New insulating material for YBa2Cu3Ox/Insulator/YBa2Cu3Ox tunnel junctions

Yasuo Tazoh, Masashi Mukaida, Shitaro Miyazawa

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

BaSnO3 is proposed as a new insulating material for YBCO-SIS tunnel junctions from the viewpoint of the superconducting behavior of a layer-structured YBCO. YBCO and BaSnO3 thin films were grown in-situ by a reactive co-evaporation in oxygen radicals. XRD, AFM, and RHEED observations confirm that (001) oriented YBCO and (100) oriented BaSnO3 thin films grow epitaxially on each other. Cross-sectional TEM observations reveal that about 4 nm thick BaSnO3 thin films perfetly cover the lower YBCO thin film surface steps with a height of one unit cell length of YBCO. Tc of the lower and upper YBCO thin films is higher that 80 K.

Original languageEnglish
Pages (from-to)3343-3344
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume235-240
Issue numberPART 5
DOIs
Publication statusPublished - Jan 1 1994

Fingerprint

Tunnel junctions
Insulating materials
tunnel junctions
insulation
insulators
Thin films
thin films
Reflection high energy electron diffraction
Thick films
Reactive Oxygen Species
Evaporation
evaporation
atomic force microscopy
Transmission electron microscopy
transmission electron microscopy
Oxygen
oxygen
cells

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

New insulating material for YBa2Cu3Ox/Insulator/YBa2Cu3Ox tunnel junctions. / Tazoh, Yasuo; Mukaida, Masashi; Miyazawa, Shitaro.

In: Physica C: Superconductivity and its applications, Vol. 235-240, No. PART 5, 01.01.1994, p. 3343-3344.

Research output: Contribution to journalArticle

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