Effect of BaZrO3 addition and film growth on superconducting properties of (Nd, Eu, Gd)Ba2Cu3Oy thin films

Yusuke Ichino, Yutaka Yoshida, Kouichi Inoue, Toshinori Ozaki, Yoshiaki Takai, Kaname Matsumoto, Masashi Mukaida, Ryusuke Kita, Ataru Ichinose, Shigeru Horii

Research output: Contribution to journalArticle

Abstract

We report that (Nd, Eu, Gd)Ba2Cu3Oy (NEG) films grown by low temperature growth (LTG) technique exhibit excellent superconducting properties in magnetic fields. In this study, we aim to improve the superconducting properties of NEG films by means of a modified LTG technique (mLTG) in which the surface of a highly c-axis oriented NEG seed layer is decorated by BaZrO3 (BZO) nanodots and an NEG upper layer on the seed layer is deposited at relatively low substrate temperature by using a BZO doped NEG123 target. From magnetic field and angular dependence of Jc, even Jc peak around,B//c-axis of an LTG-NEG films including BZO was larger than that of LTG-NEG without BZO. Furthermore, the mLTG-NEG films showed larger Jc peak than the LTG-NEG films with BZO and the Jc peak increased with increasing the BZO nanodots density. TEM images clarified that these films included BZO nanorods with a diameter of 5∼10 nm and the number density increased by introducing the BZO nanodots. Therefore, we concluded that the mLTG enabled to improve the superconducting properties due to control the configuration of BZO nanorods in the films.

Original languageEnglish
Article number5153241
Pages (from-to)3144-3147
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume19
Issue number3
DOIs
Publication statusPublished - Jun 1 2009

Fingerprint

Film growth
Growth temperature
Thin films
thin films
Nanorods
nanorods
Seed
seeds
Magnetic fields
magnetic fields
Transmission electron microscopy
transmission electron microscopy
Substrates
configurations

All Science Journal Classification (ASJC) codes

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

Cite this

Effect of BaZrO3 addition and film growth on superconducting properties of (Nd, Eu, Gd)Ba2Cu3Oy thin films. / Ichino, Yusuke; Yoshida, Yutaka; Inoue, Kouichi; Ozaki, Toshinori; Takai, Yoshiaki; Matsumoto, Kaname; Mukaida, Masashi; Kita, Ryusuke; Ichinose, Ataru; Horii, Shigeru.

In: IEEE Transactions on Applied Superconductivity, Vol. 19, No. 3, 5153241, 01.06.2009, p. 3144-3147.

Research output: Contribution to journalArticle

Ichino, Y, Yoshida, Y, Inoue, K, Ozaki, T, Takai, Y, Matsumoto, K, Mukaida, M, Kita, R, Ichinose, A & Horii, S 2009, 'Effect of BaZrO3 addition and film growth on superconducting properties of (Nd, Eu, Gd)Ba2Cu3Oy thin films', IEEE Transactions on Applied Superconductivity, vol. 19, no. 3, 5153241, pp. 3144-3147. https://doi.org/10.1109/TASC.2009.2018207
Ichino, Yusuke ; Yoshida, Yutaka ; Inoue, Kouichi ; Ozaki, Toshinori ; Takai, Yoshiaki ; Matsumoto, Kaname ; Mukaida, Masashi ; Kita, Ryusuke ; Ichinose, Ataru ; Horii, Shigeru. / Effect of BaZrO3 addition and film growth on superconducting properties of (Nd, Eu, Gd)Ba2Cu3Oy thin films. In: IEEE Transactions on Applied Superconductivity. 2009 ; Vol. 19, No. 3. pp. 3144-3147.
@article{a181577f22c6469b8661a9b4d3950c67,
title = "Effect of BaZrO3 addition and film growth on superconducting properties of (Nd, Eu, Gd)Ba2Cu3Oy thin films",
abstract = "We report that (Nd, Eu, Gd)Ba2Cu3Oy (NEG) films grown by low temperature growth (LTG) technique exhibit excellent superconducting properties in magnetic fields. In this study, we aim to improve the superconducting properties of NEG films by means of a modified LTG technique (mLTG) in which the surface of a highly c-axis oriented NEG seed layer is decorated by BaZrO3 (BZO) nanodots and an NEG upper layer on the seed layer is deposited at relatively low substrate temperature by using a BZO doped NEG123 target. From magnetic field and angular dependence of Jc, even Jc peak around,B//c-axis of an LTG-NEG films including BZO was larger than that of LTG-NEG without BZO. Furthermore, the mLTG-NEG films showed larger Jc peak than the LTG-NEG films with BZO and the Jc peak increased with increasing the BZO nanodots density. TEM images clarified that these films included BZO nanorods with a diameter of 5∼10 nm and the number density increased by introducing the BZO nanodots. Therefore, we concluded that the mLTG enabled to improve the superconducting properties due to control the configuration of BZO nanorods in the films.",
author = "Yusuke Ichino and Yutaka Yoshida and Kouichi Inoue and Toshinori Ozaki and Yoshiaki Takai and Kaname Matsumoto and Masashi Mukaida and Ryusuke Kita and Ataru Ichinose and Shigeru Horii",
year = "2009",
month = "6",
day = "1",
doi = "10.1109/TASC.2009.2018207",
language = "English",
volume = "19",
pages = "3144--3147",
journal = "IEEE Transactions on Applied Superconductivity",
issn = "1051-8223",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "3",

