# IEEE Transactions on Applied Superconductivity

### Early Access Articles

Early Access articles are made available in advance of the final electronic or print versions. Early Access articles are peer reviewed but may not be fully edited. They are fully citable from the moment they appear in IEEE Xplore.

## Filter Results

Displaying Results 1 - 23 of 23
• ### A Real Time, Automatic MCG Signal Quality Evaluation Method Using the Magnetocardiography and Electrocardiography

Publication Year: 2018, Page(s): 1
| | PDF (658 KB)

The quality of the obtained Magnetocardiogram (MCG) signal has significant influence on the reliability of deriving some important parameters, such as the interval between two R waves (RR interval), the interval between Q wave and the adjacent T wave (QT interval) and the interval between S wave and the adjacent T wave (ST interval) et al. The poor MCG signal might falsely trigger alarms frequentl... View full abstract»

• ### Properties of ferromagnetic Josephson junctions for memory applications

Publication Year: 2018, Page(s): 1
| | PDF (1280 KB)

In this work we give a characterization of the RF effect of memory switching on Nb-Al/AlOx-(Nb)-PdFe-Nb Josephson junctions as a function of magnetic field pulse amplitude and duration, alongside with an electrodynamical characterization of such junctions, in comparison with standard Nb-Al/AlOx-Nb tunnel junctions. The use of microwaves to tune the switching parameters of magnetic Josephson juncti... View full abstract»

• ### A 32-bit 4$times$4 Bit-Slice RSFQ Matrix Multiplier

Publication Year: 2018, Page(s): 1
| | PDF (529 KB)

A 32-bit 4$times$4 bit-slice RSFQ matrix multiplier is proposed. The multiplier mainly consists of bit-slice multipliers and bit-slice adders. The multiplication of unsigned integer matrixes is implemented by control signals. The matrix multiplier used synchronous concurrent-flow clocking. The results show that 16-bit bit-slice processing has the least latency at 10 G... View full abstract»

• ### A multi-terminal superconducting-ferromagnetic device with magnetically-tunable supercurrent for memory application

Publication Year: 2018, Page(s): 1
| | PDF (189 KB)

We report fabrication and testing at 4.2 K of four-terminal SF1IF2S1IS2 devices, where S denotes a superconductor (Nb), F1,2 denote ferromagnetic material (permalloy (Py) and Ni respectively), and I denotes an insulator (AlOx). The F1IF2 structure plays a role of a pseudo-spin valve, in which the magnetization vector of the Py layer can be switched either by an externally applied magnetic field, o... View full abstract»

• ### Anomalous Supercurrent Modulation in Josephson Junctions with Ni-Based Barriers

Publication Year: 2018, Page(s): 1
| | PDF (1152 KB)

We investigate the supercurrent transport characteristics of Ni-barrier Josephson junctions with various barrier multilayer structures. Our device fabrication and magneto-electrical measurement methods provide high enough statistics and rigor necessary for the detailed characterization of magnetic Josephson junctions. As a result, we obtain the oscillatory critical current as a function of Ni thic... View full abstract»

• ### High-Gradient Magnetic Field for Magnetic Nanoparticles Drug Delivery System

Publication Year: 2018, Page(s): 1
| | PDF (1058 KB)

Magnetic nanoparticles (MNPs), which can be transported through the vascular system and concentrated to the specific position of the body under the external magnetic field, are attracting increasing attention in tumor treatment. The MNPs should work at high gradient magnetic field for generating the magnetic forces to overcome the hydrodynamic drag force acting on the nanoparticles from the blood ... View full abstract»

• ### Energy Efficient Superconducting Neural Networks for High-Speed Intellectual Data Processing Systems

Publication Year: 2018, Page(s): 1
| | PDF (702 KB)

We present the results of circuit simulations for the adiabatic flux-operating neuron. The proposed cell with a one-shot calculation of activation function is based on a modified single-junction superconducting quantum interferometer. In comparison, functionally equivalent elements of the artificial neural network in the semiconductor-based implementations consist of approximately 20 transistors. ... View full abstract»

