NUMERICAL-ANALYSIS OF INFLUENCE OF SURFACE-BARRIER ON CURRENT-VOLTAGE CHARACTERISTICS FOR NARROW SUPERCONDUCTING LINES

被引：6

作者：

ANDOH, H ^{[1
]}

KUSUNOKI, M ^{[1
]}

FUJIMAKI, A ^{[1
]}

HAYAKAWA, H ^{[1
]}

机构：

[1] NAGOYA UNIV,DEPT ELECTR ENGN,CHIKUSA KU,NAGOYA,AICHI 46401,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1995年 / 34卷 / 4A期

关键词：

SURFACE BARRIER; CRITICAL CURRENT; SUPERCONDUCTING NARROW LINE; THIN FILM; VORTEX; CURRENT-VOLTAGE CHARACTERISTICS; CALCULATION;

D O I：

10.1143/JJAP.34.L408

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The variation of critical current density with reduced line width and the temperature dependence of voltage for superconducting narrow lines are calculated theoretically. Critical currents of superconducting narrow lines increase progressively as the lines become narrower. The surface barriers for superconducting narrow lines are discussed in order to understand the progressive increase in critical currents of superconducting narrow lines. Furthermore, the thermally activated flux lines jumping over the surface barrier are discussed ill order to understand the temperature dependence of voltage for superconducting narrow lines. The results of calculation using the surface barriers agree well with experimental results.

引用

页码：L408 / L411

页数：4

共 15 条

[1] SUBMICROMETER-SCALE PATTERNING OF SUPERCONDUCTING NB FILMS USING FOCUSED ION-BEAM [J].

AKAIKE, H ;

FUJIMAKI, A ;

TAKAI, Y ;

HAYAKAWA, H .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1992, 31 (4A) :L410-L412

[2] HARD SUPERCONDUCTIVITY - THEORY OF MOTION OF ABRIKOSOV FLUX LINES [J].

ANDERSON, PW ;

KIM, YB .

REVIEWS OF MODERN PHYSICS, 1964, 36 (1P1) :39-&

[3]

[Anonymous], PRINCIPLES SUPERCOND

[4] CRITICAL CURRENTS IN SUBMICRON YBa2Cu3O7 LINES [J].

Assink, H. ;

v.d. Harg, A. J. M. ;

Schep, C. M. ;

Chen, N. Y. ;

v.d. Marel, D. ;

Hadley, P. ;

v.d. Drift, E. W. J. M. ;

Mooij, J. E. .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1993, 3 (01) :2983-2985

[5] MAGNETIZATION OF HARD SUPERCONDUCTORS [J].

BEAN, CP .

PHYSICAL REVIEW LETTERS, 1962, 8 (06) :250-+

[6] CRITICAL-CURRENT BEHAVIOR IN NARROW THIN-FILM SUPERCONDUCTORS [J].

HUNT, TK .

PHYSICAL REVIEW, 1966, 151 (01) :325-+

[7] OBSERVATION OF ULTRAHIGH CRITICAL CURRENT DENSITIES IN HIGH-TC SUPERCONDUCTING BRIDGE CONSTRICTIONS [J].

JIANG, H ;

HUANG, Y ;

HOW, H ;

ZHANG, S ;

VITTORIA, C ;

WIDOM, A ;

CHRISEY, DB ;

HORWITZ, JS ;

LEE, R .

PHYSICAL REVIEW LETTERS, 1991, 66 (13) :1785-1788

[8]

KIM YB, 1962, PHYS REV LETT, V9, P309

[9]

KUSUNOKI M, UNPUB JPN J APPL PHY

[10]

LEE LH, 1994, IEEE T APPL SUPERCON, V14, P41

← 1 2 →