Author:
Murase G.,Tsuchiya Y.,Ichino Y.,Yoshida Y.
Abstract
Abstract
Sm1+x
Ba2-x
Cu3O
y
, (Sm-rich) had higher critical current density (J
c) in magnetic fields and higher irreversible fields than stoichiometric SmBa2Cu3O
y
(SmBCO) thin films. In this study, to clarify the features of artificial pinning centers (APCs) doped Sm-rich films, we prepared BaHfO3 (BHO)-doped Sm1+x
Ba2-x
Cu3O
y
films with x = 0.00 ∼ 0.20 using combinatorial pulsed laser deposition (C-PLD) method on a metallic substrate and we evaluate surface morphrogies, crystal orientations and superconducting properties of the films. As a result, when x increased, the terrace width also increased. From the measurement of J
c in magnetic fields, the BHO-doped Sm-rich films showed J
c plateaus around 1 ∼ 3 T. From the angulaer dependence of J
c, the BHO-doped Sm-rich films showed J
c peak where B is parallel to c-axis. From several measurements, we discuss effects of Sm1+x
Ba2-x
Cu3O
y
films with and without BHO on the superconducting properties.
Subject
General Physics and Astronomy
Cited by
1 articles.
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