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The pursuit of discovering new high-temperature superconductors that diverge from the copper-based paradigm1-3 carries profound implications for elucidating mechanisms behind superconductivity and may also enable new applications4-8. Here,…

We have determined the resistive upper critical field Hc2 for single crystals of the superconductor Fe1.11Te0.6Se0.4 using pulsed magnetic fields of up to 60T. A rather high zero-temperature upper critical field of mu0Hc2(0) approx 47T is…

Superconductivity · Physics 2010-01-29 M. H. Fang , J. H. Yang , F. F. Balakirev , Y. Kohama , J. Singleton , B. Qian , Z. Q. Mao , H. D. Wang , H. Q. Yuan

We report on the itinerant ferromagnetic superconductor UGe_2 through ^73Ge-NQR measurements under pressure (P). The P dependence of the NQR spectrum signals a first-order transition from the low-temperature (T) and low-P ferromagnetic…

We report the crystal growth and structural, magnetic, conductivity, and specific heat investigations of Rb(1-x)Fe(2-y)Se2 single crystals with varying stoichiometry prepared by self-flux and Bridgman methods. The system exhibits a strongly…

Superconductivity · Physics 2011-11-01 V. Tsurkan , J. Deisenhofer , A. Günther , H. -A. Krug von Nidda , S. Widmann , A. Loidl

Microscopic theory of the normal-to-superconductor coexistence line of a 2D two-band Weyl superconductor subjected to magnetic field is constructed. It is shown that a Weyl semi-metal that is nonsuperconducting or having a small critical…

Superconductivity · Physics 2018-01-03 Baruch Rosenstein , B. Ya. Shapiro , Dingping Li , I. Shapiro

Superconductivity of Ca1-xLaxFe2As2 single crystals with various doping level were investigated via electromagnetic measurements for out-plane (H//c) and in-plane (H//ab) directions. Obvious double superconducting transitions, which can…

Superconductivity · Physics 2013-08-28 W. Zhou , F. F. Yuan , J. C. Zhuang , Y. Sun , Y. Ding , L. J. Cui , J. Bai , Z. X. Shi

The superconducting transition temperature, $T_{\rm{c}}$, of FeSe can be significantly enhanced several-fold by applying pressure, electron doping, intercalating spacing layer, and reducing dimensionality. Various ordered electronic phases,…

Despite growing interest in them, highly crystalline two-dimensional superconductors derived from exfoliated layered materials are few. Employing the anisotropic Migdal-Eliashberg formalism based on {\it ab initio} calculations, we find…

Superconductivity · Physics 2020-04-01 Feipeng Zheng , Xi-Bo Li , Yiping Lin , Lingxiao Xiong , Ji Feng

We investigate the anisotropic superconducting and magnetic properties of single-crystal RbEuFe$_4$As$_4$ using magnetotransport and magnetization measurements. We determine a magnetic ordering temperature of the Eu-moments of $T_m$ = 15 K…

Though the superconducting phase of the type-II Dirac semimetal PdTe$_2$ was shown to be conventional in nature, the phase continued to be interesting in terms of its magnetic properties. While certain experiments indicated an unexpected…

Superconductivity · Physics 2020-01-29 Aastha Vasdev , Anshu Sirohi , M. K. Hooda , C. S Yadav , Goutam Sheet

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

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

Intermetallic R$_3$T$_4$X$_{13}$ series consists of cage like structure and have been in focus due to their unconventional electronic ground states. In this work, we report the normal and superconducting state properties of a high quality…

Superconductivity · Physics 2015-11-23 Om Prakash , A. Thamizhavel , S. Ramakrishnan

Superconducting transition metal dichalcogenides emerged as a prime candidate for topological superconductivity. This work presents a detailed investigation of superconducting and transport properties on 2H-TaSeS single crystals using…

Superconductivity · Physics 2022-11-09 C. Patra , T. Agarwal , Rajeshwari R. Chaudhari , R. P. Singh

As a new type of topological materials, ZrTe5 shows many exotic properties under extreme conditions. Utilizing resistance and ac magnetic susceptibility measurements under high pressure, while the resistance anomaly near 128 K is completely…

Superconductivity in noncentrosymmetric RPt2Si2 (R = rare earth) compounds exhibit a rich playground to explore the competition between different ground states, such as unconventional superconductivity, antiferromagnetism and charge density…

The presence of a non-centrosymmetric crystal structure and in-plane mirror symmetry allows an Ising spin-orbit coupling to form in some two-dimensional materials. Examples include transition metal dichalcogenide superconductors like…

Superconductivity · Physics 2025-03-04 Subhojit Roy , Andreas Kreisel , Brian M. Andersen , Shantanu Mukherjee

We report the superconducting properties of single crystals of the intermetallic perovskite-related compound BaBi$_{3}$. The superconducting transition temperature ($T_{c}=5.82$~K) was obtained from heat capacity measurements. Using the…

Superconductivity · Physics 2015-06-19 Neel Haldolaarachchige , S. K. Kushwaha , Quinn Gibson , R. J. Cava

Heat capacity, resistivity, and magnetic susceptibility measurements confirm bulk superconductivity in single crystals of BaIr$_2$P$_2$ (T$_c$=2.1K) and BaRh$_2$P$_2$ (T$_c$ = 1.0 K). These compounds form in the ThCr$_2$Si$_2$ (122)…

Superconductivity · Physics 2009-05-06 N. Berry , C. Capan , G. Seyfarth , A. D. Bianchi , J. Ziller , Z. Fisk

The self-consistent solutions of a nonlinear Ginzburg--Landau equations, which describe the behavior of a superconducting plate of thickness 2D in a magnetic field H parallel to its surface (provided that there are no vortices inside the…

Superconductivity · Physics 2007-05-23 G. F. Zharkov
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