Critical current density in superconducting nb3ge and nbn films at fields up to 30 t

Mitsumasa Suzuki; Takeshi Anayama; Kazuo Watanabe; Naoki Toyota; Norio Kobayashi; Koshichi Noto; Yoshio Muto

doi:10.1143/JJAP.24.L767

Critical current density in superconducting nb₃ge and nbn films at fields up to 30 t

Mitsumasa Suzuki, Takeshi Anayama, Kazuo Watanabe, Naoki Toyota, Norio Kobayashi, Koshichi Noto, Yoshio Muto

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The superconducting critical current densities Jc of Nb₃Ge and NbN films prepared by sputtering have been studied in fields up to 30 T for the perpendicular field direction H_┴ to the film surface and up to 23 T for the parallel field direction H_//. The Nb3Ge film exhibits J_c exceeding 1 X 10⁵(1 X 10⁴) A/cm² in fields below 21(30) T for H_┴ and below 23 T for H_//. The J_c o f the NbN film for H_┴ is higher than 1 X 10⁵ A/cm² in fields below 21 T, while that for H_// is much reduced. Their pinning properties and upper critical fields H_c2 are presented.

Original language	English
Pages (from-to)	L767-L769
Journal	Japanese journal of applied physics
Volume	24
Issue number	9
DOIs	https://doi.org/10.1143/JJAP.24.L767
Publication status	Published - 1985 Sept
Externally published	Yes

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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title = "Critical current density in superconducting nb3ge and nbn films at fields up to 30 t",

abstract = "The superconducting critical current densities Jc of Nb3Ge and NbN films prepared by sputtering have been studied in fields up to 30 T for the perpendicular field direction H┴ to the film surface and up to 23 T for the parallel field direction H//. The Nb3Ge film exhibits Jc exceeding 1 X 105(1 X 104) A/cm2 in fields below 21(30) T for H┴ and below 23 T for H//. The Jc o f the NbN film for H┴ is higher than 1 X 105 A/cm2 in fields below 21 T, while that for H// is much reduced. Their pinning properties and upper critical fields Hc2 are presented.",

author = "Mitsumasa Suzuki and Takeshi Anayama and Kazuo Watanabe and Naoki Toyota and Norio Kobayashi and Koshichi Noto and Yoshio Muto",

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T1 - Critical current density in superconducting nb3ge and nbn films at fields up to 30 t

AU - Suzuki, Mitsumasa

AU - Anayama, Takeshi

AU - Watanabe, Kazuo

AU - Toyota, Naoki

AU - Kobayashi, Norio

AU - Noto, Koshichi

AU - Muto, Yoshio

PY - 1985/9

Y1 - 1985/9

N2 - The superconducting critical current densities Jc of Nb3Ge and NbN films prepared by sputtering have been studied in fields up to 30 T for the perpendicular field direction H┴ to the film surface and up to 23 T for the parallel field direction H//. The Nb3Ge film exhibits Jc exceeding 1 X 105(1 X 104) A/cm2 in fields below 21(30) T for H┴ and below 23 T for H//. The Jc o f the NbN film for H┴ is higher than 1 X 105 A/cm2 in fields below 21 T, while that for H// is much reduced. Their pinning properties and upper critical fields Hc2 are presented.

AB - The superconducting critical current densities Jc of Nb3Ge and NbN films prepared by sputtering have been studied in fields up to 30 T for the perpendicular field direction H┴ to the film surface and up to 23 T for the parallel field direction H//. The Nb3Ge film exhibits Jc exceeding 1 X 105(1 X 104) A/cm2 in fields below 21(30) T for H┴ and below 23 T for H//. The Jc o f the NbN film for H┴ is higher than 1 X 105 A/cm2 in fields below 21 T, while that for H// is much reduced. Their pinning properties and upper critical fields Hc2 are presented.

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Critical current density in superconducting nb₃ge and nbn films at fields up to 30 t

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