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Planar Josephson junctions (JJs) based on InSb nanoflags have recently emerged as an intriguing platform in superconducting electronics. This letter presents the fabrication and investigation of superconducting quantum interference devices…

We describe a dispersive nanoSQUID magnetometer comprised of two variable thickness aluminum weak-link Josephson junctions shunted in parallel with an on-chip capacitor. This arrangement forms a nonlinear oscillator with a tunable 4-8 GHz…

Mesoscale and Nanoscale Physics · Physics 2013-04-16 E. M. Levenson-Falk , R. Vijay , N. Antler , I. Siddiqi

Superconducting granular aluminum is attracting increasing interest due to its high kinetic inductance and low dissipation, favoring its use in kinetic inductance particle detectors, superconducting resonators or quantum bits. We perform…

Superconducting quantum interference devices (SQUIDs) and related circuits made of aluminum are known to display $1/\omega$ flux noise, where $\omega$ is frequency. A recent experiment showed that the application of an external magnetic…

Quantum Physics · Physics 2023-06-22 José Alberto Nava Aquino , Rogério de Sousa

Superconducting double-loop interferometers (bi-SQUIDs) have been introduced to produce magnetic flux sensors specifically designed to exhibit ultra-highly linear voltage response as a function of the magnetic flux. These devices are very…

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

We report a study on the response of superconducitng micro-tracks and quantum interference devices (SQUIDs) to a proximal SMM film. As a test case, Langmuir-Blodgett $Mn_{12}$-ac SMM films have been grown on 2 $\mu$m wide Nb tracks and Nb…

Superconductivity · Physics 2024-01-19 Bibekananda Das , Tapas Senapati , Malaya K. Sahoo , Jogendra N. Behera , Kartik Senapati

Superconducting quantum interference devices (SQUIDs) are exceptionally sensitive magnetometers capable of detecting weak magnetic fields. Miniaturizing these devices and integrating them onto scanning probes enables high-resolution imaging…

Superconducting Quantum Interference Devices (SQUIDs) can have excellent spin sensitivity depending on their magnetic flux noise, pick-up loop diameter, and distance from the sample. We report a family of scanning SQUID susceptometers with…

We report measurements on two superconducting flux qubits coupled to a readout Superconducting QUantum Interference Device (SQUID). Two on-chip flux bias lines allow independent flux control of any two of the three elements, as illustrated…

Superconductivity · Physics 2009-11-11 B. L. T. Plourde , T. L. Robertson , P. A. Reichardt , T. Hime , S. Linzen , C. -E. Wu , John Clarke

Sensitive magnetometers that can operate in high magnetic fields are essential for detecting magnetic resonance signals originating from small ensembles of quantum spins. Such devices have potential applications in quantum technologies, in…

Mesoscale and Nanoscale Physics · Physics 2021-10-13 Josiah Cochran , Giovanni Franco-Rivera , Denghui Zhang , Lei Chen , Zhen Wang , Irinel Chiorescu

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

In easy-plane magnets, the spin superfluid phase was predicted to facilitate coherent spin transport. So far, experimental evidence remains elusive. In this Letter, we propose an indirect way to sense this effect via the spin superfluid…

Mesoscale and Nanoscale Physics · Physics 2025-09-22 Yanyan Zhu , Eric Kleinherbers , Leonid Levitov , Yaroslav Tserkovnyak

Superconducting interferometers are quantum devices able to transduce a magnetic flux into an electrical output with excellent sensitivity, integrability and power consumption. Yet, their voltage response is intrinsically non-linear, a…

Superconductivity · Physics 2023-05-23 Giorgio De Simoni , Francesco Giazotto

Using superconducting quantum interference devices (SQUIDs) as basic, low-loss elements of thin-film metamaterials has one main advantage: Their resonance frequency is easily tunable by applying a weak magnetic field. The downside, however,…

Superconductivity · Physics 2013-10-22 S. Butz , P. Jung , L. V. Filippenko , V. P. Koshelets , A. V. Ustinov

A particular superconducting quantum interference device (SQUID)qubit, indicated as double SQUID qubit, can be manipulated by rapidly modifying its potential with the application of fast flux pulses. In this system we observe coherent…

Superconductivity · Physics 2012-05-08 F. Chiarello , E. Paladino , M. G. Castellano , C. Cosmelli , A. D'Arrigo , G. Torrioli , G. Falci

We designed and fabricated a new type of superconducting quantum interference device (SQUID) susceptometers for magnetic imaging of quantum materials. The 2-junction SQUID sensors employ 3D Nb nano-bridges fabricated using electron beam…

Mesoscale and Nanoscale Physics · Physics 2019-05-22 Y. P. Pan , S. Y. Wang , X. Y. Liu , Y. S. Lin , L. X. Ma , Y. Feng , Z. Wang , L. Chen , Y. H. Wang

We present a measurement protocol for a flux qubit coupled to a dc-Superconducting QUantum Interference Device (SQUID), representative of any two-state system with a controllable coupling to an harmonic oscillator quadrature, which consists…

Mesoscale and Nanoscale Physics · Physics 2008-08-18 I. Serban , B. L. T. Plourde , F. K. Wilhelm

We implement a broadly tunable phase shifter for microwaves based on superconducting quantum interference devices (SQUIDs) and study it both experimentally and theoretically. At different frequencies, a unit transmission coefficient,…

An increasing number of experiments require the use of ultrasensitive nanomechanical resonators. Relevant examples are the investigation of quantum effects in mechanical systems [1] or the detection of exceedingly small forces as in…

Instrumentation and Detectors · Physics 2010-07-12 O. Usenko , A. Vinante , G. Wijts , T. H. Oosterkamp