Crystallinity and surface morphology of YBCO thin films using an amorphous buffer layer deposited at a low temperature

Yoshitaka Nakamura, Tomitsugu Tsuchihata, Shin Kudo, Tsutomu Kawamata, Masashi Mukaida, Shigetoshi Ohshima

Research output: Contribution to journalConference article

Abstract

We have investigated the crystallinity and surface morphology of main YBCO films and buffer layers deposited on an MgO substrate by a low temperature buffer layer deposition technique. A significant improvement in the crystalline quality of the YBCO film is achieved when an amorphous buffer layer of 100 [nm] in thickness on bare MgO substrate annealed at 930 [°C] is crystallized by annealing temperature 950[°C] for 1 hour in an air atmosphere. The surface of main YBCO films has pyramid like large grains when YBCO films have good crystallinity. We confirmed that YBCO films grown on a well-crystallized buffer layer had better crystallinity than ones grown on bare MgO substrate.

Original languageEnglish
Pages (from-to)2717-2720
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume13
Issue number2 III
DOIs
Publication statusPublished - Jun 1 2003
Event2002 Applied Superconductivity Conference - Houston, TX, United States
Duration: Aug 4 2002Aug 9 2002

Fingerprint

Buffer layers
Surface morphology
crystallinity
buffers
Thin films
thin films
Substrates
Temperature
pyramids
Annealing
Crystalline materials
atmospheres
annealing
air
Air
temperature

All Science Journal Classification (ASJC) codes

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

Cite this

Crystallinity and surface morphology of YBCO thin films using an amorphous buffer layer deposited at a low temperature. / Nakamura, Yoshitaka; Tsuchihata, Tomitsugu; Kudo, Shin; Kawamata, Tsutomu; Mukaida, Masashi; Ohshima, Shigetoshi.

In: IEEE Transactions on Applied Superconductivity, Vol. 13, No. 2 III, 01.06.2003, p. 2717-2720.

Research output: Contribution to journalConference article

Nakamura, Yoshitaka ; Tsuchihata, Tomitsugu ; Kudo, Shin ; Kawamata, Tsutomu ; Mukaida, Masashi ; Ohshima, Shigetoshi. / Crystallinity and surface morphology of YBCO thin films using an amorphous buffer layer deposited at a low temperature. In: IEEE Transactions on Applied Superconductivity. 2003 ; Vol. 13, No. 2 III. pp. 2717-2720.
@article{a1d765f0837949d69f915f0fe415ccd4,
title = "Crystallinity and surface morphology of YBCO thin films using an amorphous buffer layer deposited at a low temperature",
abstract = "We have investigated the crystallinity and surface morphology of main YBCO films and buffer layers deposited on an MgO substrate by a low temperature buffer layer deposition technique. A significant improvement in the crystalline quality of the YBCO film is achieved when an amorphous buffer layer of 100 [nm] in thickness on bare MgO substrate annealed at 930 [°C] is crystallized by annealing temperature 950[°C] for 1 hour in an air atmosphere. The surface of main YBCO films has pyramid like large grains when YBCO films have good crystallinity. We confirmed that YBCO films grown on a well-crystallized buffer layer had better crystallinity than ones grown on bare MgO substrate.",
author = "Yoshitaka Nakamura and Tomitsugu Tsuchihata and Shin Kudo and Tsutomu Kawamata and Masashi Mukaida and Shigetoshi Ohshima",
year = "2003",
month = "6",
day = "1",
doi = "10.1109/TASC.2003.811964",
language = "English",
volume = "13",
pages = "2717--2720",
journal = "IEEE Transactions on Applied Superconductivity",
issn = "1051-8223",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "2 III",

}

TY - JOUR

T1 - Crystallinity and surface morphology of YBCO thin films using an amorphous buffer layer deposited at a low temperature

AU - Nakamura, Yoshitaka

AU - Tsuchihata, Tomitsugu

AU - Kudo, Shin

AU - Kawamata, Tsutomu

AU - Mukaida, Masashi

AU - Ohshima, Shigetoshi

PY - 2003/6/1

Y1 - 2003/6/1

N2 - We have investigated the crystallinity and surface morphology of main YBCO films and buffer layers deposited on an MgO substrate by a low temperature buffer layer deposition technique. A significant improvement in the crystalline quality of the YBCO film is achieved when an amorphous buffer layer of 100 [nm] in thickness on bare MgO substrate annealed at 930 [°C] is crystallized by annealing temperature 950[°C] for 1 hour in an air atmosphere. The surface of main YBCO films has pyramid like large grains when YBCO films have good crystallinity. We confirmed that YBCO films grown on a well-crystallized buffer layer had better crystallinity than ones grown on bare MgO substrate.

AB - We have investigated the crystallinity and surface morphology of main YBCO films and buffer layers deposited on an MgO substrate by a low temperature buffer layer deposition technique. A significant improvement in the crystalline quality of the YBCO film is achieved when an amorphous buffer layer of 100 [nm] in thickness on bare MgO substrate annealed at 930 [°C] is crystallized by annealing temperature 950[°C] for 1 hour in an air atmosphere. The surface of main YBCO films has pyramid like large grains when YBCO films have good crystallinity. We confirmed that YBCO films grown on a well-crystallized buffer layer had better crystallinity than ones grown on bare MgO substrate.

UR - http://www.scopus.com/inward/record.url?scp=0042977320&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0042977320&partnerID=8YFLogxK

U2 - 10.1109/TASC.2003.811964

DO - 10.1109/TASC.2003.811964

M3 - Conference article

AN - SCOPUS:0042977320

VL - 13

SP - 2717

EP - 2720

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

SN - 1051-8223

IS - 2 III

ER -