Influence of impurity of MgO substrates on properties of molecular beam epitaxy-grown superconducting NdBa2Cu3O 7-δ thin films

Shin Ichi Karimoto, Hisashi Sato, Toshiki Makimoto

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We prepared various MgO substrates cut from various ingots with different impurity-Ca concentrations and deposited NdBa2Cu3O 7-δ (NBCO) thin-films on them by using molecular beam epitaxy (MBE). As a result, we found that the room temperature resistivity (ρ(RT)) of NBCO thin-films and the Ca concentration in an MgO substrate are quantitatively correlated. Moreover we clarified the permissible impurity-Ca concentration in MgO substrates in terms of practical microwave applications.

Original languageEnglish
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume45
Issue number12-16
DOIs
Publication statusPublished - 2006
Externally publishedYes

Fingerprint

Molecular beam epitaxy
molecular beam epitaxy
Impurities
Thin films
impurities
Substrates
thin films
ingots
Ingots
Microwaves
microwaves
electrical resistivity
room temperature
Temperature

Keywords

  • Impurity
  • MgO substrates
  • NdBaCuO thin films
  • RE-123 thin films
  • Resistivity
  • Superconducting thin films

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

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title = "Influence of impurity of MgO substrates on properties of molecular beam epitaxy-grown superconducting NdBa2Cu3O 7-δ thin films",
abstract = "We prepared various MgO substrates cut from various ingots with different impurity-Ca concentrations and deposited NdBa2Cu3O 7-δ (NBCO) thin-films on them by using molecular beam epitaxy (MBE). As a result, we found that the room temperature resistivity (ρ(RT)) of NBCO thin-films and the Ca concentration in an MgO substrate are quantitatively correlated. Moreover we clarified the permissible impurity-Ca concentration in MgO substrates in terms of practical microwave applications.",
keywords = "Impurity, MgO substrates, NdBaCuO thin films, RE-123 thin films, Resistivity, Superconducting thin films",
author = "Karimoto, {Shin Ichi} and Hisashi Sato and Toshiki Makimoto",
year = "2006",
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language = "English",
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journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",
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TY - JOUR

T1 - Influence of impurity of MgO substrates on properties of molecular beam epitaxy-grown superconducting NdBa2Cu3O 7-δ thin films

AU - Karimoto, Shin Ichi

AU - Sato, Hisashi

AU - Makimoto, Toshiki

PY - 2006

Y1 - 2006

N2 - We prepared various MgO substrates cut from various ingots with different impurity-Ca concentrations and deposited NdBa2Cu3O 7-δ (NBCO) thin-films on them by using molecular beam epitaxy (MBE). As a result, we found that the room temperature resistivity (ρ(RT)) of NBCO thin-films and the Ca concentration in an MgO substrate are quantitatively correlated. Moreover we clarified the permissible impurity-Ca concentration in MgO substrates in terms of practical microwave applications.

AB - We prepared various MgO substrates cut from various ingots with different impurity-Ca concentrations and deposited NdBa2Cu3O 7-δ (NBCO) thin-films on them by using molecular beam epitaxy (MBE). As a result, we found that the room temperature resistivity (ρ(RT)) of NBCO thin-films and the Ca concentration in an MgO substrate are quantitatively correlated. Moreover we clarified the permissible impurity-Ca concentration in MgO substrates in terms of practical microwave applications.

KW - Impurity

KW - MgO substrates

KW - NdBaCuO thin films

KW - RE-123 thin films

KW - Resistivity

KW - Superconducting thin films

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JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

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