# IEEE Transactions on Applied Superconductivity

## Filter Results

Displaying Results 1 - 25 of 32
• ### [Front cover]

Publication Year: 2014, Article Sequence Number: 0001901
| PDF (220 KB)

Publication Year: 2014, Article Sequence Number: 0002002
| PDF (118 KB)
• ### Guest Editorial [Special issue on the 2013 International Superconductive Electronics Conference (ISEC)]

Publication Year: 2014, Article Sequence Number: 0002101
| PDF (23 KB) | HTML
• ### IEEE Transactions on Applied Superconductivity publication information

Publication Year: 2014, Article Sequence Number: 0002201
| PDF (135 KB)
• ### IEEE Transactions on Applied Superconductivity subject categories for article numbering

Publication Year: 2014, Article Sequence Number: 0002301
| PDF (93 KB)
• ### IEEE Transactions on Applied Superconductivity information for authors

Publication Year: 2014, Article Sequence Number: 0002401
| PDF (106 KB)
• ### Comparison of Y–Ba–Cu–O Films Irradiated With Helium and Neon Ions for the Fabricationof Josephson Devices

Publication Year: 2014, Article Sequence Number: 1100105
Cited by:  Papers (3)
| | PDF (467 KB) | HTML

We have irradiated high-quality YBa2Cu3O7-δ thin films with 90-keV helium and 175-keV neon ions to compare how ions of different mass affect electrical transport and reduce superconducting transition temperature. We measure the temperature dependence of the resistivity for films irradiated with different fluence and compare the results with Monte Carlo ion i... View full abstract»

• ### High-Speed Experimental Demonstration of Adiabatic Quantum-Flux-Parametron Gates Using Quantum-Flux-Latches

Publication Year: 2014, Article Sequence Number: 1300204
Cited by:  Papers (4)
| | PDF (457 KB) | HTML

We experimentally demonstrated high-speed logic operations of adiabatic quantum-flux-parametron (AQFP) gates through the use of quantum-flux-latches (QFLs). In QFL-based high-speed test circuits (QHTCs), the output data of the circuits under test (CUTs), which are driven by high-speed excitation currents, are stored in QFLs and are slowly read out using low-speed excitation currents. We designed a... View full abstract»

• ### Access Time and Power Dissipation of a Model 256-Bit Single Flux Quantum RAM

Publication Year: 2014, Article Sequence Number: 1300307
Cited by:  Papers (3)
| | PDF (802 KB) | HTML

Superconductor electronics offers logic circuits for high-speed data processing and high-performance computing. The main barrier to practical application is the lack of high-speed and low-power memory. It is widely believed that the most reliable and functional bit cell for superconducting memory is the vortex transitional bit cell, which was successfully used by Nagasawa in a 4-kb memory. This pa... View full abstract»

• ### Improved High-Speed Data Recorder for Superconducting Digital-RF Receivers

Publication Year: 2014, Article Sequence Number: 1300404
Cited by:  Papers (1)
| | PDF (526 KB) | HTML

A superconducting digital-RF receiver with high-ingest-rate data recording capability has been developed. The data recorder unit uses standard PC components with state-of-the-art solid-state drives (SSDs) and interfaces with the superconductor analog-to-digital converter (ADC) through a commercial FPGA board. High-speed data ingest rates exceeding 3.2 Gbps have been demonstrated successfully with ... View full abstract»

• ### Low Temperature Superconducting Tunable Bandstop Resonator and Filter Using Superconducting RF MEMS Varactors

Publication Year: 2014, Article Sequence Number: 1500709
Cited by:  Papers (2)
| | PDF (2138 KB) | HTML

A novel niobium-based superconducting RF microelectromechanical system (MEMS) varactor is presented, and its mechanical performance is characterized at both room and cryogenic temperatures. The device is amenable to integration with superconducting microelectronics (SME) technology. The RF performance of the varactor at cryogenic (4 K) temperatures indicates capacitance variations from 40 fF to 0.... View full abstract»

• ### Terahertz Applications of Hilbert-Transform Spectral Analysis

Publication Year: 2014, Article Sequence Number: 1500807
Cited by:  Papers (4)
| | PDF (792 KB) | HTML

