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In an in-situ prepared three-terminal Josephson junction based on the topological insulator Bi$_4$Te$_3$ and the superconductor Nb the transport properties are studied. The differential resistance maps as a function of two bias currents…

Ion beam damage combined with nanoscale focused ion beam direct milling was used to create manufacturable SNS type Josephson junctions in 100 nm thick MgB$_{2}$ with T$_{C}$ of 38 K. The junctions show non-hysteretic current - voltage…

Superconductivity · Physics 2018-07-04 D. -J. Kang , N. H. Peng , R. Webb , C. Jeynes , J. H. Yun , S. H. Moon , D. Oh , G. Burnell , E. J. Tarte , D. F. Moore , M. G. Blamire

We theoretically investigate the temperature-to-phase conversion (TPC) process occurring in dc superconducting quantum interferometers based on superconductor--normal metal--superconductor (SNS) mesoscopic Josephson junctions. In…

Superconductivity · Physics 2018-05-21 P. Virtanen , A. Ronzani , F. Giazotto

We report an experimental study of induced superconductivity in Ge hut nanowire Josephson junctions. The Ge hut nanowires are grown on prepatterned SiGe ridges via molecular beam epitaxy (MBE) and Josephson junction devices are fabricated…

Mesoscale and Nanoscale Physics · Physics 2026-01-23 Han Gao , Jian-Huan Wang , Ji-Yin Wang , Jian-Jun Zhang , Hongqi Xu

High-quality free-standing InAs nanosheets are emerging layered semiconductor materials with potentials in designing planar Josephson junction devices for novel physics studies due to their unique properties including strong spin-orbit…

Mesoscale and Nanoscale Physics · Physics 2023-08-09 Shili Yan , Haitian Su , Dong Pan , Weijie Li , Zhaozheng Lyu , Mo Chen , Xingjun Wu , Li Lu , Jianhua Zhao , Ji-Yin Wang , H. Q. Xu

Superconductor digital electronics using Josephson junctions as ultrafast switches and magnetic-flux encoding of information was proposed over 30 years ago as a sub-terahertz clock frequency alternative to semiconductor electronics based on…

Superconductivity · Physics 2016-06-03 Sergey K. Tolpygo

We demonstrate that the supercurrent can be strongly enhanced in cross-like superconducting hybrid nanostructures (X-junctions) exposed to a temperature gradient. At temperatures T exceeding the Thouless energy of our X-junction the…

Superconductivity · Physics 2021-07-08 Mikhail S. Kalenkov , Andrei D. Zaikin

Multi-terminal Josephson junctions were recently proposed as a versatile and tunable platform to emulate topological Bloch-like Hamiltonians in arbitrary dimensions. In this perspective article, we will give a brief overview of the subject…

Mesoscale and Nanoscale Physics · Physics 2023-03-31 Lucila Peralta Gavensky , Gonzalo Usaj , C. A. Balseiro

In this article, we present an experimental study of a Josephson junction -based high-impedance resonator. By taking the resonator to the limit of consisting effectively only of one junction, results in strong non-linear effects already for…

Quantum Physics · Physics 2025-03-11 S. Andersson , H. Havir , A. Ranni , S. Haldar , V. F. Maisi

The design of a mesoscopic self-oscillating heat engine that works thanks to purely quantum effects is presented. The proposed scheme is amenable to experimental implementation with current state-of-the-art nanotechnology and materials. One…

Mesoscale and Nanoscale Physics · Physics 2016-11-30 G. Marchegiani , P. Virtanen , F. Giazotto , M. Campisi

Superconducting circuits incorporating Josephson elements represent a promising hardware platform for quantum technologies. Potential applications include scalable quantum computing, microwave quantum networks, and quantum-limited…

Symmetry plays a critical role in determining various properties of a material. Semiconducting p-n junction diode exemplifies the engineered skew electronic response and is at the heart of contemporary electronic circuits. The…

Hybrid InSb nanowire-superconductor devices are promising for investigating Majorana modes and topological quantum computation in solid-state devices. An experimental realisation of ballistic, phase-coherent superconductor-nanowire hybrid…

Mesoscale and Nanoscale Physics · Physics 2016-04-25 S. Li , N. Kang , D. X. Fan , L. B. Wang , Y. Q. Huang , P. Caroff , H. Q. Xu

Superconductor-Ferromagnet-Superconductor (S-F-S) Josephson junctions were fabricated by making a narrow cut through a S-F double layer using direct writing by Focused Ion Beam (FIB). Due to a high resolution (spot size smaller than 10 nm)…

Superconductivity · Physics 2009-11-10 V. M. Krasnov , O. Ericsson , S. Intiso , P. Delsing , V. A. Oboznov , A. S. Prokofiev , V. V. Ryazanov

A tunable and balanced heat interferometer is proposed and analyzed. The device consists of two superconductors linked together to form a double-loop interrupted by three Josephson junctions coupled in parallel. Both superconductors are…

Superconductivity · Physics 2015-06-11 M. J. Martinez-Perez , F. Giazotto

We report the realization of multilayer three-dimensional nanobridge Josephson junctions based on Nb/NbN and Nb/TiN superconducting stacks fabricated using electron-beam lithography and chlorine-based dry etching. In this architecture, a…

Josephson junctions with iron pnictides open the way for fundamental experiments on superconductivity in these materials and their application in superconducting devices. Here, we present hybrid Josephson junctions with a…

Superconductivity · Physics 2010-11-10 S. Schmidt , S. Döring , F. Schmidl , V. Grosse , P. Seidel , K. Iida , F. Kurth , S. Haindl , I. Mönch , B. Holzapfel

We explore the generation of topological defects in the course of a dynamical phase transition in a ring with a weak link, i.e., a SSS Josephson junction, from the AdS/CFT correspondence. By setting different parameters of the junction…

High Energy Physics - Theory · Physics 2024-06-13 Zhi-Hong li , Huai-Fan Li

In existing superconducting electronic systems, Josephson junctions play a central role in processing and transmitting small-amplitude electrical signals. However, Josephson-junction-based devices have a number of limitations including: (1)…

Superconductivity · Physics 2015-06-19 Adam N. McCaughan , Karl K. Berggren

We explore the phase-dependent charge and heat current in the short Josephson junctions with two normal metal regions attached at opposite ends, formed at helical edge states of two-dimensional topological insulators (TIs). For all finite…

Superconductivity · Physics 2023-08-14 Paramita Dutta