IEEE Transactions on Applied Superconductivity

Filter Results

Displaying Results 1 - 21 of 21
• [Front cover]

Publication Year: 2012, Article Sequence Number: 0002701
| |PDF (275 KB)
• IEEE Transactions on Applied Superconductivity publication information

Publication Year: 2012, Article Sequence Number: 0002801
| |PDF (37 KB)

Publication Year: 2012, Article Sequence Number: 0000602
| |PDF (109 KB)
• A Wideband HTS Planar Microwave Balun

Publication Year: 2012, Article Sequence Number: 1500304
Cited by:  Papers (1)
| |PDF (133 KB) | HTML

This paper presents a high-temperature superconducting (HTS) planar balun. The balun exhibits an excellent amplitude and phase balance performance. The balun was fabricated using double-sided HTS YBCO films on a 0.5-mm-thick 3-in LaAlO3 substrate. The balun demonstrates a wideband operation and a low insertion loss. The center frequency of the balun is 1.25 GHz. The return loss bandwidt... View full abstract»

• Terahertz Radiation Power Characterization and Optimization of Stack of Intrinsic Josephson Junctions

Publication Year: 2012, Article Sequence Number: 1500407
| |PDF (492 KB) | HTML

Terahertz radiation of the stack of intrinsic Josephson junctions in the mesa structure of the layered high- superconductors is analyzed and presented in this paper. The dependence of the radiated power to the geometrical parameters, cavity-waveguide boundaries, and magnetic and electric biases has been investigated. This has been done by numerical calculation of the previously proposed coupled si... View full abstract»

• A Multiloop SQUID and a SQUID Array With 1-$mu hbox{m}$ and Submicrometer Input Coils

Publication Year: 2012, Article Sequence Number: 1600105
Cited by:  Papers (6)
| |PDF (630 KB) | HTML

We have constructed a niobium multiloop SQUID current sensor and a 60-SQUID series array as a mix-and-match fabrication experiment utilizing our in-house projection stepper. The multiloop SQUID includes an input coil with a linewidth of 0.8 μm and a pitch of 1.6 μm, resulting in the mutual inductance M-1 = 1.8 μA/Φ0. The SQUID array is built on the... View full abstract»

• Crosstalk Suppression and High-Fidelity Measurement in 2-D Tunneling of Coupled Josephson Junctions

Publication Year: 2012, Article Sequence Number: 1700110
| |PDF (1237 KB) | HTML

We present a new configuration concept in which two similar Josephson junctions are coupled through a capacitor placed in parallel to a dc-superconducting quantum interference device (SQUID) to improve the characteristics of phase qubits. In real coupled quantum systems, because of mutual effects such as crosstalk, entangled quantum states cannot be independently measured. The proposed two-qubit s... View full abstract»

• Device Modeling of Superconductor Transition-Edge Sensors Based on the Two-Fluid Theory

Publication Year: 2012, Article Sequence Number: 2100212
Cited by:  Papers (4)
| |PDF (684 KB) | HTML

In order to support the design and research of sophisticated large-scale transition-edge sensor (TES) circuits, we use basic SPICE elements to develop device models for TESs based on the superfluid-normal fluid theory. In contrast to previous studies, our device model is not limited to small-signal simulation, and it relies only on device parameters that have clear physical meaning and can be easi... View full abstract»

• Optimization of High-Temperature Superconducting Coil Employing Edge Vacancies and Central Separation

Publication Year: 2012, Article Sequence Number: 3900606
Cited by:  Papers (1)
| |PDF (639 KB) | HTML

In this paper, we propose a new high-temperature superconducting (HTS) coil with shorter HTS tape length. In general, the critical current and n-value of an HTS tape depend on the applied magnetic field magnitudes and angles. Therefore, we derived fitting equations for the critical current and n-value in terms of these parameters obtained from the measurements of a Bi-2223/Ag tape at 77 K. Relativ... View full abstract»

• Generalized Electrical Image Method for Field Reconstruction

Publication Year: 2012, Article Sequence Number: 4004507
Cited by:  Papers (4)
| |PDF (1142 KB) | HTML

A technique for magnetic field reconstruction is proposed with the use of a generalized electrical image method (GEIM). The basic idea behind the GEIM is that by understanding fundamental properties of the strategic dual image (SDI) method and applying the equivalence principle on the SDI boundary, a simple form of the interior/exterior magnetic field can be determined. As an example of this techn... View full abstract»

• Self-Inductance of a Racetrack Coil

Publication Year: 2012, Article Sequence Number: 4905509
Cited by:  Papers (1)
| |PDF (169 KB) | HTML

