Weak link dominated anisotropy of critical current density in polycrystalline Y1Ba2Cu3O7-x thin films

F. Yang; E. Narumi; S. Patel; D. T. Shaw

doi:10.1063/1.106979

Weak link dominated anisotropy of critical current density in polycrystalline Y₁Ba₂Cu₃O_7-x thin films

F. Yang
, E. Narumi
, S. Patel
, D. T. Shaw

Department of Electrical Engineering

SUNY Buffalo

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

3 Scopus citations

Abstract

The c-axis oriented Y₁Ba₂Cu₃O _7-x thin films with different thicknesses ranging from 1000 to 4000 Å have been fabricated on polycrystalline yttria-stabilized zirconia substrates by pulse laser deposition. The thickness of the film has noticeable influence on the behavior of transport critical current densities at low magnetic field. With the thickness being reduced from 4000 to 1000 Å, the J_c(H) anisotropy changes from J_c(H_∥c) ≳ J_c(H_⊥c) to J_c(H_∥c) < J_c(H_⊥c)in the region of field less than 2 kOe. It reveals that the geometric nature of grains and grain boundaries which form Josephson weak links determines J_c(H) behavior of polycrystalline Y₁Ba₂Cu₃O_7-x thin films in the magnetic field up to several kOe.

Original language	English
Pages (from-to)	249-251
Number of pages	3
Journal	Applied Physics Letters
Volume	60
Issue number	2
DOIs	https://doi.org/10.1063/1.106979
State	Published - 1992

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@article{cdeef45b2f7e4ae98cdab7742595702f,

title = "Weak link dominated anisotropy of critical current density in polycrystalline Y1Ba2Cu3O7-x thin films",

abstract = "The c-axis oriented Y1Ba2Cu3O 7-x thin films with different thicknesses ranging from 1000 to 4000 {\AA} have been fabricated on polycrystalline yttria-stabilized zirconia substrates by pulse laser deposition. The thickness of the film has noticeable influence on the behavior of transport critical current densities at low magnetic field. With the thickness being reduced from 4000 to 1000 {\AA}, the Jc(H) anisotropy changes from Jc(H∥c) ≳ Jc(H⊥c) to Jc(H∥c) < Jc(H⊥c)in the region of field less than 2 kOe. It reveals that the geometric nature of grains and grain boundaries which form Josephson weak links determines Jc(H) behavior of polycrystalline Y1Ba2Cu3O7-x thin films in the magnetic field up to several kOe.",

author = "F. Yang and E. Narumi and S. Patel and Shaw, \{D. T.\}",

year = "1992",

doi = "10.1063/1.106979",

language = "English",

volume = "60",

pages = "249--251",

journal = "Applied Physics Letters",

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publisher = "American Institute of Physics",

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T1 - Weak link dominated anisotropy of critical current density in polycrystalline Y1Ba2Cu3O7-x thin films

AU - Yang, F.

AU - Narumi, E.

AU - Patel, S.

AU - Shaw, D. T.

PY - 1992

Y1 - 1992

N2 - The c-axis oriented Y1Ba2Cu3O 7-x thin films with different thicknesses ranging from 1000 to 4000 Å have been fabricated on polycrystalline yttria-stabilized zirconia substrates by pulse laser deposition. The thickness of the film has noticeable influence on the behavior of transport critical current densities at low magnetic field. With the thickness being reduced from 4000 to 1000 Å, the Jc(H) anisotropy changes from Jc(H∥c) ≳ Jc(H⊥c) to Jc(H∥c) < Jc(H⊥c)in the region of field less than 2 kOe. It reveals that the geometric nature of grains and grain boundaries which form Josephson weak links determines Jc(H) behavior of polycrystalline Y1Ba2Cu3O7-x thin films in the magnetic field up to several kOe.

AB - The c-axis oriented Y1Ba2Cu3O 7-x thin films with different thicknesses ranging from 1000 to 4000 Å have been fabricated on polycrystalline yttria-stabilized zirconia substrates by pulse laser deposition. The thickness of the film has noticeable influence on the behavior of transport critical current densities at low magnetic field. With the thickness being reduced from 4000 to 1000 Å, the Jc(H) anisotropy changes from Jc(H∥c) ≳ Jc(H⊥c) to Jc(H∥c) < Jc(H⊥c)in the region of field less than 2 kOe. It reveals that the geometric nature of grains and grain boundaries which form Josephson weak links determines Jc(H) behavior of polycrystalline Y1Ba2Cu3O7-x thin films in the magnetic field up to several kOe.

UR - https://www.scopus.com/pages/publications/36449006675

U2 - 10.1063/1.106979

DO - 10.1063/1.106979

M3 - Article

AN - SCOPUS:36449006675

SN - 0003-6951

VL - 60

SP - 249

EP - 251

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 2

ER -

Weak link dominated anisotropy of critical current density in polycrystalline Y₁Ba₂Cu₃O_7-x thin films

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