Strong magnetic field dependence of the critical currents correlated to the microstructure of YBaCuO ceramics

Uri Dai; Guy Deutscher; Claude Lacour; Francine Laher-Lacour; Philippe Mocaër; Michel Laguës

doi:10.1063/1.102537

Strong magnetic field dependence of the critical currents correlated to the microstructure of YBaCuO ceramics

Uri Dai^*
, Guy Deutscher
, Claude Lacour
, Francine Laher-Lacour
, Philippe Mocaër
, Michel Laguës

^*Corresponding author for this work

School of Physics and Astronomy

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

15 Scopus citations

Abstract

Critical currents of YBaCuO ceramics were measured at 77 K by transport measurements in an applied magnetic field H. A hysteretic behavior between 10 and 10 000 G was observed. For decreasing fields, the critical current J _c obeys a power law H^-n with n ranging between 0.6 and 2.8. The exponent n is correlated with the microstructure and the average grain size of the ceramic. This power law behavior is discussed in terms of modified flux creep and flux flow regimes related to the microstructure.

Original language	English
Pages (from-to)	1284-1286
Number of pages	3
Journal	Applied Physics Letters
Volume	56
Issue number	13
DOIs	https://doi.org/10.1063/1.102537
State	Published - 1990

Access to Document

10.1063/1.102537

Cite this

@article{1675935e0049401f9f4cde9ca6da37df,

title = "Strong magnetic field dependence of the critical currents correlated to the microstructure of YBaCuO ceramics",

abstract = "Critical currents of YBaCuO ceramics were measured at 77 K by transport measurements in an applied magnetic field H. A hysteretic behavior between 10 and 10 000 G was observed. For decreasing fields, the critical current J c obeys a power law H-n with n ranging between 0.6 and 2.8. The exponent n is correlated with the microstructure and the average grain size of the ceramic. This power law behavior is discussed in terms of modified flux creep and flux flow regimes related to the microstructure.",

author = "Uri Dai and Guy Deutscher and Claude Lacour and Francine Laher-Lacour and Philippe Moca{\"e}r and Michel Lagu{\"e}s",

year = "1990",

doi = "10.1063/1.102537",

language = "אנגלית",

volume = "56",

pages = "1284--1286",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "13",

}

TY - JOUR

T1 - Strong magnetic field dependence of the critical currents correlated to the microstructure of YBaCuO ceramics

AU - Dai, Uri

AU - Deutscher, Guy

AU - Lacour, Claude

AU - Laher-Lacour, Francine

AU - Mocaër, Philippe

AU - Laguës, Michel

PY - 1990

Y1 - 1990

N2 - Critical currents of YBaCuO ceramics were measured at 77 K by transport measurements in an applied magnetic field H. A hysteretic behavior between 10 and 10 000 G was observed. For decreasing fields, the critical current J c obeys a power law H-n with n ranging between 0.6 and 2.8. The exponent n is correlated with the microstructure and the average grain size of the ceramic. This power law behavior is discussed in terms of modified flux creep and flux flow regimes related to the microstructure.

AB - Critical currents of YBaCuO ceramics were measured at 77 K by transport measurements in an applied magnetic field H. A hysteretic behavior between 10 and 10 000 G was observed. For decreasing fields, the critical current J c obeys a power law H-n with n ranging between 0.6 and 2.8. The exponent n is correlated with the microstructure and the average grain size of the ceramic. This power law behavior is discussed in terms of modified flux creep and flux flow regimes related to the microstructure.

UR - https://www.scopus.com/pages/publications/0040284667

U2 - 10.1063/1.102537

DO - 10.1063/1.102537

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:0040284667

SN - 0003-6951

VL - 56

SP - 1284

EP - 1286

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 13

ER -

Strong magnetic field dependence of the critical currents correlated to the microstructure of YBaCuO ceramics

Abstract

Access to Document

Other files and links

Fingerprint

Cite this