6533b839fe1ef96bd12a5a30

RESEARCH PRODUCT

Universal relationship between the penetration depth and the normal-state conductivity in YBaCuO

B. ScheyAlois LoidlB. StritzkerYu. G. GoncharovA. V. ProninAndrei PimenovGerhard JakobH. Adrian

subject

SuperconductivityCondensed Matter - Materials ScienceMaterials scienceCondensed matter physicsCondensed Matter - SuperconductivityDopingMaterials Science (cond-mat.mtrl-sci)FOS: Physical sciencesGeneral Physics and AstronomySigmaPenetration (firestop)ConductivityNormal stateLambdaSuperconductivity (cond-mat.supr-con)Condensed Matter::SuperconductivityPenetration depth

description

The absolute values of the conductivity in the normal state sigma_n and of the low temperature penetration depths lambda(0) were measured for a number of different samples of the YBaCuO family. We found a striking correlation between sigma_n and 1/lambda^2, regardless of doping, oxygen reduction or defects, thus providing a simple method to predict the superconducting penetration depth and to have an estimate of the sample quality by measuring the normal-state conductivity.

yearjournalcountryeditionlanguage
1999-08-26
10.1209/epl/i1999-00116-1http://arxiv.org/abs/cond-mat/9908383