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Related papers: PdTe a 4.5K Type II BCS Superconductor

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This study explores the emergence of superconductivity in high-quality ZrTe$_{2-x}$Se$_x$ crystals, grown via the isothermal chemical vapor transport (ICVT) technique. Resistive, structural, and thermal measurements reveal that substituting…

We report on successful synthesis under high pressure of a series of polycrystalline GdFeAs O_{1-x}F_x high-Tc superconductors with different oxygen deficiency x=0.12 - 0.16 and also with no fluorine. We have found that the high-pressure…

The use of high pressure to realize superconductivity in the vicinity of room temperature has a long history, much of it focused on achieving this in hydrogen rich materials. This paper provides a brief overview of the work presented at…

Superconductivity · Physics 2019-06-11 Russell J. Hemley , Muhtar Ahart , Hanyu Liu , Maddury Somayazulu

Polycrystalline sample of superconducting ThIr$_{3}$ was obtained by arc-melting Th and Ir metals. Powder x-ray diffraction revealed that the compound crystalizes in a rhombohedral crystal structure (R-3m, s.g. no. 166) with the lattice…

Lanthanum hydride is the superconductor with the highest known critical temperature. It is believed that the superconductivity is of standard BCS-type, with electrons forming Cooper pairs and opening the superconducting band gap. Here we…

Superconductivity · Physics 2023-03-09 Sebastiaan van de Bund , Graeme J. Ackland

The discoveries of high-temperature superconductivity in H3S and LaH10 have excited the search for superconductivity in compressed hydrides. In contrast to rapidly expanding theoretical studies, high-pressure experiments on hydride…

Superconductivity · Physics 2021-09-15 Wuhao Chen , Dmitrii V. Semenok , Xiaoli Huang , Haiyun Shu , Xin Li , Defang Duan , Tian Cui , Artem R. Oganov

TaSe$_2$ has several different polytypes and abundant physical properties such as superconductivity and charge density waves (CDW), which had been investigated in the past few decades. However, there is no report on the physical properties…

Superconductivity · Physics 2018-03-14 Hua Bai , Mengmeng Wang , Xiaohui Yang , Yupeng Li , Jiang Ma , Xikang Sun , Qian Tao , Linjun Li , Zhu-An Xu

Elemental materials provide clean and fundamental platforms for studying superconductivity. However, the highest superconducting critical temperature (Tc) yet observed in elements has not exceeded 30 K. Discovering elemental superconductors…

Superconductivity · Physics 2023-06-27 Jianjun Ying , Shiqiu Liu , Qing Lu , Xikai Wen , Zhigang Gui , Yuqing Zhang , Xiaomeng Wang , Jian Sun , Xianhui Chen

Alloying indium into the topological insulator Sn1-xInxBi2Te4 induces bulk superconductivity with critical temperatures Tc up to 1.85 K and upper critical fields up to about 14 kOe. This is confirmed by electrical resistivity, heat…

Superconductivity is observed with critical temperatures near 9K in the tetragonal compound Mo5PB2. This material adopts the Cr5B3 structure type common to supercondcuting Nb5Si3-xBx, Mo5SiB2, and W5SiB2, which have critical temperatures of…

Superconductivity · Physics 2016-03-10 Michael A. McGuire , David S. Parker

The in-plane complex optical properties of the iron-chalcogenide superconductor FeTe0.55Se0.45 have been determined above and below the critical temperature Tc = 14 K. At room temperature the conductivity is described by a…

Superconductivity · Physics 2015-03-13 C. C. Homes , A. Akrap , J. S. Wen , Z. J. Xu , Z. W. Lin , Q. Li , G. D. Gu

The superconductor PdTe$_2$ was recently classified as a Type II Dirac semimetal, and advocated to be an improved platform for topological superconductivity. Here we report magnetic and transport measurements conducted to determine the…

Superconductivity · Physics 2017-12-27 H. Leng , C. Paulsen , Y. K. Huang , A. de Visser

Polycrystalline samples of FeSe$_{0.5}$Te$_{0.5}$ were synthesized using a conventional solid-state reaction method. The onset of bulk superconductivity transition was confirmed by SQUID magnetometry at 12.5~K. $^{57}$Fe M\"ossbauer spectra…

Superconductivity · Physics 2015-05-19 J. Lindén , J. -P. Libäck , M. Karppinen , E. -L. Rautama , H. Yamauchi

We successfully synthesized the BaPt$_2$As$_2$ single crystals and studied their structural and physical properties at low temperatures. BaPt$_2$As$_2$ crystallizes in the CaBe$_2$Ge$_2$-type tetragonal structure (P4/nmm) at room…

Superconductivity · Physics 2015-06-23 W. B. Jiang , C. Y. Guo , Z. F. Weng , Y. F. Wang , Y. H. Chen , Y. Chen , G. M. Pang , T. Shang , X. Lu , H. Q. Yuan

The electronic, phonon and thermoelectric transport properties of (PbTe)2 layer are systematically investigated by using first-principles pseudopotential method and Boltzmann transport equation. Our calculations demonstrate that there is a…

Materials Science · Physics 2020-03-04 Caiyu Sheng , Dengdong Fan , Huijun Liu

Potassium intercalated FeSe has been reported as a superconductor with superconducting transition temperatures ($T_{\rm c}$'s) of 30-48 K. However, there is no clear answer to identify the relationship between the surface morphology,…

Superconductivity · Physics 2017-01-06 Masashi Tanaka , Hiroyuki Takeya , Yoshihiko Takano

The noncentrosymmetric superconductor AuBe have been investigated using the magnetization, resistivity, specific heat, and muon-spin relaxation/rotation measurements. AuBe crystallizes in the cubic FeSi-type B20 structure with…

Superconductivity · Physics 2019-04-17 D. Singh , A. D. Hillier , R. P. Singh

By investigating the bulk superconducting state via dc magnetization measurements, we have discovered a common resurgence of the superconductive transition temperatures (Tcs) of the monolayer Bi2Sr2CuO6+{\delta} (Bi2201) and bilayer…

Superconductivity · Physics 2019-01-30 Liangzi Deng , Yongping Zheng , Zheng Wu , Shuyuan Huyan , Hung-Cheng Wu , Yifan Nie , Kyeongjae Cho , Ching-Wu Chu

Superconducting bulk properties of ternary Nb2 BN are confirmed and are described by means of magnetization, electronic transport and specific-heat measurements. BCS conventional super- conductivity is found with Tc = 4.4 K. Critical fields…

Superconductivity · Physics 2015-06-18 O. V. Cigarroa , S. T. Renosto , A. J. S. Machado

Using a membrane-driven diamond anvil cell and both ac magnetic susceptibility and electrical resistivity measurements, we have characterized the superconducting phase diagram of elemental barium to pressures as high as 65 GPa. We have…

Superconductivity · Physics 2018-06-07 D. E. Jackson , D. VanGennep , Y. K. Vohra , S. T. Weir , J. J. Hamlin