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Related papers: High-entropy silicide superconductors with W$_{5}$…

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We report synthesis and superconductivity at 3.7K in PrO0.5F0.5BiS2. The newly discovered material belongs to the layered sulfide based REO0.5F0.5BiS2 compounds having ZrCuSiAs type structure. The bulk polycrystalline compound is…

Superconductivity · Physics 2013-03-08 Rajveer Jha , Anuj Kumar , Shiva Kumar Singh , V. P. S. Awana

The effects of lithium absorption on the crystal structure and electronic properties of IrSi3, a binary silicide with a noncentrosymmetric crystal structure, were studied. X-ray and neutron diffraction experiments revealed that hexagonal…

Superconductivity · Physics 2014-08-27 S. Pyon , K. Kudo , J. Matsumura , H. Ishii , G. Matsuo , M. Nohara , H. Hojo , K. Oka , M. Azuma , V. O. Garlea , K. Kodama , S. Shamoto

Superconducting properties of the polycrystalline Zr2Ru3Si4 were investigated by the electrical resistivity, magnetization and specific heat. By these measurements, bulk superconductivity with transition temperature Tc = 5.5 K was…

Superconductivity · Physics 2014-01-09 Soshi Ibuka , Motoharu Imai , Takashi Naka , Mitsuaki Nishio

Two new high-entropy ceramics (HECs) in the weberite and fergusonite structures, along with unexpected formation of ordered pyrochlore phases with ultrahigh-entropy compositions and an abrupt pyrochlore-weberite transition, are discovered…

Materials Science · Physics 2022-01-31 Mingde Qin , Heidy Vega , Dawei Zhang , Sarath Adapa , Andrew J. Wright , Renkun Chen , Jian Luo

Electronic structures of three superconducting rare-earth iron silicides (Lu;Y;Sc)2Fe3Si5 and non-superconducting Lu2Ru3Si5, adopting a tetragonal crystal structure (P4/mnc), have been calculated employing the full-potential local-orbital…

Superconductivity · Physics 2014-09-08 M. Samsel-Czekała , M. J. Winiarski

Recently, high entropy alloys (HEAs) have emerged as a new platform for discovering superconducting materials and offer avenues to explore exotic superconductivity. The highly disordered nature of HEA suggests regular phonon required for…

Superconductivity · Physics 2021-09-29 Kapil Motla , Arushi , P. K. Meena , D. Singh , P. K. Biswas , A. D. Hillier , R. P. Singh

Since the discovery of high-entropy superconductors in 2014, superconductivity has remained a focal point of interest in medium- and high-entropy alloys (MEAs-HEAs). Here, we report a series of (Ti0.33Hf0.33Ta0.33)1-xNbx MEA superconductors…

Superconductivity, at 2-3 K, was observed in a novel phase of the ternary Li-Rh-B system. The structural phase exhibits a large noncentrosymmetric cubic unit cell with the a-parameter being within 1.208 \leq a \leq 1.215 nm. This phase is…

The discovery of ThCr2Si2-type AxFe2-ySe2 (A = K, Rb, Cs and Tl) with Tc ~ 30K make much progress in iron-based superconducting field, but their multiple-phase separations are disadvantageous for understanding the origin. On the other hand,…

Superconductivity · Physics 2014-10-24 Jiangang Guo , Hechang Lei , Fumitaka Hayashi , Hideo hosono

High-entropy alloys are a new class of alloys, and attract much attention due to their unique properties. Since the discovery of a superconducting high-entropy alloy (HEA) in 2014, the materials research on HEA superconductor is a hot…

Superconductivity · Physics 2019-04-09 Naoki Ishizu , Jiro Kitagawa

High-entropy alloys (HEAs) are materials that consist of equimolar or near-equimolar multiple principal components but tend to form single phases, which is a new research topic in the field of metallurgy, have attracted extensive attention…

Materials Science · Physics 2021-02-19 Yuanyuan Shang , Jamieson Brechtl , Claudio Psitidda , Peter K. Liaw

The discovery of a superconducting phase in sulfur hydride under high pressure with a critical temperature above 200 K has provided a new impetus to the search for even higher $T_c$. Theory predicted and experiment confirmed that the phase…

We have calculated electronic and optical properties of Si/BeSe$_{0.41}$Te$_{0.59}$ heterostructures by a semiempirical $sp^{3}s^{*}$ tight-binding method. Tight-binding parameters and band bowing of BeSe$_{0.41}$Te$_{0.59}$ are considered…

Materials Science · Physics 2009-07-01 Titus Sandu W. P. Kirk

The trigonal ${\alpha}$-HgS has a 3-fold helical chain structure, and is in form of a noncentrosymmetric $P3_121$ phase, known as the cinnabar phase. However, under pressure, the helical chains gradually approach and connect with each…

Superconductivity · Physics 2023-12-29 He Zhang , Wei Zhong , Yanghao Meng , Bowen Tang , Binbin Yue , Xiaohui Yu , Fang Hong

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…

Two-dimensional (2D) heterostructuring is a versatile methodology for designing nanoarchitecture catalytic systems that allow for reconstruction and modulation of interfaces and electronic structures. However, catalysts with such structures…

High-entropy alloys (HEAs) and their corresponding high-entropy hydrides are new potential candidates for negative electrode materials of nickel-metal hydride (Ni-MH) batteries. This study investigates the cyclic electrochemical hydrogen…

Materials Science · Physics 2024-05-13 Shivam Dangwal , Yongtao Li , Kaveh Edalati

The high-entropy concept was applied to the synthesis of transition-metal antimonides, M1-xPtxSb (M = equimolar Ru, Rh, Pd, and Ir). High-entropy antimonide samples crystallized in a pseudo-hexagonal NiAs-type crystal structure with a…

Superconductivity · Physics 2025-04-01 Daigorou Hirai , Naoto Uematsu , Koh Saitoh , Naoyuki Katayama , Koshi Takenaka

Silicene is an intriguing silicon allotrope with a honeycomb lattice structure similar to graphene with slightly buckled geometry. Molybdenum disulfide (MoS2), on the other hand, is a significant 2D transition metal dichalcogenide that has…

Materials Science · Physics 2024-06-18 Bishwajit Kar , Plabon Paul , Md Arshadur Rahman , Mohammad Jane Alam Khan

In a superconductor that lacks inversion symmetry, the spatial part of the Cooper pair wave function has a reduced symmetry, allowing for the mixing of spin-singlet and spin-triplet Cooper pairing channels and thus providing a pathway to a…

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