}

TY - JOUR

T1 - Effect of BaZrO3 addition and film growth on superconducting properties of (Nd, Eu, Gd)Ba2Cu3Oy thin films

AU - Ichino, Yusuke

AU - Yoshida, Yutaka

AU - Inoue, Kouichi

AU - Ozaki, Toshinori

AU - Takai, Yoshiaki

AU - Matsumoto, Kaname

AU - Mukaida, Masashi

AU - Kita, Ryusuke

AU - Ichinose, Ataru

AU - Horii, Shigeru

PY - 2009/6/1

Y1 - 2009/6/1

N2 - We report that (Nd, Eu, Gd)Ba2Cu3Oy (NEG) films grown by low temperature growth (LTG) technique exhibit excellent superconducting properties in magnetic fields. In this study, we aim to improve the superconducting properties of NEG films by means of a modified LTG technique (mLTG) in which the surface of a highly c-axis oriented NEG seed layer is decorated by BaZrO3 (BZO) nanodots and an NEG upper layer on the seed layer is deposited at relatively low substrate temperature by using a BZO doped NEG123 target. From magnetic field and angular dependence of Jc, even Jc peak around,B//c-axis of an LTG-NEG films including BZO was larger than that of LTG-NEG without BZO. Furthermore, the mLTG-NEG films showed larger Jc peak than the LTG-NEG films with BZO and the Jc peak increased with increasing the BZO nanodots density. TEM images clarified that these films included BZO nanorods with a diameter of 5∼10 nm and the number density increased by introducing the BZO nanodots. Therefore, we concluded that the mLTG enabled to improve the superconducting properties due to control the configuration of BZO nanorods in the films.

AB - We report that (Nd, Eu, Gd)Ba2Cu3Oy (NEG) films grown by low temperature growth (LTG) technique exhibit excellent superconducting properties in magnetic fields. In this study, we aim to improve the superconducting properties of NEG films by means of a modified LTG technique (mLTG) in which the surface of a highly c-axis oriented NEG seed layer is decorated by BaZrO3 (BZO) nanodots and an NEG upper layer on the seed layer is deposited at relatively low substrate temperature by using a BZO doped NEG123 target. From magnetic field and angular dependence of Jc, even Jc peak around,B//c-axis of an LTG-NEG films including BZO was larger than that of LTG-NEG without BZO. Furthermore, the mLTG-NEG films showed larger Jc peak than the LTG-NEG films with BZO and the Jc peak increased with increasing the BZO nanodots density. TEM images clarified that these films included BZO nanorods with a diameter of 5∼10 nm and the number density increased by introducing the BZO nanodots. Therefore, we concluded that the mLTG enabled to improve the superconducting properties due to control the configuration of BZO nanorods in the films.

UR - http://www.scopus.com/inward/record.url?scp=68649088761&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=68649088761&partnerID=8YFLogxK

U2 - 10.1109/TASC.2009.2018207

DO - 10.1109/TASC.2009.2018207

M3 - Article

AN - SCOPUS:68649088761

VL - 19

SP - 3144

EP - 3147

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

SN - 1051-8223

IS - 3

M1 - 5153241

ER -