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We recently presented the first superconducting quantum interference device (SQUID) with single-walled carbon nanotube (CNT) Josephson junctions [1: J. P. Cleuziou, W. Wernsdorfer, V. Bouchiat, T. Ondarcuhu and M. Monthioux, Nature…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 J. -P. Cleuziou , W. Wernsdorfer , V. Bouchiat , Th. Ondarcuhu , M. Monthioux

Superconducting QUantum Interference Device (SQUID) microscopy has excellent magnetic field sensitivity, but suffers from modest spatial resolution when compared with other scanning probes. This spatial resolution is determined by both the…

A superconducting quantum interference device (SQUID) comprising 0- and $\pi$-Josephson junctions (JJs), called $\pi$-SQUID, is studied by the resistively shunted junction model. The $\pi$-SQUID shows half-integer Shapiro-steps (SS) under…

Superconductivity · Physics 2021-09-09 Michiyasu Mori , Sadamichi Maekawa

The superconducting quantum interference device (SQUID) magnetometer is one of the most sensitive experimental techniques to magnetically characterize samples with high sensitivity. Here we present a detailed discussion of possible…

Materials Science · Physics 2015-05-27 M. Sawicki , W. Stefanowicz , A. Ney

The quantum behaviour of mechanical resonators is a new and emerging field driven by recent experiments reaching the quantum ground state. The high frequency, small mass, and large quality-factor of carbon nanotube resonators make them…

Mesoscale and Nanoscale Physics · Physics 2012-09-11 B. H. Schneider , S. Etaki , H. S. J. van der Zant , G. A. Steele

A numerical model based on a lumped circuit element approximation for a bi-superconducting quantum interference device (bi-SQUID) operating in the presence of an external magnetic field is presented in this paper. Included in the model is…

We propose a technique to couple the position operator of a nano mechanical resonator to a SQUID device by modulating its magnetic flux bias. By tuning the magnetic field properly, either linear or quadratic couplings can be realized, with…

Quantum Physics · Physics 2015-06-26 Xingxiang Zhou , Ari Mizel

Superconducting QUantum Interference Device (SQUID) metamaterials are superconducting artificial media whose function relies both on their geometry and the extraordinary properties of superconductivity and the Josephson effect. Recent…

Chaotic Dynamics · Physics 2016-11-03 J. Hizanidis , N. Lazarides , G. Neofotistos , G. P. Tsironis

We investigate rf SQUIDs (Superconducting QUantum Interference Devices), coupled to a resonant input circuit, a readout tank circuit and a preamplifier, by numerically solving the corresponding Langevin equations and optimizing model…

Superconductivity · Physics 2008-03-13 Reinhold Kleiner , Dieter Koelle , John Clarke

We study theoretically the efficiency of an asymmetric superconducting quantum interference device (SQUID) which is constructed as a loop with three capacitively and resistively shunted Josephson junctions. Two junctions are placed in…

Statistical Mechanics · Physics 2021-04-27 J. Spiechowicz , J. Łuczka

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 present the prototype module of our extendible and robust multichannel SQUID magnetometer system. A multi-module arrangement can be implemented by using up to 7 modules. It is intended for high-precision measurements of biomagnetism and…

Instrumentation and Detectors · Physics 2017-08-29 Jan-Hendrik Storm , Dietmar Drung , Martin Burghoff , Rainer Körber

Superconducting quantum interference devices (SQUIDs) show great promise as quantum bits (qubits) but continue to be hindered by flux noise. The flux noise power spectra of SQUIDs go as $1/f^\alpha$, where $\alpha$ is the…

Mesoscale and Nanoscale Physics · Physics 2024-03-15 D. L. Mickelsen , Ruqian Wu , Clare C. Yu

We have designed and characterized a micro-SQUID with dispersive readout for use in low temperature scanning probe microscopy systems. The design features a capacitively shunted RF SQUID with a tunable resonance frequency from 5 to 12 GHz,…

NanoSQUIDs are quantum sensors that excel in detecting a small change in magnetic flux with high sensitivity and high spatial resolution. Here, we employ resist-free direct-write Ga+ Focused Ion Beam Induced Deposition (FIBID) techniques to…

Superconductivity · Physics 2022-03-11 Fabian Sigloch , Soraya Sangiao , Pablo Orús , José María de Teresa

We suggest using a device called the Bootstrap Superconducting Quantum Interference Device (BS-SQUID) to break the reciprocity in charge transport. This device uses magnetic flux back-action to create a nonreciprocal current-voltage…

Superconductivity · Physics 2024-07-10 Giorgio De Simoni , Francesco Giazotto

Due to the structure of the underlying SO(3) $\mathbf d$-vector order parameter, spin triplet superconductors exhibit a bulk-edge correspondence linking the circulation of supercurrent to the bulk magnetic skyrmion density, giving rise to…

Mesoscale and Nanoscale Physics · Physics 2025-08-21 Chau Dao , Eric Kleinherbers , Bjørnulf Brekke , Yaroslav Tserkovnyak

Highly reproducible Nb/Al(AlOx)/Nb Josephson junction based direct current superconducting quantum interference devices (DC SQUID) were fabricated by three dimensional etching using focused ion beam. Hysteretic and non-hysteretic DC SQUID…

Superconductivity · Physics 2011-07-05 D. Yuvaraj , Gil Bachar , Oren Suchoi , Oleg Shtempluck , Eyal Buks

We realize a superconductor-coupled quantum dot (QD) in an InSb nanosheet, a 2D platform promising for studies of topological superconductivity. The device consists of a superconductor-QD-superconductor junction, where a bottom bilayer gate…

Superconductivity · Physics 2026-02-10 Xingjun Wu , Ji-Yin Wang , Haitian Su , Han Gao , Shili Yan , Dong Pan , Jianhua Zhao , Po Zhang , H. Q. Xu

Usually, the superconducting quantum interference device (SQUID) consists of two Josephson junctions and the interference therein is modulated by a magnetic flux. In this work, we propose an electrically modulated SQUID consisting of single…

Superconductivity · Physics 2018-01-31 Yong Xu , Salah Uddin , Jun Wang , Zhongshui Ma , Jun-Feng Liu
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