High-critical-current-density epitaxial films of SmBa2Cu 3O7-x in high fields

Yutaka Yoshida; Kaname Matsumoto; Yusuke Ichino; Masakazu Itoh; Ataru Ichinose; Shigeru Horii; Masashi Mukaida; Yoshiaki Takai

doi:10.1143/JJAP.44.L129

High-critical-current-density epitaxial films of SmBa₂Cu ₃O_7-x in high fields

Yutaka Yoshida, Kaname Matsumoto, Yusuke Ichino, Masakazu Itoh, Ataru Ichinose, Shigeru Horii, Masashi Mukaida, Yoshiaki Takai

Research output: Contribution to journal › Article › peer-review

51 Citations (Scopus)

Abstract

The critical current density (J_c) and irreversibility field (B_irr) of epitaxial SmBa₂Cu₃O_7-x (SmBCO) films are reported. The B_irr and J_c of these films deposited on MgO(100) substrates by pulsed-laser deposition depend critically on the substrate temperature. The use of a thin SmBCO seed layer grown at a high substrate temperature enabled us to obtain fully c-axis-oriented SmBCO films at relatively low temperatures, resulting in a high J_c of 1.7 × 10⁵ A/cm² of B ∥ c at 5 T and 77 K. This value is as high as that of the optimized NbTi superconducting wires achieved at 5 T and 4.2 K.

Original language	English
Pages (from-to)	L129-L132
Journal	Japanese Journal of Applied Physics
Volume	44
Issue number	1-7
DOIs	https://doi.org/10.1143/JJAP.44.L129
Publication status	Published - 2005

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/JJAP.44.L129

Cite this

@article{e415c38aafd64a7dabc8a0ac8fa0cecd,

title = "High-critical-current-density epitaxial films of SmBa2Cu 3O7-x in high fields",

abstract = "The critical current density (Jc) and irreversibility field (Birr) of epitaxial SmBa2Cu3O7-x (SmBCO) films are reported. The Birr and Jc of these films deposited on MgO(100) substrates by pulsed-laser deposition depend critically on the substrate temperature. The use of a thin SmBCO seed layer grown at a high substrate temperature enabled us to obtain fully c-axis-oriented SmBCO films at relatively low temperatures, resulting in a high Jc of 1.7 × 105 A/cm2 of B ∥ c at 5 T and 77 K. This value is as high as that of the optimized NbTi superconducting wires achieved at 5 T and 4.2 K.",

author = "Yutaka Yoshida and Kaname Matsumoto and Yusuke Ichino and Masakazu Itoh and Ataru Ichinose and Shigeru Horii and Masashi Mukaida and Yoshiaki Takai",

year = "2005",

doi = "10.1143/JJAP.44.L129",

language = "English",

volume = "44",

pages = "L129--L132",

journal = "Japanese Journal of Applied Physics",

issn = "0021-4922",

publisher = "The Japan Society of Applied Physics",

number = "1-7",

}

TY - JOUR

T1 - High-critical-current-density epitaxial films of SmBa2Cu 3O7-x in high fields

AU - Yoshida, Yutaka

AU - Matsumoto, Kaname

AU - Ichino, Yusuke

AU - Itoh, Masakazu

AU - Ichinose, Ataru

AU - Horii, Shigeru

AU - Mukaida, Masashi

AU - Takai, Yoshiaki

PY - 2005

Y1 - 2005

N2 - The critical current density (Jc) and irreversibility field (Birr) of epitaxial SmBa2Cu3O7-x (SmBCO) films are reported. The Birr and Jc of these films deposited on MgO(100) substrates by pulsed-laser deposition depend critically on the substrate temperature. The use of a thin SmBCO seed layer grown at a high substrate temperature enabled us to obtain fully c-axis-oriented SmBCO films at relatively low temperatures, resulting in a high Jc of 1.7 × 105 A/cm2 of B ∥ c at 5 T and 77 K. This value is as high as that of the optimized NbTi superconducting wires achieved at 5 T and 4.2 K.

AB - The critical current density (Jc) and irreversibility field (Birr) of epitaxial SmBa2Cu3O7-x (SmBCO) films are reported. The Birr and Jc of these films deposited on MgO(100) substrates by pulsed-laser deposition depend critically on the substrate temperature. The use of a thin SmBCO seed layer grown at a high substrate temperature enabled us to obtain fully c-axis-oriented SmBCO films at relatively low temperatures, resulting in a high Jc of 1.7 × 105 A/cm2 of B ∥ c at 5 T and 77 K. This value is as high as that of the optimized NbTi superconducting wires achieved at 5 T and 4.2 K.

UR - http://www.scopus.com/inward/record.url?scp=17544368436&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=17544368436&partnerID=8YFLogxK

U2 - 10.1143/JJAP.44.L129

DO - 10.1143/JJAP.44.L129

M3 - Article

AN - SCOPUS:17544368436

SN - 0021-4922

VL - 44

SP - L129-L132

JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

IS - 1-7

ER -

High-critical-current-density epitaxial films of SmBa₂Cu ₃O_7-x in high fields

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this