Bridging of the terahertz gap in the electromagnetic spectrum between the microwave and infrared ranges requires a variety of new technological developments from basic elements, such as emitters and detectors, to complete systems, such as spectrum analyzers and imagers. As an example of these developments, Hilbert-transform spectral analysis of terahertz radiation sources has been demonstrated. A ... View full abstract»

• ### Highly Sensitive Liquid-Phase Detection of Biological Targets With Magnetic Markers and High $T_{\rm c}$ SQUID

Publication Year: 2014, Article Sequence Number: 1600105
Cited by:  Papers (6)
| | PDF (868 KB) | HTML

We developed a highly sensitive HTS SQUID system for liquid-phase detection of biological targets using magnetic markers. The SQUID consists of a ramp-edge Josephson junction made using an RE123-based multilayer process, and it showed a flux noise of 7.5 μΦ0/Hz1/2 in the white noise region. The 1/f noise was 14 μΦ0/Hz1/2 at f ... View full abstract»

• ### Thin-Film Microsusceptometer With Integrated Nanoloop

Publication Year: 2014, Article Sequence Number: 1600206
Cited by:  Papers (9)
| | PDF (655 KB) | HTML

We report the design and performance of thin-film microsusceptometers intended for magnetic measurements on samples at variable temperature down to the low milliKelvin range and excitation frequencies of up to about 1 MHz. The devices are realized as first-order gradiometers with two circular loops of 60- or 30-μm average diameter resulting in a total inductance of 360 or 250 pH, respective... View full abstract»

• ### Architectural Considerations in the Design of a Superconducting Quantum Annealing Processor

Publication Year: 2014, Article Sequence Number: 1700110
Cited by:  Papers (52)
| | PDF (1840 KB) | HTML

We have developed a quantum annealing processor, based on an array of tunable coupled rf-SQUID flux qubits, fabricated in a superconducting integrated circuit process. Implementing this type of processor at a scale of 512 qubits and 1472 programmable interqubit couplers and operating at ~ 20 mK has required attention to a number of considerations that one may ignore at the smaller scale of a few d... View full abstract»

• ### Copper Waveguide Cavities With Reduced Surface Loss for Coupling to Superconducting Qubits

Publication Year: 2014, Article Sequence Number: 1700207
Cited by:  Papers (1)
| | PDF (615 KB) | HTML

Significant improvements in superconducting qubit coherence times have been achieved recently with 3-D microwave waveguide cavities coupled to transmon qubits. While many of the measurements in this direction have utilized superconducting aluminum cavities, other recent work has involved qubits coupled to copper cavities with coherence times approaching 0.1 ms. The copper provides a good path for ... View full abstract»

• ### Highly Sensitive Magnetic Nanoparticle Imaging Using Cooled-Cu/HTS-Superconductor Pickup Coils

Publication Year: 2014, Article Sequence Number: 1800105
Cited by:  Papers (6)
| | PDF (662 KB) | HTML

We developed a highly sensitive measurement system of ac magnetic fields for magnetic nanoparticle imaging (MPI). First, we developed a detection system using pickup coils made of cooled Cu Litz-wire and high-critical-temperature superconductor (HTS) tape. The pickup coils were connected to a resonant capacitor in order to enhance the signal voltage generated in the pickup coils. The magnetic fiel... View full abstract»

• ### The Resonant Interaction of Intrinsic Josephson Junctions With Standing Waves

Publication Year: 2014, Article Sequence Number: 1800205
| | PDF (526 KB) | HTML

IV-characteristics of shunted microbridges made of Tl2Ba2CaCu2O8 (TBCCO) were measured. The TBCCO films were grown epitaxially on 20° misaligned LaAlO3 substrates and then covered by the gold shunting layer. Each of the microbridges consisted of about 360 shunted intrinsic Josephson junctions. Self-induced resonant particularities with ... View full abstract»

• ### Use of Pd–Fe and Ni–Fe–Nb as Soft Magnetic Layers in Ferromagnetic Josephson Junctions for Nonvolatile Cryogenic Memory