Superconducting racetrack coils are used for magnetic levitation, magnetic resonance imaging, etc. When using racetrack coils, it is important to determine the coil characteristics (the resistance, self-inductance, mutual inductance, and distributed capacity of the coil). It is difficult to analyze the racetrack coil that has straight and semicircle parts. Therefore, the analytical solution of thi... View full abstract»

• Application of SMES to Enhance the Dynamic Performance of DFIG During Voltage Sag and Swell

Publication Year: 2012, Article Sequence Number: 5702009
Cited by:  Papers (54)
| |PDF (852 KB) | HTML

The integration of wind turbines into modern power grids has significantly increased during the last decade. Wind turbines equipped with doubly fed induction generators (DFIGs) have been dominating wind power installation worldwide since 2002. In this paper, a superconducting magnetic energy storage (SMES) unit is proposed to improve the dynamic performance of a wind energy conversion system equip... View full abstract»

• A Novel Process to Produce Amorphous Nanosized Boron Useful for $hbox{MgB}_{2}$ Synthesis

Publication Year: 2012, Article Sequence Number: 6200606
Cited by:  Papers (13)
| |PDF (553 KB) | HTML

In this paper, we report a new synthesis route to produce boron powders characterized as being amorphous and having very fine particle size. This route has been developed to improve the performances of superconducting MgB2 powders, which can be directly synthesized from this nanostructured boron precursor by following the ex-situ or the in-situ PIT method during manufacturing of tapes, ... View full abstract»

• Effects of Ball Milling on the Sintering Process and Superconducting Properties of $(hbox{MgB}_{2})_{0.96}hbox{Ni}_{0.04}$ Bulks

Publication Year: 2012, Article Sequence Number: 6800405
Cited by:  Papers (1)
| |PDF (499 KB) | HTML

Samples of (MgB2)0.96Ni0.04 prepared by mechanical alloying were sintered at 750°C for 30 min. The reactive process and generating temperature of the second phase were investigated by employing differential thermal analysis, X-ray diffraction, and scanning electronic microscopy. Corresponding microstructures and superconducting properties have also been anal... View full abstract»

• Estimation of the Instantaneously Dissipated Hysteresis Losses in Superconductors

Publication Year: 2012, Article Sequence Number: 8200209
Cited by:  Papers (2)
| |PDF (642 KB) | HTML

Cables in superconducting magnets are subjected to field-dependent losses, i.e., induced interstrand and interfilament coupling losses, and superconductor hysteresis losses. For the two kinds of induced eddy currents, analytical and numerical models are available, allowing calculating the dissipated power under various operating conditions. For the losses stemming from the superconductor magnetiza... View full abstract»

• Integral Equations for Computing AC Losses of Radially and Polygonally Arranged HTS Thin Tapes

Publication Year: 2012, Article Sequence Number: 8401006
Cited by:  Papers (11)
| |PDF (605 KB) | HTML

In this paper, we derive integral equations for radially and polygonally arranged high-temperature superconductor thin tapes, and we solve them by finite-element method. The superconductor is modeled with a nonlinear power law, which allows the possibility of considering the dependence of the parameters on the magnetic field or the position. The ac losses are computed for a variety of geometrical ... View full abstract»

• Serial Biasing of 16 Modular Circuits at 50 Gb/s

Publication Year: 2012, Article Sequence Number: 1300103
Cited by:  Papers (7)
| |PDF (303 KB) | HTML

Rapid single-flux quantum circuits are generally biased in parallel with a common ground. As the integration scale increases, the total dc bias current can become too large to be practical. Applications such as large-scale Josephson-junction circuits for petaflops computers must avoid prohibitive dc bias requirements. Serial dc bias of multiple-circuit modules enables more efficient and effective ... View full abstract»

• Hydrostatic Pressure Effects on the Critical Current of YBCO Coated Conductor Wire

Publication Year: 2012, Article Sequence Number: 8401103
Cited by:  Papers (6)
| |PDF (192 KB) | HTML

The critical current density of optimally doped bulk YBCO superconductor has been found to increase with the application of external hydrostatic pressure. This paper reports the transport measurements of the critical current (Ic) of YBCO in the form of a coated conductor (CC) wire under hydrostatic pressure up to 0.24 GPa at 77 K. No noticeable change was observed in both the Ic View full abstract»

Publication Year: 2012, Article Sequence Number: 9800801
| |PDF (1346 KB)
• IEEE Transactions on Applied Superconductivity subject categories for article numbering

Publication Year: 2012, Article Sequence Number: 0002901
| |PDF (120 KB)
• IEEE Transactions on Applied Superconductivity information for authors

Publication Year: 2012, Article Sequence Number: 0003001
| |PDF (29 KB)

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