Fabrication of low surface resistance YBCO films and its application to microwave devices

Shigetoshi Ohshima; Katherine D. Develos; Katsufumi Ehata; Md I. Ali; Masashi Mukaida

doi:10.1016/S0921-4534(00)00172-6

Fabrication of low surface resistance YBCO films and its application to microwave devices

Shigetoshi Ohshima, Katherine D. Develos, Katsufumi Ehata, Md I. Ali, Masashi Mukaida

Research output: Contribution to journal › Conference article › peer-review

9 Citations (Scopus)

Abstract

We have examined a fabrication process of low surface resistance (Rs) YBa₂Cu₃O_7-δ (YBCO) films on CeO₂/Al₂O₃ substrates by a laser ablation technique. The surface morphology of CeO₂ films depended on the film thickness of CeO₂. A critical value of the CeO₂ film thickness at approximately 90 nm was found above which the surface roughness increased abruptly. The Rs of YBCO films also depended on the surface morphology of CeO₂ films. The Rs value of YBCO films on thinner CeO₂ films (<90 nm) was quite smaller than that of YBCO films on thicker CeO₂ films (>90 nm). We have also examined the high-temperature superconducting (HTS) antenna as one of the HTS passive devices, and measured the power handling capability. The compact cooling system for HTS patch antenna was constructed.

Original language	English
Pages (from-to)	207-213
Number of pages	7
Journal	Physica C: Superconductivity and its applications
Volume	335
Issue number	1
DOIs	https://doi.org/10.1016/S0921-4534(00)00172-6
Publication status	Published - Jun 2000
Externally published	Yes
Event	9th Japan-US Workshop on High-Tc Superconductors - Yamanashi, Jpn Duration: Oct 13 1999 → Oct 15 1999

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/S0921-4534(00)00172-6

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title = "Fabrication of low surface resistance YBCO films and its application to microwave devices",

abstract = "We have examined a fabrication process of low surface resistance (Rs) YBa2Cu3O7-δ (YBCO) films on CeO2/Al2O3 substrates by a laser ablation technique. The surface morphology of CeO2 films depended on the film thickness of CeO2. A critical value of the CeO2 film thickness at approximately 90 nm was found above which the surface roughness increased abruptly. The Rs of YBCO films also depended on the surface morphology of CeO2 films. The Rs value of YBCO films on thinner CeO2 films (<90 nm) was quite smaller than that of YBCO films on thicker CeO2 films (>90 nm). We have also examined the high-temperature superconducting (HTS) antenna as one of the HTS passive devices, and measured the power handling capability. The compact cooling system for HTS patch antenna was constructed.",

author = "Shigetoshi Ohshima and Develos, {Katherine D.} and Katsufumi Ehata and Ali, {Md I.} and Masashi Mukaida",

note = "Funding Information: This work is partially supported by the Grant-in-Aid for Scientific Research on Priority Areas of the Ministry of Education, Science, Sports and Culture, and Core Research for Evolutional Science and Technology (CREST).; 9th Japan-US Workshop on High-Tc Superconductors ; Conference date: 13-10-1999 Through 15-10-1999",

year = "2000",

month = jun,

doi = "10.1016/S0921-4534(00)00172-6",

language = "English",

volume = "335",

pages = "207--213",

journal = "Physica C: Superconductivity and its applications",

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T1 - Fabrication of low surface resistance YBCO films and its application to microwave devices

AU - Ohshima, Shigetoshi

AU - Develos, Katherine D.

AU - Ehata, Katsufumi

AU - Ali, Md I.

AU - Mukaida, Masashi

N1 - Funding Information: This work is partially supported by the Grant-in-Aid for Scientific Research on Priority Areas of the Ministry of Education, Science, Sports and Culture, and Core Research for Evolutional Science and Technology (CREST).

PY - 2000/6

Y1 - 2000/6

N2 - We have examined a fabrication process of low surface resistance (Rs) YBa2Cu3O7-δ (YBCO) films on CeO2/Al2O3 substrates by a laser ablation technique. The surface morphology of CeO2 films depended on the film thickness of CeO2. A critical value of the CeO2 film thickness at approximately 90 nm was found above which the surface roughness increased abruptly. The Rs of YBCO films also depended on the surface morphology of CeO2 films. The Rs value of YBCO films on thinner CeO2 films (<90 nm) was quite smaller than that of YBCO films on thicker CeO2 films (>90 nm). We have also examined the high-temperature superconducting (HTS) antenna as one of the HTS passive devices, and measured the power handling capability. The compact cooling system for HTS patch antenna was constructed.

AB - We have examined a fabrication process of low surface resistance (Rs) YBa2Cu3O7-δ (YBCO) films on CeO2/Al2O3 substrates by a laser ablation technique. The surface morphology of CeO2 films depended on the film thickness of CeO2. A critical value of the CeO2 film thickness at approximately 90 nm was found above which the surface roughness increased abruptly. The Rs of YBCO films also depended on the surface morphology of CeO2 films. The Rs value of YBCO films on thinner CeO2 films (<90 nm) was quite smaller than that of YBCO films on thicker CeO2 films (>90 nm). We have also examined the high-temperature superconducting (HTS) antenna as one of the HTS passive devices, and measured the power handling capability. The compact cooling system for HTS patch antenna was constructed.

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DO - 10.1016/S0921-4534(00)00172-6

M3 - Conference article

AN - SCOPUS:0033705117

SN - 0921-4534

VL - 335

SP - 207

EP - 213

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - 1

T2 - 9th Japan-US Workshop on High-Tc Superconductors

Y2 - 13 October 1999 through 15 October 1999

ER -

Fabrication of low surface resistance YBCO films and its application to microwave devices

Abstract

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