Open AccessEvaluation of superconducting properties for YBa2Cu3O y coated conductors fabricated by self-heating technique in Pulsed Laser Deposition method
Author(s) -
Wataru Sato,
Yuji Tsuchiya,
Yusuke Ichino,
Yutaka Yoshida
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1293/1/012033
Subject(s) - materials science , pulsed laser deposition , deposition (geology) , joule heating , substrate (aquarium) , electrical conductor , superconductivity , critical current , composite material , metal , thin film , optoelectronics , analytical chemistry (journal) , metallurgy , nanotechnology , condensed matter physics , chemistry , physics , chromatography , sediment , geology , biology , paleontology , oceanography
We fabricated YBa 2 Cu 3 O y coated conductors with 0.4 - 4.0 μm in the thickness on IBAD-MgO template deposited on Hastelloy metal substrates which were heated by a self-heating (S-H) technique in pulsed laser deposition method. The self-heating (S-H) technique is a method to heat a metal substrate by the Joule heat. In addition, preset substrate temperature ( T s ) was gradually changed during the film deposition. It is possible to suppress a -axis grains even in a thick film by the S-H technique. Critical current density ( J c ) and critical current ( I c ) reached 2.0 MA/cm 2 and 800 A/cm-width in a film with the thickness of 4.0 μm at 77 K and self-field.