Relation between Pinning Potential and Critial Current Density of YBaCuO Superconducting Thin Films

Keiji Enpuku; Ryuich Sako; Takanobu Kisu; Keiji Yoshida

doi:10.1143/JJAP.29.L1069

Relation between Pinning Potential and Critial Current Density of YBaCuO Superconducting Thin Films

Keiji Enpuku
, Ryuich Sako
, Takanobu Kisu
, Keiji Yoshida

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

9 Citations (Scopus)

Abstract

The relation between the pinning potential and the critical current density of YBaCuO thin films in weak magnetic fields is studied experimentally. The pinning potential U is obtained by comparing the current-voltage characteristics of the film with the flux-creep theory. The values U=25–120 meV are obtained for films with the critical current density j_c(T=0)=5.3×10⁵–1.8×10⁷ A/cm². It is shown that the pinning potential increases with the increase of the critical current density. The obtained results can be qualitatively explained with the pinning model of isolated vortices.

Original language	English
Pages (from-to)	L1069-L1071
Journal	Japanese journal of applied physics
Volume	29
Issue number	7
DOIs	https://doi.org/10.1143/JJAP.29.L1069
Publication status	Published - Jul 1990

All Science Journal Classification (ASJC) codes

General Engineering
General Physics and Astronomy

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10.1143/JJAP.29.L1069

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title = "Relation between Pinning Potential and Critial Current Density of YBaCuO Superconducting Thin Films",

abstract = "The relation between the pinning potential and the critical current density of YBaCuO thin films in weak magnetic fields is studied experimentally. The pinning potential U is obtained by comparing the current-voltage characteristics of the film with the flux-creep theory. The values U=25–120 meV are obtained for films with the critical current density jc(T=0)=5.3×105–1.8×107 A/cm2. It is shown that the pinning potential increases with the increase of the critical current density. The obtained results can be qualitatively explained with the pinning model of isolated vortices.",

author = "Keiji Enpuku and Ryuich Sako and Takanobu Kisu and Keiji Yoshida",

year = "1990",

month = jul,

doi = "10.1143/JJAP.29.L1069",

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pages = "L1069--L1071",

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T1 - Relation between Pinning Potential and Critial Current Density of YBaCuO Superconducting Thin Films

AU - Enpuku, Keiji

AU - Sako, Ryuich

AU - Kisu, Takanobu

AU - Yoshida, Keiji

PY - 1990/7

Y1 - 1990/7

N2 - The relation between the pinning potential and the critical current density of YBaCuO thin films in weak magnetic fields is studied experimentally. The pinning potential U is obtained by comparing the current-voltage characteristics of the film with the flux-creep theory. The values U=25–120 meV are obtained for films with the critical current density jc(T=0)=5.3×105–1.8×107 A/cm2. It is shown that the pinning potential increases with the increase of the critical current density. The obtained results can be qualitatively explained with the pinning model of isolated vortices.

AB - The relation between the pinning potential and the critical current density of YBaCuO thin films in weak magnetic fields is studied experimentally. The pinning potential U is obtained by comparing the current-voltage characteristics of the film with the flux-creep theory. The values U=25–120 meV are obtained for films with the critical current density jc(T=0)=5.3×105–1.8×107 A/cm2. It is shown that the pinning potential increases with the increase of the critical current density. The obtained results can be qualitatively explained with the pinning model of isolated vortices.

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DO - 10.1143/JJAP.29.L1069

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SN - 0021-4922

VL - 29

SP - L1069-L1071

JO - Japanese journal of applied physics

JF - Japanese journal of applied physics

IS - 7

ER -

Relation between Pinning Potential and Critial Current Density of YBaCuO Superconducting Thin Films

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