• ### High-Temperature Superconducting Periodic Transmission Line

Publication Year: 2018, Page(s): 1
| | PDF (1171 KB)

In this paper, a high-temperature superconducting (HTS) transmission line periodically loaded with small insulator gaps is studied in order to investigate its microwave characteristics. We calculate dispersion and impedance equations for both cases of infinite and finite periodic structures. For the infinitely long periodic structure, the method of analysis is based on the ABCD matrix representati... View full abstract»

• ### Researches on High Current and Instantaneous Impulse Characteristics of a Flux-Coupling Type SFCL with pancake coils

Publication Year: 2018, Page(s): 1
| | PDF (1624 KB)

Resistive Superconducting Current Limiter (RSFCL) is a focus in the development of current limit technology, especially in the field of AC transmission. It has a significant effect of limiting current. However, the traditional double-wound non-inductive pancake coil has an inevitable drawback. Due to its special structure the flashover would occur easily during the fault in high voltage envi-ronme... View full abstract»

• ### Design of a Combined Screening and Damping Layer for a 10 MW Class Wind Turbine HTS Synchronous Generator

Publication Year: 2018, Page(s): 1
| | PDF (1464 KB)

This paper is focused on design of a single protection layer to cover both screening and damping characteristics of a large scale high temperature superconducting (HTS) wind turbine synchronous generator under sudden short circuit conditions. Due to small synchronous reactance of HTS generators, short circuit condition causes substantial fault current in the stator windings which produces high unb... View full abstract»

• ### Intrinsic Jitter in Photon Detection by Straight Superconducting Nanowires

Publication Year: 2018, Page(s): 1
| | PDF (544 KB)

Timing jitter inherent in photon detection by superconducting nanowire single-photon detectors has different values and behave differently for detection events originating in bends and in straights of nanowires. Generally, jitter is larger for events in bends. Although, for typical meandering nanowire, contribution of bends to the integral jitter is almost negligible due to small geometric weight ... View full abstract»

• ### Fabrication and characterization of SQUIDs with Nb/Nb$_{n}$Si$_{1-x}$/Nb junctions

Publication Year: 2018, Page(s): 1
| | PDF (341 KB)

Superconducting quantum interference devices (SQUIDs) with 3 μm $times$ 3 μm or 4 μm $times$ 4 μm self shunted Nb/Nb$_{n}$Si$_{1-x}$/Nb Josephson junctions are designed and fabricated. By adjusting the Nb content and thickness of the Nb/Nb View full abstract»

• ### Comparison of the Electric Noise Properties of Novel Superconductive Materials for Electronics Applications

Publication Year: 2018, Page(s): 1
| | PDF (645 KB)

The high transition temperature of recently discovered iron-based and electron-doped superconductors makes them interesting for advanced electronic applications. However, the complex conduction mechanisms responsible for the appearance of the superconducting state may strongly affect the devices ultimate performances. Noise spectroscopy is a non-destructive technique that allows investigating in d... View full abstract»

• ### Prototype HTS Quadrupole Magnet for the In-flight Fragment Separator of RISP

Publication Year: 2018, Page(s): 1
| | PDF (533 KB)

The Rare Isotope Science Project (RISP) for constructing a heavy ion accelerator complex was launched in 2011 in Korea. As one of the rare isotope production systems, an in-flight fragment (IF) separator system will be installed for RISP. We plan to use high-temperature superconducting (HTS) quadrupole magnets in the forepart of the IF separator to cool efficiently the magnets from large radiation... View full abstract»

• ### Influence of Magnetic Flux Trapped in Moats on Superconducting Integrated Circuit Operation

Publication Year: 2018, Page(s): 1
| | PDF (7320 KB)

The influence of a trapped flux quantum in a superconducting ground plane hole, called a moat, on superconducting circuit operation was analyzed. We devised a calculation model to estimate the magnetic flux threading a signal line of a superconducting integrated circuit by the trapped flux quantum in a moat placed near the signal line by using a conventional inductance extraction tool. Assuming on... View full abstract»

