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

doi:10.1143/JJAP.45.L419

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 journal › Article › peer-review

3 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 language	English
Pages (from-to)	L419-L421
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	45
Issue number	12-16
DOIs	https://doi.org/10.1143/JJAP.45.L419
Publication status	Published - 2006 May 17
Externally published	Yes

Keywords

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

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy (miscellaneous)
Physics and Astronomy(all)

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10.1143/JJAP.45.L419

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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.",

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author = "Karimoto, {Shin Ichi} and Hisashi Sato and Toshiki Makimoto",

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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 - 2006/5/17

Y1 - 2006/5/17

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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