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Strong evidence of unconventional superconductivity has been very recently reported experimentally in twisted transition metal dichalcogenide bilayer and gathered a significant amount of interest. Here we consider the Hubbard model on a…

Superconductivity · Physics 2025-10-29 Andrzej Biborski , Michał Zegrodnik

The discovery of unconventional superconductivity in the heavy-fermion material UTe$_2$ has reinvigorated research of spin-triplet superconductivity. We perform a theoretical study of coupled two-component spin-triplet superconducting order…

Superconductivity · Physics 2024-02-23 Henrik S. Røising , Max Geier , Andreas Kreisel , Brian M. Andersen

We report on the superconductivity in ternary transition metal tellurides Ta2Pd3Te5 and Nb2Pd3Te5, which have a one-dimensional crystal structure. Single-crystalline and polycrystalline samples of Ta2Pd3Te5 show nonmetallic electron…

The characteristics of Fe-based superconductors are manifested in their electronic, magnetic properties, and pairing symmetry of the Cooper pair, but the latter remain to be explored. Usually in these materials, superconductivity coexists…

The combination with superconductivity and topological nontrivial band structure provides a promising route towards novel quantum states such as topological superconductivity. Here, we report the first observation of superconductivity (4.1…

We report superconductivity in the ternary half-Heusler compound LuPtBi, with Tc = 1.0 K and Hc2 = 1.6 T. The crystal structure of LuPtBi lacks inversion symmetry, hence the material is a noncentrosymmetric superconductor. Magnetotransport…

We consider mixed symmetry superconducting phases in Dirac materials in the odd parity channel, where pseudoscalar and vector order parameters can coexist due to their similar critical temperatures when attractive interactions are of finite…

Superconductivity · Physics 2017-05-31 Luca Chirolli , Fernando de Juan , Francisco Guinea

We report the proximity induced anomalous transport behavior in a Nb Bi1.95Sb0.05Se3 heterostructure. Mechanically Exfoliated single crystal of Bi1.95Sb0.05Se3 topological insulator (TI) is partially covered with a 100 nm thick Niobium…

Materials Science · Physics 2017-11-21 E. P. Amaladass , Shilpam Sharma , A. V. Thanikai Arasu , R. Baskaran , Awadhesh Mani

The effects of absence of inversion symmetry on superconducting states are investigated theoretically. In particular we focus on the noncentrosymmetric compounds which have the cubic symmetry $O$ like Li$_2$Pt$_3$B. An appropriate and…

Superconductivity · Physics 2008-03-04 Chi-Ken Lu , Sungkit Yip

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

The infinite-layer nickelates, isostructural to the high-Tc superconductor cuprates, have risen as a promising platform to host unconventional superconductivity and stimulated growing interests in the condensed matter community. Despite…

Superconductivity · Physics 2023-11-13 Haoran Ji , Yanan Li , Yi Liu , Xiang Ding , Zheyuan Xie , Shichao Qi , Liang Qiao , Yi-feng Yang , Guang-Ming Zhang , Jian Wang

Non-zero spin orbit coupling has been reported in several unconventional superconductors due to the absence of inversion symmetry breaking. This contrasts with cuprate superconductors, where such interaction has been neglected for a long…

Strongly Correlated Electrons · Physics 2024-08-13 Hailan Luo , Kayla Currier , Chiu-Yun Lin , Kenneth Gotlieb , Ryo Mori , Hiroshi Eisaki , Alexei Fedorov , Zahid Hussain , Alessandra Lanzara

Superconductivity in materials whose crystal structure lacks inversion symmetry is a prime candidate for unconventional superconductivity. A new noncentrosymmetric compound Zr$_{3}$Ir crystallizes in a tetragonal $ \alpha $-V$_{3} $S…

Superconductivity · Physics 2019-10-08 Sajilesh. K. P. , D. Singh , P. K. Biswas , Gavin B. G. Stenning , A. D. Hillier , R. P. Singh

The superconducting materials family of doped Bi2Se3 remains intensively studied in the field of condensed matter physics due to strong experimental evidence for topologically non-trivial superconductivity in the bulk. However, at the…

Superconductivity · Physics 2022-04-07 Mahasweta Bagchi , Jens Brede , Yoichi Ando

Strontium intercalation between van der Waals bonded layers of topological insulator Bi2Se3 is found to induce superconductivity with a maximum Tc of 2.9 K. Transport measurement on single crystal of optimally doped sample Sr0.1Bi2Se3 shows…

Superconductivity · Physics 2015-05-21 Shruti , V. K. Maurya , P. Neha , P. Srivastava , S. Patnaik

Quasi-two-dimensional layered BiSe, a natural super-lattice with Bi2Se3-Bi2-Bi2Se3 units, has recently been predicted to be a dual topological insulator, simultaneously weak topological insulator as well as topological crystalline…

Nb doped SrTiO3, the first discovered two-gap superconductor, is shown to be the most unconventional one of the known multiband superconductors, since the smaller of the two superconducting gaps follows a non BCS temperature dependence.…

Superconductivity · Physics 2009-09-24 A. Bussmann-Holder , A. R. Bishop , A. Simon

CuxBi2Se3 was recently proposed as a promising candidate for time-reversal-invariant topological superconductors[1]. In this work, we argue that the unusual anisotropy of the Knight shift observed by Zheng[2], taken together with specific…

Superconductivity · Physics 2014-10-01 Liang Fu

The Cu-doped topological insulator Bi$_2$Se$_3$ has recently been found to undergo a superconducting transition upon cooling, raising the possibilities that it is the first known "topological superconductor" or realizes a novel non-Abelian…

Superconductivity · Physics 2009-12-18 L. Wray , S. Xu , J. Xiong , Y. Xia , D. Qian , H. Lin , A. Bansil , Y. Hor , R. J. Cava , M. Z. Hasan

Superconductivity in the two-dimensional (2D) limit is a fertile ground for exotic quantum phenomena-many of which remain elusive in their 3D counterparts. While studies of 2D superconductivity have predominantly focused on mono- or…