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We develop a two-dimensional (2D) Superconducting Quantum Interference Filter (SQIF) array based on recently introduced high-linearity tri-junction bi-SQUIDs. Our bi-SQUID SQIF array design is based on a tight integration of individual bi-…

Nanostructures have become an attractive subject due to many applications, particularly the photonic bandgap effect observed in photonic crystals. Nevertheless, the fabrication of such structures remains a challenge because of accurate…

Optics · Physics 2008-01-29 F. Lacour , A. Sabac , M. Spajer

The recent development of the superlattice nanowire pattern transfer (SNAP) technique allows for the fabrication of arrays of nanowires at a diameter, pitch, aspect ratio, and regularity beyond competing approaches. Here, we report the…

Materials Science · Physics 2007-05-23 E. Johnston-Halperin , R. A. Beckman , N. A. Melosh , Y. Luo , J. E. Green , J. R. Heath

In this work, we study the current phase relation ($C\Phi R$) of lithographically fabricated molybdenum germanium (MoGe) nanobridges, which is intimately linked to the nanobridge kinetic inductance. We do this by imbedding the nanobridges…

Superconductivity · Physics 2021-08-11 H. Dausy , L. Nulens , B. Raes , M. J. Van Bael , J. Van de Vondel

Hybrid semiconducting nanowire devices combining epitaxial superconductor and ferromagnetic insulator layers have been recently explored experimentally as an alternative platform for topological superconductivity at zero applied magnetic…

Mesoscale and Nanoscale Physics · Physics 2021-07-28 Samuel D. Escribano , Elsa Prada , Yuval Oreg , Alfredo Levy Yeyati

Weyl semimetals for their exotic topological properties have drawn considerable attention in many research fields. When in combination with s-wave superconductors, the supercurrent can be carried by their topological surface channels,…

Quantum Physics · Physics 2020-12-30 K. L. Chiu , D. G. Qian , J. W. Qiu , W. Y. Liu , D. Tan , V. Mosallanejad , S. Liu , Z. T. Zhang , Y. Zhao , D. P. Yu

Scalable memories that can match the speeds of superconducting logic circuits have long been desired to enable a superconducting computer. A superconducting loop that includes a Josephson junction can store a flux quantum state in…

Mesoscale and Nanoscale Physics · Physics 2020-09-30 Lei Chen , Lili Wu , Yue Wang , Yinping Pan , Denghui Zhang , Junwen Zeng , Xiaoyu Liu , Linxian Ma , Wei Peng , Yihua Wang , Jie Ren , Zhen Wang

We use a scanning nanometer-scale superconducting quantum interference device (SQUID) to image individual vortices in amorphous superconducting MoSi thin films. Spatially resolved measurements of the magnetic field generated by both…

Superconductivity · Physics 2019-09-11 L. Ceccarelli , D. Vasyukov , M. Wyss , G. Romagnoli , N. Rossi , L. Moser , M. Poggio

Superconductor-normal-superconductor (SC-N-SC) weak links enable Cooper-pair tunneling and serve as Josephson junctions (JJs) used in modern superconducting qubits. Conventional JJs rely on vertically stacked Al-AlOx-Al trilayers that are…

Quantum hardware based on circuit quantum electrodynamics makes extensive use of airbridges to suppress unwanted modes of wave propagation in coplanar-waveguide transmission lines. Airbridges also provide an interconnect enabling…

Quantum Physics · Physics 2025-03-19 T. Stavenga , L. DiCarlo

Making use of focused Ga-ion beam (FIB) fabrication technology, the evolution with device dimension of the low-temperature electrical properties of Nb nanowires has been examined in a regime where crossover from Josephson-like to insulating…

Mesoscale and Nanoscale Physics · Physics 2010-03-30 G. C. Tettamanzi , C. I. Pakes , A. Potenza , S. Rubanov , C. H. Marrows , S. Prawer

SQUID-embedded superconducting resonators are of great interest due to their potential for coupling highly scalable superconducting circuits with quantum memories based on solid-state spin ensembles. Such an application requires a high-$Q$,…

Quantum Physics · Physics 2025-01-06 Jamie A. Potter , Laith Meti , Gemma Chapman , Ed Romans , John Gallop , Ling Hao

Following significant progress in the visualization and characterization of hybrid superconducting-semiconducting systems, greatly propelled by reports of Majorana zero modes in nanowire devices, considerable attention has been devoted to…

Non-reciprocal charge transport in supercurrent diodes (SDs) polarized growing interest in the last few years for its potential applications in superconducting electronics (SCE). So far, SD effects have been reported in complex hybrid…

Mesoscale and Nanoscale Physics · Physics 2023-01-31 Federico Paolucci , Giorgio De Simoni , Francesco Giazotto

We present the preparation and measurements of nanowires of single-crystal NbSe$_2$. These nanowires were prepared on ultrathin ($\lesssim10\text{ nm}$) flakes of NbSe$_2$ mechanically exfoliated from a bulk single crystal using a process…

Superconductivity · Physics 2014-05-07 Shaun A. Mills , Neal E. Staley , Jacob J. Wisser , Chenyi Shen , Zhuan Xu , Ying Liu

Scanning Superconducting QUantum Interference Device (SQUID) microscopy is a powerful tool for imaging local magnetic properties of materials and devices, but it requires a low-vibration cryogenic environment, traditionally achieved by…

Superconductivity · Physics 2019-07-04 Logan Bishop-Van Horn , Zheng Cui , John R. Kirtley , Kathryn A. Moler

Magnetoresistance oscillations were observed on networks of superconducting ultrathin Nb nanowires presenting evidences of either thermal or quantum activated phase slips. The magnetic transport data, discussed in the framework of different…

Superconductivity · Physics 2014-10-08 C. Cirillo , S. L. Prischepa , M. Trezza , V. P. Bondarenko , C. Attanasio

The controlled growth of nanowires (NWs) with dimensions comparable to the Fermi wavelengths of the charge carriers allows fundamental investigations of quantum confinement phenomena. Here, we present studies of proximity-induced…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Jie Xiang , A. Vidan , M. Tinkham , R. M. Westervelt , Charles M. Lieber

We show how a scanning probe microscope (SPM) can be used to image electron flow through InAs nanowires, elucidating the physics of nanowire devices on a local scale. A charged SPM tip is used as a movable gate. Images of nanowire…

We report superconductivity in quasi-1D nanostructures created at the LaAlO3/SrTiO3 interface. Nanostructures having line widths w~10 nm are formed from the parent two-dimensional electron liquid using conductive atomic force microscope…