015-09-03 Rajveer Jha , V. P. S. Awana