English
Related papers

Related papers: Identifying Topological Superconductivity in 2D Tr…

200 papers

Systems that simultaneously exhibit superconductivity and spin-orbit coupling are predicted to provide a route toward topological superconductivity and unconventional electron pairing, driving significant contemporary interest in these…

Recently, it was experimentally realized that 2D superconducting transition metal dichalcogenides (TMD) such as gated MoS$_2$ and monolayer NbSe$_2$ have in-plane upper critical magnetic fields much higher than the Pauli limit. This is due…

Superconductivity · Physics 2016-04-19 Ryohei Wakatsuki , K. T. Law

In Z2 topological metals, nontrivial band topology and strong spin-orbit coupling (SOC) impose symmetry constraints that can stabilize unconventional superconducting states, even when thermodynamic probes indicate an isotropic gap. Here, we…

Pairing of electrons in conventional superconductors occurs at the superconducting transition temperature Tc, creating an energy gap D in the electronic density of states (DOS). In the high-Tc superconductors, a partial gap in the DOS…

Superconductivity · Physics 2007-06-13 Kenjiro K. Gomes , Abhay N. Pasupathy , Aakash Pushp , Shimpei Ono , Yoichi Ando , Ali Yazdani

In iron-based superconductors, band inversion of $d$- and $p$-orbitals yields Dirac semimetallic states. We theoretically investigate their topological properties in normal and superconducting phases, based on the tight-binding model…

Superconductivity · Physics 2019-09-18 Takuto Kawakami , Masatoshi Sato

Recent studies have attracted intense attention on the quasi-2D kagome superconductors $ A\text{V}_3\text{Sb}_5 $ ($ A = $ K, Rb, and Cs) where the unexpected chiral flux phase (CFP) associates with the spontaneous time-reversal symmetry…

Superconductivity · Physics 2023-08-30 Junjie Zeng , Qingming Li , Xun Yang , Dong-Hui Xu , Rui Wang

Increasing demands for renewable sources of energy has been a major driving force for developing efficient thermoelectric materials. Two-dimensional (2D) transition-metal dichalcogenides (TMDC) have emerged as promising candidates for…

Materials Science · Physics 2023-05-24 Sathwik Bharadwaj , Ashwin Ramasubramaniam , L. R. Ram-Mohan

Motivated by the recent experiment indicating that superconductivity in the doped topological insulator Cu$_x$Bi$_2$Se$_3$ has an odd-parity pairing symmetry with rotational symmetry breaking, we study the general class of odd-parity…

Superconductivity · Physics 2016-12-15 Jörn W. F. Venderbos , Vladyslav Kozii , Liang Fu

MoTe_2, with the orthorhombic T_d phase, is a new type (type-II) of Weyl semimetal, where the Weyl Fermions emerge at the boundary between electron and hole pockets. Non-saturating magnetoresistance (MR), and superconductivity were also…

In recent years, transition metal dichalcogenides (TMDs) have garnered great interest as topological materials -- monolayers of centrosymmetric $\beta$-phase TMDs have been identified as 2D topological insulators (TIs), and bulk crystals of…

Materials Science · Physics 2019-10-31 Zhijun Wang , Benjamin J. Wieder , Jian Li , Binghai Yan , B. Andrei Bernevig

Bulk superconductivity in a topological semimetal is a first step towards realizing topological superconductors, which can host Majorana fermions allowing us to achieve quantum computing. Here, we report superconductivity and compensation…

Superconductivity · Physics 2022-05-18 M. Oudah , J. Bannies , D. A. Bonn , M. C. Aronson

We analyze a model for electronic structure and interactions in twisted transition metal chalcogenide WSe$_2$ for superconductivity. In this material, spin-orbit scattering locks the z-components of spins of low-energy fermions near the…

Superconductivity · Physics 2024-10-15 A. V. Chubukov , C. M. Varma

Two-dimensional (2D) semiconducting transition-metal dichalcogenides (TMDCs) are an exciting platform for new excitonic physics and next-generation electronics, creating a strong demand to understand their growth, doping, and…

Topological transition metal dichalcogenides (TMDCs) have attracted much attention due to its potential applications in spintronics and quantum computations. In this work, we systematically investigate the structural and electronic…

Transition metal dichalcogenides are a family of quasi-two-dimensional materials that display a high technological potential due to their wide range of electronic ground states, e.g., from superconducting to semiconducting, depending on the…

Superconductivity in alkali-intercalated iron selenide, with T_c's of 30K and above, may have a different origin than that of the other Fe-based superconductors, since it appears that the Fermi surface does not have any holelike sheets…

Superconductivity · Physics 2013-10-02 A. Kreisel , Y. Wang , T. A. Maier , P. J. Hirschfeld , D. J. Scalapino

Successful doping of single-layer transition metal dichalcogenides (TMDs) remains a formidable barrier to their incorporation into a range of technologies. We use density functional theory to study doping of molybdenum and tungsten…

Materials Science · Physics 2017-11-22 Nicolas Onofrio , David Guzman , Alejandro Strachan

We have studied the optical conductivity of two-dimensional (2D) semiconducting transition metal dichalcogenides (STMDC) using ab-initio density functional theory (DFT). We find that this class of materials presents large optical response…

Materials Science · Physics 2013-11-06 A. Carvalho , R. M. Ribeiro , A. H. Castro Neto

The topology of WTe2, a transition metal dichalcogenide with large spin-orbit interactions, is thought to combine type II Weyl semimetal and second-order topological insulator (SOTI) character. The SOTI character should endow WTe2…

Mesoscale and Nanoscale Physics · Physics 2026-05-08 X. Ballu , Z. Dou , L. Bugaud , R. Delagrange , A. Bernard , Ratnadwip Singha , L. M. Schoop , R. J. Cava , R. Deblock , Sophie Gueron , H. Bouchiat , M. Ferrier

Ideal monolayers of common semiconducting transition metal dichalcogenides (TMDCs) such as MoS$_2$, WS$_2$, MoSe$_2$, and WSe$_2$ possess many similar electronic properties. As it is the case for all semiconductors, however, the physical…