Effect of thermal treatment on the properties of YBa2Cu3O7-x thin films with multilayer Al/Cr/Yb metals as ohmic contact electrodes

Q. X. Jia; W. A. Anderson

doi:10.1007/BF02658004

Effect of thermal treatment on the properties of YBa₂Cu₃O_7-x thin films with multilayer Al/Cr/Yb metals as ohmic contact electrodes

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

Abstract

Detailed studies were conducted on YBa₂Cu₃O_7-x thin films with multilayer Al/Cr/Yb metals as ohmic contact electrodes. Ytterbium not only provided an excellent ohmic contact to YBa₂Cu₃O_7-x thin films, but also improved the zero resistance temperature after thermal treatment of the contacts. Superconducting thin films with zero resistance temperature of around 90 K with extremely sharp resistivity transitions, contact current density greater than 1.3 x 10³A/cm², and specific contact resistivity as low as 10^-9 ohm · cm² at 77 K were achieved on yttrium stabilized ZrO₂ substrates. This occurred after contact deposition and thermal treatment at 450° C in pure oxygen for 20 min.

Original language	English
Pages (from-to)	443-447
Number of pages	5
Journal	Journal of Electronic Materials
Volume	19
Issue number	5
DOIs	https://doi.org/10.1007/BF02658004
State	Published - May 1990

Keywords

ohmic contact
Superconductor
thin film

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10.1007/BF02658004

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title = "Effect of thermal treatment on the properties of YBa2Cu3O7-x thin films with multilayer Al/Cr/Yb metals as ohmic contact electrodes",

abstract = "Detailed studies were conducted on YBa2Cu3O7-x thin films with multilayer Al/Cr/Yb metals as ohmic contact electrodes. Ytterbium not only provided an excellent ohmic contact to YBa2Cu3O7-x thin films, but also improved the zero resistance temperature after thermal treatment of the contacts. Superconducting thin films with zero resistance temperature of around 90 K with extremely sharp resistivity transitions, contact current density greater than 1.3 x 103A/cm2, and specific contact resistivity as low as 10-9 ohm · cm2 at 77 K were achieved on yttrium stabilized ZrO2 substrates. This occurred after contact deposition and thermal treatment at 450° C in pure oxygen for 20 min.",

keywords = "ohmic contact, Superconductor, thin film",

author = "Jia, \{Q. X.\} and Anderson, \{W. A.\}",

year = "1990",

month = may,

doi = "10.1007/BF02658004",

language = "English",

volume = "19",

pages = "443--447",

journal = "Journal of Electronic Materials",

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publisher = "Springer New York",

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T1 - Effect of thermal treatment on the properties of YBa2Cu3O7-x thin films with multilayer Al/Cr/Yb metals as ohmic contact electrodes

AU - Jia, Q. X.

AU - Anderson, W. A.

PY - 1990/5

Y1 - 1990/5

N2 - Detailed studies were conducted on YBa2Cu3O7-x thin films with multilayer Al/Cr/Yb metals as ohmic contact electrodes. Ytterbium not only provided an excellent ohmic contact to YBa2Cu3O7-x thin films, but also improved the zero resistance temperature after thermal treatment of the contacts. Superconducting thin films with zero resistance temperature of around 90 K with extremely sharp resistivity transitions, contact current density greater than 1.3 x 103A/cm2, and specific contact resistivity as low as 10-9 ohm · cm2 at 77 K were achieved on yttrium stabilized ZrO2 substrates. This occurred after contact deposition and thermal treatment at 450° C in pure oxygen for 20 min.

AB - Detailed studies were conducted on YBa2Cu3O7-x thin films with multilayer Al/Cr/Yb metals as ohmic contact electrodes. Ytterbium not only provided an excellent ohmic contact to YBa2Cu3O7-x thin films, but also improved the zero resistance temperature after thermal treatment of the contacts. Superconducting thin films with zero resistance temperature of around 90 K with extremely sharp resistivity transitions, contact current density greater than 1.3 x 103A/cm2, and specific contact resistivity as low as 10-9 ohm · cm2 at 77 K were achieved on yttrium stabilized ZrO2 substrates. This occurred after contact deposition and thermal treatment at 450° C in pure oxygen for 20 min.

KW - ohmic contact

KW - Superconductor

KW - thin film

UR - https://www.scopus.com/pages/publications/0025433883

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DO - 10.1007/BF02658004

M3 - Article

AN - SCOPUS:0025433883

SN - 0361-5235

VL - 19

SP - 443

EP - 447

JO - Journal of Electronic Materials

JF - Journal of Electronic Materials

IS - 5

ER -

Effect of thermal treatment on the properties of YBa₂Cu₃O_7-x thin films with multilayer Al/Cr/Yb metals as ohmic contact electrodes

Abstract

Keywords

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