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Superconducting diodes, characterized by the nonreciprocal supercurrent flow, have gained significant attention for their potential in dissipationless electronics. This study presents a superconducting quantum interference device (SQUID)…

Superconductivity · Physics 2025-02-28 Xingjun Wu , Ji-Yin Wang , Haitian Su , Shili Yan , Dong Pan , Jianhua Zhao , Po Zhang , H. Q. Xu

A new type of a superconducting quantum interference device (SQUID) based on a single superconducting loop without Josephson junctions and with asymmetric link-up of current leads is proposed. This SQUID offers advantages in simplicity of…

Superconductivity · Physics 2015-06-19 A. A. Burlakov , V. L. Gurtovoi , A. I. Ilin , A. V. Nikulov , V. A. Tulin

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…

Precise gravitational measurements are vital for geophysics and inertial navigation, but compact gravimeters with high measurement bandwidth remain difficult to realize. We propose and analyze a chip-scale superconducting gravimeter in…

Quantum Physics · Physics 2026-05-04 Salman Sajad Wani , Mughees Ahmed Khan , Abrar Ahmed Naqash , Saif Al-Kuwari

Nanoscale magnetic resonance imaging (nanoMRI) aims at obtaining structure at the single molecule level. Most of the techniques for effecting a nanoMRI gradient use small permanent magnets. Here, we present a switchable magnetic field…

Mesoscale and Nanoscale Physics · Physics 2025-03-12 Leora Schein-Lubomirsky , Yarden Mazor , Rainer Stöhr , Andrej Denisenko , Amit Finkler

We report on the fabrication and electrical transport properties of superconducting quantum interference devices (SQUIDs) made from a (Bi_{1-x}Sb_x)_2Se_3 topological insulator (TI) nanoribbon (NR) connected with Pb0.5In0.5 superconducting…

Superconductivity · Physics 2018-01-25 Nam-Hee Kim , Hong-Seok Kim , Yiming Yang , Xingyue Peng , Dong Yu , Yong-Joo Doh

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

Controlling both the amplitude and phase of the quantum order parameter ({\psi}) in nanostructures is important for next-generation information and communication technologies. The long-range coherence of attractive electrons in…

Quantum Physics · Physics 2018-04-04 Roni Winik , Itamar Holzman , Emanuele G. Dalla Torre , Eyal Buks , Yachin Ivry

We report a scanning superconducting quantum interference device (SQUID) microscope in a cryogen-free dilution refrigerator with a base temperature at the sample stage of at least 30 mK. The microscope is rigidly mounted to the mixing…

Mesoscale and Nanoscale Physics · Physics 2021-09-15 D. Low , G. M. Ferguson , Alexander Jarjour , Brian T. Schaefer , Maja D. Bachmann , Philip J. W. Moll , Katja C. Nowack

Nanoscale magnets might form the building blocks of next generation memories. To explore their functionality, magnetic sensing at the nanoscale is key. We present a multifunctional combination of a scanning nanometer-sized superconducting…

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,…

We present measurements of an amplifier based on a dc superconducting quantum interference device (SQUID) with submicron Al-AlOx-Al Josephson junctions. The small junction size reduces their self-capacitance and allows for the use of…

Superconductivity · Physics 2015-05-19 M. P. DeFeo , P. Bhupathi , K. Yu , T. W. Heitmann , C. Song , R. McDermott , B. L. T. Plourde

A theory describing the operation of a superconducting nanowire quantum interference device (NQUID) is presented. The device consists of a pair of thin-film superconducting leads connected by a pair of topologically parallel ultra-narrow…

Superconductivity · Physics 2009-11-11 David Pekker , Alexey Bezryadin , David S. Hopkins , Paul M. Goldbart

We characterize the flux sensitivity of a dispersive 3D aluminum nanobridge SQUID magnetometer as a function of applied in-plane magnetic field. In zero field, we observe an effective flux noise of 17 n$\Phi_0$/Hz$^{1/2}$ with 25 MHz of…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 N. Antler , E. M. Levenson-Falk , R. Naik , Y. -D. Sun , A. Narla , R. Vijay , I. Siddiqi

It was recently experimentally proved that the superconducting counterpart of a diode, i.e., a device that realizes nonreciprocal Cooper pairs transport, can be realized by breaking the spatial and time-reversal symmetry of a system…

Superconductivity · Physics 2023-09-13 Angelo Greco , Quentin Pichard , Francesco Giazotto

Diamond is an electrical insulator in its natural form. However, when doped with boron above a critical level (~0.25 at.%) it can be rendered superconducting at low temperatures with high critical fields. Here we present the realization of…

YBa$_2$Cu$_3$O$_7$ 24$^\circ$ (30$^\circ$) bicrystal grain boundary junctions (GBJs), shunted with 60\,nm (20\,nm) thick Au, were fabricated by focused ion beam milling with widths $80\,{\rm nm} \le w \le 7.8\,\mu$m. At 4.2\,K we find…

We have studied a Superconducting Quantum Interference SQUID device made from a single layer thin film of superconducting silicon. The superconducting layer is obtained by heavily doping a silicon wafer with boron atoms using the Gas…

We developed a scanning DC SQUID microscope with novel readout electronics capable of wideband sensing RF magnetic fields from 50 to 200 MHz and simultaneously providing closed-loop response at kHz frequencies. To overcome the 20 MHz…

We report on the fabrication and characterization of microSQUID devices based on nanoscale vanadium/copper/vanadium Josephson weak links. Magnetically driven quantum interference patterns have been measured for temperatures in the 0.24 - 2…

Mesoscale and Nanoscale Physics · Physics 2013-09-06 Alberto Ronzani , Matthieu Baillergeau , Carles Altimiras , Francesco Giazotto