• ### Andreev Spectroscopy of Molecular States in Resonant and Charge Accumulation Regime

Publication Year: 2018, Page(s): 1
| | PDF (487 KB)

Molecular electronics represents the ultimate step of the miniaturization process of the integrated circuits. Including molecules in manmade devices may introduce novel functionalities in nanodevices, such as the possibility to interact with biological environments with tremendous implications in several fields. With these motivations, we present a Bogoliubov-de Gennes description of the transport... View full abstract»

• ### Superconducting Spintronics in the Presence of Spin-Orbital Coupling

Publication Year: 2018, Page(s): 1
| | PDF (1975 KB)

We study physical phenomena in $varphi_0$-junction with direct coupling between magnetic moment and Josephson current. By using a realistic model of Josephson junction including quasiparticle and displacement current, we simulate the IV-characteristics together with magnetic precession. It is demonstrated that a character of precession essentially change in the voltag... View full abstract»

• ### N-DOPED SURFACES OF SUPERCONDUCTING NIOBIUM CAVITIES AS A DISORDERED COMPOSITE

Publication Year: 2018, Page(s): 1
| | PDF (649 KB)

The Q-factor of superconducting accelerating cavities can be substantially improved by a special heat treatment under N2 atmosphere (N-doping). Recent experiments at Fermi National Laboratory investigated the dependence of Q on the RF frequency and showed, unexpectedly, both an increase and a decrease with the RF field amplitude. This paper shall explain this finding by extending a previously prop... View full abstract»

• ### Anomalous Switching Current Distributions in Superconducting Weak Links

Publication Year: 2018, Page(s): 1
| | PDF (324 KB)

We analyze the problem of supercurrent instability in highly transparent weak links. We identify several macroscopic quantum tunneling (MQT) regimes and predict a non-trivial non-monotonous dependence of the switching current distribution on temperature which can be observed in MQT experiments with transparent superconducting weak links. View full abstract»

• ### Design, Fabrication and Testing of MgB2/Fe Racetrack Coils

Publication Year: 2018, Page(s): 1
| | PDF (583 KB)

We fabricated four superconducting racetrack coils wound by bare in-situ MgB2/Fe mono and multi-filamentary wires produced in our laboratory by using the wind and react method. Transport measurements in self-field were performed in a liquid helium dewar. The magnetic field flux density B = 25 mT for I = 92 A was measured to verify how the current flowed inside the coil for one of the coils by mean... View full abstract»

• ### Simulation of the Transport and Magnetization Loss in Bi2223 High Temperature Superconducting Composite Conductors

Publication Year: 2018, Page(s): 1
| | PDF (682 KB)

The development of high temperature superconductors (HTS) brings us a new material to make high field magnets. Some conceptual HTS composite conductors have been developed for large-scale magnets with high field, such as fusion magnets. In this paper, we propose three models of Bi2223 high temperature superconducting composite conductors that may be applied to the China Fusion Engineering Test Rea... View full abstract»

• ### SmartCoil - Concept of a full Scale Demonstrator of a Shielded Core Type Superconducting Fault Current Limiter

Publication Year: 2016, Page(s): 1
| | PDF (696 KB)

Within a German government funded project with the partners Siemens and KIT we present the concept and first results for a full scale inductive superconducting fault current limiter. It is based on the well known shielded core concept but does not need the deployment of an iron core. Aim of the project is construction and test of one phase with a nominal current I = 600 A and a voltage of U = 10 k... View full abstract»

• ### The Present Status and Progress of the CHMFL 40 T Hybrid Magnet

Publication Year: 2014, Page(s): 1
| | PDF (177 KB)

The development of new high magnetic field facilities in the Chinese High Magnet Field Laboratory (CHMFL) will soon be completed according to the present situation. For the construction of the 40 T hybrid magnet, which will be the highest magnetic field facility in China, great progress has been achieved so far, for example, the engineering design of the resistive insert composed of six Florida-Bi... 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