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Recently, two-dimensional Nb$_2$C has garnered increasing attention due to its functional-group-dependent superconductivity, both experimentally and theoretically. In contrast to the halogen and chalcogen additives that have been the main…

Superconductivity · Physics 2025-05-30 Lingxiao Xiong , Yuhui Yan , Feipeng Zheng

Lately, there has been much interest in high temperature superconductors, and more recently hydrogen-based superconductors. This work offers a simple model which explains the behavior of the superconducting gap based on BCS theory, and…

Superconductivity · Physics 2018-07-04 Daniel Kaplan , Yoseph Imry

Superconductivity in topological materials has attracted a great deal of interest in both electron physics and material sciences since the theoretical predictions that Majorana fermions can be realized in topological superconductors [1-4].…

Superconductivity · Physics 2015-11-16 Xiaoyan Shi , Wenlong Yu , Zhigang Jiang , B. Andrei Bernevig , W. Pan , S. D. Hawkins , J. F. Klem

We study the interplay between disorder and superconductivity in a rope of metallic carbon nanotubes. Based on the time dependent Ginzburg Landau theory, we derive the superconducting transition temperature T$_c$ taking into account the…

Superconductivity · Physics 2015-05-14 Besma Bellafi , Sonia Haddad , Samia Charfi-Kaddour

We present results from an extensive study of fluctuation phenomena in superconducting nanowires made from sputtered NbN. Nanoscale wires were fabricated in form of a meander and operated at a constant temperature T~0.4Tc(0). The…

Superconductivity · Physics 2014-11-20 H. Bartolf , A. Engel , A. Schilling , K. Il'in , M. Siegel , H. -W. Huebers , A. Semenov

Superconducting nanowires are the dual elements to Josephson junctions, with quantum phase-slip processes replacing the tunneling of Cooper pairs. When the quantum phase-slip amplitude ES is much smaller than the inductive energy EL, the…

As superconducting circuits emerge as a leading platform for scalable quantum information processing, building comprehensive bridges from the foundational principles of macroscopic quantum phenomena to the architecture of modern quantum…

Competition between superconducting and ferromagnetic ordering at interfaces between ferromagnets (F) and superconductors (S) gives rise to several proximity effects such as odd-triplet superconductivity and spin-polarized supercurrents. A…

Superconductivity · Physics 2019-11-27 Alejandro A. Jara , Evan Moen , Oriol T. Valls , Ilya N. Krivorotov

We study the zero-temperature transport properties of one-dimensional normal-superconductor (NS) junctions with topological superconductors across their topological transitions. Working within the Blonder-Tinkham-Klapwijk (BTK) formalism…

Mesoscale and Nanoscale Physics · Physics 2015-11-06 F. Setiawan , P. M. R. Brydon , Jay D. Sau , S. Das Sarma

Graphene has been proposed for use in various nanodevice designs, many of which harness emergent quantum properties for device functionality. However, visualization, measurement, and manipulation become non-trivial at nanometer and atomic…

Mesoscale and Nanoscale Physics · Physics 2022-03-18 Ondrej Dyck , Jacob L. Swett , Charalambos Evangeli , Andrew R. Lupini , Jan A. Mol , Stephen Jesse

Ion beam analysis techniques are among the most powerful tools for advanced material characterization. Despite their growing relevance in a widening number of fields, most ion beam analysis facilities still rely on the oldest accelerator…

Plasma Physics · Physics 2019-03-06 Matteo Passoni , Luca Fedeli , Francesco Mirani

We report the fabrication of strongly coupled nanohybrid superconducting junctions using PbS semiconductor nanowires and Pb0.5In0.5 superconducting electrodes. The maximum supercurrent in the junction reaches up to ~15 \mu A at 0.3 K, which…

Superconductivity · Physics 2020-10-06 Bum-Kyu Kim , Hong-Seok Kim , Yiming Yang , Xingyue Peng , Dong Yu , Yong-Joo Doh

We present electronic transport measurements of a single wall carbon nanotube quantum dot coupled to Nb superconducting contacts. For temperatures comparable to the superconducting gap peculiar transport features are observed inside the…

Mesoscale and Nanoscale Physics · Physics 2014-06-17 M. Gaass , S. Pfaller , T. Geiger , A. Donarini , M. Grifoni , A. K. Hüttel , C. Strunk

We apply the fidelity approach to study the topological superconductivity in a spin-orbit coupled nanowire system. The wire is modeled as a one layer lattice chain with Zeeman energy and spin-orbit coupling, which is in proximity to a multi…

Superconductivity · Physics 2014-11-25 Wen-Chuan Tian , Guang-Yao Huang , Zhi Wang , Dao-Xin Yao

The development of superconducting qubit technology has shown great potential for the construction of practical quantum computers. As the complexity of quantum processors continues to grow, the need for stringent fabrication tolerances…

Superconducting nanowires are very important due to their applications ranging from quantum technology to astronomy. In this work, we implement a non-invasive process to fabricate nanowires of high-$T_\text{c}$ superconductor…

Superconductivity · Physics 2023-02-27 Sanat Ghosh , Digambar A. Jangade , Mandar M. Deshmukh

We investigate the magnetic field evolution of the superconducting state in a strongly disordered NbN thin film which exhibits a magnetic field tuned superconductor to insulator-like transition, employing low temperature scanning tunneling…

Superconductivity · Physics 2019-09-24 Indranil Roy , Rini Ganguly , Harkirat Singh , Pratap Raychaudhuri

We describe progress and initial results achieved towards the goal of developing integrated multi-conductor arrays of shielded controlled-impedance flexible superconducting transmission lines with ultra-miniature cross sections and wide…

To increase density of superconductor digital and neuromorphic circuits by 10x and reach integration scale of $10^8$ Josephson junctions (JJs) per chip, we developed a new fabrication process on 200-mm wafers, using self-shunted…

A great number of the existing data for electrical transport, the Altshuler Aronov Spivak and Aharonov Bohm effects, as well as the tunneling spectra of individual carbon nanotubes can be well explained by theories of the quantum phase…

Superconductivity · Physics 2007-05-23 Guo-meng Zhao
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