Publication Year: 2014, Article Sequence Number: 1800307
Cited by:  Papers (20)  |  Patents (1)
| | PDF (343 KB) | HTML

Josephson junctions containing ferromagnetic layers are under consideration as the basic elements for cryogenic random access memory. For memory applications, either the amplitude of the critical current or the phase shift across the junction must be controllable by changing the direction of magnetization of one or more of the ferromagnetic layers in the junction. We have measured the critical cur... View full abstract»

• ### Superconducting-Ferromagnetic Transistor

Publication Year: 2014, Article Sequence Number: 1800506
Cited by:  Papers (8)
| | PDF (536 KB) | HTML

We report experimental results on the dc and ac characterization of multiterminal SFIFSIS devices (where S, I, and F denote a superconductor (Nb), an insulator (AlOx), and a ferromagnetic material (Ni), respectively), which display transistor-like properties. We investigated two types of such superconducting-ferromagnetic transistors (SFTs): ordinary devices with a single acceptor (SIS)... View full abstract»

• ### Superconducting Quantum Arrays

Publication Year: 2014, Article Sequence Number: 1800606
Cited by:  Papers (13)
| | PDF (578 KB) | HTML

Superconducting Quantum Arrays (SQAs) based on integration of quantum cells each consisting of two Josephson-junction parallel arrays [Differential Quantum Cell (DQC)] are analyzed for applications in broadband radio frequency systems. These SQAs are capable of providing highly linear magnetic signal to voltage transfer with high dynamic range. Both detail study of the quantum cells with realistic... View full abstract»

• ### Superconducting Tunnel Junction Detectors for Analytical Sciences

Publication Year: 2014, Article Sequence Number: 2400208
Cited by:  Papers (4)
| | PDF (564 KB) | HTML

Superconducting tunnel junction (STJ) detectors exhibit superior detection performance for photons and particles at a high spectroscopic resolution of ~ 10 eV, a short dead-time (decay time) of ~ μs, a high quantum efficiency of ~ 100%, and a low detection threshold energy of less than 1 eV, which cannot be achieved by conventional detectors. The outstanding detection performance originates... View full abstract»

• ### Improved Operating Range of RSFQ-Controlled Current Steering Switches

Publication Year: 2014, Article Sequence Number: 2500106
Cited by:  Papers (2)
| | PDF (1082 KB) | HTML

For spectroscopic and imaging applications in the submillimeter wavelength band, superconducting radiation sensors are widely used. Thereby, sensor arrays with a rising number of pixels require multiplexing techniques in order to reduce the number of wires leading to the cryogenic stage. A current steering switch (CSS) provides the basis for one kind of promising code division multiplexers. It is ... View full abstract»

• ### A Novel Computer Code for Modeling Quench Protection Heaters in High-Field $\hbox{Nb}_{3}\hbox{Sn}$ Accelerator Magnets

Publication Year: 2014, Article Sequence Number: 4701810
Cited by:  Papers (10)
| | PDF (1416 KB) | HTML

This paper presents a recently developed Code for Heater Delay Analysis (CoHDA), which is a tool for modeling protection heater induced quenches in superconducting Nb3Sn high-field accelerator magnets. The CoHDA thermal model numerically computes the heat diffusion from the heater to the coil and estimates the time delay to quench initiation by comparing the coil temperature with its cr... View full abstract»

• ### A Homogeneous Superconducting Magnet System for EBIT

Publication Year: 2014, Article Sequence Number: 4901404
| | PDF (846 KB) | HTML

A homogeneous magnetic-field superconducting magnet with a room-temperature bore of 75 mm and a central field of 4.5 T was designed, manufactured, and tested. As a result of magnetic-field homogeneity considerations, the magnet is composed of a pair of split coils. Both coils are connected in series and charged with a single power supply. A bobbin with TA2 Ti alloy material was employed for reduci... View full abstract»

## Aims & Scope

IEEE Transactions on Applied Superconductivity contains articles on the applications of superconductivity and other relevant technology.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Britton L. T. Plourde
Syracuse University
bplourde@syr.edu
http://asfaculty.syr.edu/pages/phy/plourde-britton.html