Fabrication and Properties of High-$T_{\rm c}$ YBCO Josephson Junction and SQUID With Variable Thickness Bridges by Focused Ion Beam

Wu, Chau-Chung; Jhan, Fong-Jyun; Chen, Jau-Han; Jeng, Jin-Tsong; Chen, Kuen-Lin; Yang, Hong-Chang

doi:10.1109/tasc.2010.2100352

Cited by 13 publications

(9 citation statements)

References 17 publications

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“…This reduction decreases when the thickness of the superconducting patch increases. According to [8] and [9], YBCO superconducting thin films of 20 nm are fabricated. This is considered as an advantage of the superconductivity with respect to the normal conductivity because it allows an important scale of integration.…”

Section: E Resonant Frequency and Bandwidthmentioning

confidence: 99%

Miniaturization of microstrip patch antennas using superconducting thin films at the high temperature of transition

Belhedri

Messai

Mekimah

2014

2014 5th International Conference on Information and Communication Systems (ICICS)

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working near to the high temperature of transition of a superconducting thin film material leads to important reductions in the size of a microstrip patch antenna. A superconducting film over an isotropic substrate is taken and different values of resonant frequencies for different patch thicknesses are calculated and compared with the resonant frequency of a normal conducting patch antenna posed over the same substrate. The difference in frequency of the same sized patchs leads to reduce the size of the superconducting patch antenna to have the same frequency as the normal conducting one.

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Section: E Resonant Frequency and Bandwidthmentioning

confidence: 99%

Miniaturization of microstrip patch antennas using superconducting thin films at the high temperature of transition

Belhedri

Messai

Mekimah

2014

2014 5th International Conference on Information and Communication Systems (ICICS)

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“…Moreover, the structure in numerical simulation is divided into line units that are mainly based on one-dimensional or two-dimensional simplified methods [8,9]. Recently, the problems in the existing literature [10][11][12][13][14][15][16][17] in the study of bridge fire resistance are categorized into the following groups: (1) ermal engineering parameters and mechanical parameters of the research results are discrete. e use of single thermal parameter can lead to calculation error of the temperature field of the bridge structure, which will affect the mechanical properties of the bridge structure at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

High‐Temperature Properties of a Long‐Span Double‐Deck Suspension Bridge under a Tanker Fire

Chen

Yao³

et al. 2021

Advances in Civil Engineering

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This paper presents a numerical study on the high-temperature mechanical properties of a long-span double-deck suspension bridge. The main focus of this paper is the behavior analysis of Wuhan Yangtze River Bridge. A three-dimensional thermal model of the bridge was established by the Fire Dynamics software (FDS) to obtain the 3D temperature field distribution, and the thermal analysis result was then applied to the three-dimensional finite element model of the suspension bridge. The shortest failure time of the main cable and sling was determined to obtain the rescue time of a bridge fire. According to the calculation results of the suspension bridge under a tanker fire initiated at the upper deck of the bridge, the middle lane in the upper deck of the suspension bridge was determined to be a safe lane. Thus, the tanker should be guided to go in this lane of the bridge. The numerical analysis of the experimental results shows that when the fuel tanker is located on the upper and lower floors of the bridge, the bridge structure is affected by the fire. When the oil tanker burns in the outermost lane of the upper bridge, it will have a great impact on the main cables and slings of the bridge. When the fuel tanker burns in the lower nonmotorized lane of the bridge, it will have a great impact on the upper stiffening beam steel plates and truss rods.

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“…Among the various high-T c superconductors, YBa 2 Cu 3 O 7−x (YBCO) is the most extensively used material for superconducting electronic devices such as Josephson junctions, quantum interference devices, single flux quantum circuits, THz detectors, and bolometers [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Superconducting YBa2Cu3O7−x Thin Films on Si Wafer via YSZ/CeO2 buffer layers

Uzun

Kuran

Avci

2016

J Supercond Nov Magn

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Fabrication of reproducible superconducting YBa 2 Cu 3 O 7−x (YBCO) thin films with T c values above 85 K on Si wafers has been realized by optimizing the thin film deposition process. Prior to the deposition of YBCO thin film on (100) p-type Si wafer, YSZ and CeO 2 thin films were deposited as buffer layers by RF magnetron sputtering, and subsequently, YBCO thin film was deposited by dc magnetron sputtering. The deposition parameters such as substrate temperature, process gas pressure, Ar/O 2 ratio, and power density were optimized for all layers in order to enhance the whole structure to prevent microcrack formation caused by misfits in crystal lattice parameters and thermal expansion coefficients between Si/YSZ/CeO 2 and YBCO. Structural analyses were performed on YSZ and CeO 2 layers, and electrical and magnetic measurements were carried out on a YBCO layer by employing XRD, SEM, resistance vs. temperature, and AC magnetic susceptibility vs. temperature measurements, respectively. The YBCO layer was also patterned as microbridges in order to test the durability of the whole Si/YSZ/CeO 2 /YBCO structure during the standard photolithography and wet etching process commonly used in device applications.The work has been done in Faculty

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Fabrication and Properties of High-$T_{\rm c}$ YBCO Josephson Junction and SQUID With Variable Thickness Bridges by Focused Ion Beam

Cited by 13 publications

References 17 publications

Miniaturization of microstrip patch antennas using superconducting thin films at the high temperature of transition

Miniaturization of microstrip patch antennas using superconducting thin films at the high temperature of transition

High‐Temperature Properties of a Long‐Span Double‐Deck Suspension Bridge under a Tanker Fire

Fabrication of Superconducting YBa2Cu3O7−x Thin Films on Si Wafer via YSZ/CeO2 buffer layers

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