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Recently, we reported [M. Wagner et al., J. Mater. Res. 26, 1886 (2011)] transport measurements on the semiconducting intermetallic system RuIn3 and its substitution derivatives RuIn_{3-x}A_{x} (A = Sn, Zn). Higher values of the…

Materials Science · Physics 2015-05-30 Deepa Kasinathan , Maik Wagner , Klaus Koepernik , Raul Cardoso-Gil , Yu. Grin , Helge Rosner

We report the superconducting properties of new hexagonal Nb$_{10+2x}$Mo$_{35-x}$Ru$_{35-x}$Rh$_{10}$Pd$_{10}$ high-entropy alloys (HEAs) (0 $\leq$ $x$ $\leq$ 5). With increasing $x$, the superconducting transition temperature $T_{\rm c}$…

Superconductivity · Physics 2020-03-19 Bin Liu , Jifeng Wu , Yanwei Cui , Qinqing Zhu , Guorui Xiao , Siqi Wu , Guanghan Cao , Zhi Ren

Superconductivity with exotic properties has often been discovered in materials with a layered (two-dimensional) crystal structure. The low dimensionality affects the electronic structure of materials, which could realize a high transition…

Superconductivity · Physics 2017-11-03 Yosuke Goto , Akira Yamada , Tatsuma D. Matsuda , Yuji Aoki , Yoshikazu Mizuguchi

SnTaS2 is a recently discovered layered semimetal exhibiting type-II low transition temperature superconductivity. Except some superconductivity related parameters, most of the physical properties, namely, elastic, mechanical, bonding,…

Materials Science · Physics 2022-07-13 M. I. Naher , M. Mahamudujjaman , A. Tasnim , R. S. Islam , S. H. Naqib

Crystal structure searching and ab initio calculations have been used here to explore low-energy structures of boron carbides under high pressure. Under pressures of 85-110 GPa, a metastable B6C with R-3m symmetry is found to be…

Materials Science · Physics 2018-01-01 Kang Xia , Mengdong Ma , Cong Liu , Hao Gao , Qun Chen , Julong He , Jian Sun , Hui-Tian Wang , Yongjun Tian , Dingyu Xing

Competition between collective states like charge density wave and superconductivity is played out in some of the transition metal dichalcogenides unencumbered by the spin degrees of freedom. Although 2H-NbSe$_2$ has received much less…

Strongly Correlated Electrons · Physics 2015-04-21 S. Koley , N. Mohanta , A. Taraphder

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 superconducting behavior of the topological semimetal CaSn$_{3}$ was investigated by means of magnetotransport and muon spectroscopy $\mu$SR measurements, both providing strong evidence of nematic behavior. Magnetotransport detects an…

We report electronic structure calculations for the layered centrosymmetric superconductor LaNiGa$_2$, which has been identified as having a possible triplet state based on evidence for time reversal symmetry breaking. The Fermi surface has…

Superconductivity · Physics 2012-11-12 David J. Singh

High superconducting transition temperature is favorable for the applications of superconductors. Some cuprate superconductors have the transition temperatures above 100 K, such as the Hg- or Tl-based 1223 and 1234 phases, but many of them…

Superconductivity · Physics 2024-10-11 Meng-Jun Ou , Yuecong Liu , Yi Wang , Hai-Hu Wen

The abundant chemical compositions in ternary hydrides bring much more possibility to explore high temperature superconductors under lower pressure. Here we constructed 115 ternary hydrides on the basis of the elements substitution using 16…

Superconductivity · Physics 2024-11-19 Bangshuai Zhu , Dexi Shao , Cuiying Pei , Qi Wang , Juefei Wu , Yanpeng Qi

We report the results of $^{139}$La NMR measurements in the non-centrosymmetric superconductor LaRhGe$_3$. This material crystallizes in a tetragonal structure without inversion symmetry and exhibits type-I superconductivity below 385 mK.…

Superconductivity · Physics 2025-01-24 Shunsaku Kitagawa , Hiroyasu Matsudaira , Kenji Ishida , Mohamed Oudah

Using density functional theory calculations, many researchers have predicted that various tungsten-nitride compounds WN$_x$ ($x$ > 1) will be "ultra-compressible" or "superhard", $i.e.$ as hard as or harder than diamond. These compounds…

Materials Science · Physics 2015-06-11 Michael J. Mehl , Daniel Finkenstadt , Christian Dane , Gus L. W. Hart , Stefano Curtarolo

A theory has been developed to explain the anomalous behavior of the magnetic susceptibility of a normal metal-superconductor ($NS$) structure in weak magnetic fields at millikelvin temperatures. The effect was discovered experimentally by…

Superconductivity · Physics 2015-06-25 G. A. Gogadze

The quest for materials that simultaneously exhibit superconductivity and nontrivial topology has drawn significant attention in recent years, driven by their potential to host exotic quantum states. Their unique coexistence often leads to…

Superconductivity · Physics 2025-10-16 Arafat Rahman , Alamgir Kabir , Tareq Mahmud

We report the superconductivity of the CaSn3 single crystal with a AuCu3-type structure, namely cubic space group Pm3m. The superconducting transition temperature TC=4.2 K is determined by the magnetic susceptibility, electrical…

Superconductivity · Physics 2015-12-09 X. Luo , D. F. Shao , Q. L. Pei , J. Y. Song , L. Hu , Y. Y. Han , X. B. Zhu , W. H. Song , W. J. Lu , Y. P. Sun

The recent discovery of superconductivity in Sr-doped NdNiO$_2$, with a critical temperature of $10-15$ K suggests the possibility of a new family of nickel-based high-temperature superconductors (HTS). NdNiO$_{2}$ is the $n=\infty$ member…

Strongly Correlated Electrons · Physics 2021-09-15 Harrison LaBollita , Antia S. Botana

Searching for new superconductors, especially unconventional superconductors, has been studied extensively for decades but remains one of the major outstanding challenges in condensed matter physics. Medium/high-entropy alloys (MEAs-HEAs)…

Experimentally discovered compounds in the iron-nitrogen system belong to the low concentration part of the Fe-N phase diagram. In our paper, which is based on ab initio calculations we have studied formation and stability of high-pressure…

Materials Science · Physics 2019-03-27 Alexey Kartsev , Oleg Feya , Nina Bondarenko , Alexander G. Kvashnin , Artem Oganov

In this letter, we report that the superconductivity transition temperature in beta-Fe1.01Se increases from 8.5 to 36.7 K under applied pressure of 8.9 GPa. It then decreases at higher pressure. A dramatic change in volume is observed at…