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Topological semimetals with superconducting properties provide an emergent platform to explore the properties of topological superconductors. We report magnetization, and magneto-transport measurements on high quality single crystals of…

Superconductivity · Physics 2022-06-29 M. Singh , P. Saha , V. Nagpal , S. Patnaik

We compare predictions of the mean-field theory of superconductivity for nearly antiferromagnetic and nearly ferromagnetic metals in two dimensions. The calculations are based on a parametrization of the effective interaction arising from…

Strongly Correlated Electrons · Physics 2009-10-31 P. Monthoux , G. G. Lonzarich

Two-dimensional transition metal dichalcogenide PdTe$_2$ recently attracts much attention due to its phase coexistence of type-II Dirac semimetal and type-I superconductivity. Here we report a 67 % enhancement of superconducting transition…

Superconductivity · Physics 2021-03-02 Wenhao Liu , Sheng Li , hanlin Wu , Nikhil Dhale , Pawan Koirala , Bing Lv

Transition-metal chalcogenides host various phases of matter, such as charge-density wave (CDW), superconductors, and topological insulators or semimetals. Superconductivity and its competition with CDW in low-dimensional compounds have…

In this article, we report the detailed magneto transport measurements of the topological semimetal (TSM) candidate, Sn2Pd. Single crystal of Sn2Pd is synthesized through the self-flux method. Phase purity and crystalline morphology are…

Superconductivity · Physics 2022-07-07 M. M. Sharma , V. P. S. Awana

The thermodynamical phenomenological theory of magnetically active superconducting materials and magnetic-superconducting heterostructures is presented. The materials may exhibit arbitrarily strong anisotropy, parametric or structural.…

Superconductivity · Physics 2010-12-20 Dominik Rogula , Małgorzata Sztyren

The discovery of iron pnictides and iron chalcogenides as a new class of unconventional superconductors in 2008 has generated an enourmous amount of experimental and theoretical work that identifies these materials as correlated metals with…

Strongly Correlated Electrons · Physics 2017-01-24 Daniel Guterding , Steffen Backes , Milan Tomic , Harald O. Jeschke , Roser Valenti

An intriguing aspect of unconventional superconductivity is that it always appears in the vicinity of other competing phases, whose suppression brings the full emergence of superconductivity. In the iron-pnictides, these competing phases…

Recent experiments showed the distinct observations on the transition metal ditelluride NiTe$_2$ under pressure: one reported a superconducting phase transition at 12 GPa, whereas another observed a sign reversal of Hall resistivity at 16…

Superconductivity · Physics 2021-07-14 Jian-Feng Zhang , Yawen Zhao , Kai Liu , Yi Liu , Zhong-Yi Lu

Transition metal dichalcogenides (TMDs) are quasi-two-dimensional layered compounds exhibiting strongly competing charge-density wave (CDW) and superconducting (SC) order parameters (OPs). The weak van der Waals interlayer bonding between…

Superconductivity · Physics 2015-05-26 Richard A. Klemm

Electrical-resistivity and magnetic-susceptibility measurements under hydrostatic pressure up to p = 2.75 GPa have been performed on superconducting LiFeP. A broad superconducting (SC) region exists in the temperature - pressure (T-p) phase…

Superconductivity · Physics 2010-07-14 K. Mydeen , E. Lengyel , Z. Deng , X. C. Wang , C. Q. Jin , M. Nicklas

In contrast to conventional s-wave superconductivity, unconventional (e.g. p or d-wave) superconductivity is strongly suppressed even by relatively weak disorder. Upon approaching the superconductor-metal transition, the order parameter…

Superconductivity · Physics 2015-01-27 A. Keles , A. V. Andreev , S. A. Kivelson , B. Z. Spivak

We determine the behavior of the critical temperature of magnetically mediated p-wave superconductivity near a ferromagnetic quantum critical point in three dimensions, distinguishing universal and non-universal aspects of the result. We…

Superconductivity · Physics 2009-10-31 R. Roussev , A. J. Millis

We report transport properties of single-crystalline Pd$_{3}$Bi$_{2}$S$_{2}$, which has been predicted to host an unconventional electronic phase of matter beyond three-dimensional Dirac and Weyl semimetals. Similar to several topological…

Materials Science · Physics 2018-04-27 Shubhankar Roy , Arnab Pariari , Ratnadwip Singha , Biswarup Satpati , Prabhat Mandal

The phenomenology of the iron pnictide superconductor can be described by the threeband s+- Eliashberg theory in which the mechanism of superconducting coupling is mediated by antiferromagnetic spin fluctuations and whose characteristic…

Superconductivity · Physics 2023-01-12 G. A. Ummarino

In several members of the pnictide materials, spin density wave order coexists with superconductivity over a range of dopings and temperature. In this paper we show that odd-frequency superconductivity emerges on the edges of pnictides in…

Superconductivity · Physics 2018-11-12 Cody Youmans , Areg Ghazaryan , Mehdi Kargarian , Pouyan Ghaemi

The magnetic, thermal and transport properties as well as electronic band structure of MnPtSi are reported. MnPtSi is a metal that undergoes a ferromagnetic transition at $T_{\mathrm{C}}=340$(1) K and a spin-reorientation transition at…

Strongly Correlated Electrons · Physics 2019-09-04 Monika B. Gamża , Walter Schnelle , Helge Rosner , Sarah V. Ackerbauer , Yuri Grin , Andreas Leithe-Jasper

The quasi-one-dimensional material PdTeI exhibits unusual electronic transport properties at ambient pressure. Here, we systematically investigate both the structural and electronic responses of PdTeI to external pressure, through a…

Superconductivity of the second kind was observed in many 3D Weyl and Dirac semi-metals. However in PdT e2, superconductivity is clearly of the first kind. This is very rare in Dirac semi - metals, but is expected in clean conventional…

Superconductivity · Physics 2018-08-15 B. Ya. Shapiro , I. Shapiro , Dingping Li , Baruch Rosenstein

The heterogeneous coexistence of antiferromagnetism (SDW) and superconductivity on a mesoscopic scale was observed in iron-pnictides in many recent experiments. We suggest and discuss the scenario in which the heterogeneity is caused by…

Superconductivity · Physics 2010-04-26 Lev P. Gor'kov , Gregory B. Teitel'baum