6533b827fe1ef96bd1286439

RESEARCH PRODUCT

Resistive state triggered by vortex entry in YBa 2 Cu 3 O 7−δ nanostructures

Marco ArzeoReza BaghdadiRiccardo ArpaiaRiccardo ArpaiaGunta KunakovaGunta KunakovaSophie CharpentierThilo BauchShahid NawazD. GolubevFloriana Lombardi

subject

Superconducting coherence lengthSuperconductivityResistive touchscreenHigh-temperature superconductivityMaterials scienceCondensed matter physicsLondon penetration depthNanowireEnergy Engineering and Power TechnologyCondensed Matter PhysicsElectronic Optical and Magnetic Materialslaw.inventionVortexMagnetic fieldlawCondensed Matter::SuperconductivityElectrical and Electronic Engineering

description

We have realized YBa2Cu3O7-delta nanowires and nano Superconducting Quantum Interference Devices (nanoSQUID). The measured temperature dependence of the wire resistances below the superconducting transition temperature has been analyzed using a thermally activated vortex entry model valid for wires wider than the superconducting coherence length. The extracted zero temperature values of the London penetration depth, lambda(0) similar or equal to 270 +/- 15 nm, are in good agreement with the value obtained from critical current modulations as a function of an externally applied magnetic field in a nanoSQUID implementing two nanowires.

yearjournalcountryeditionlanguage
2014-11-01Physica C: Superconductivity and its Applications
https://doi.org/10.1016/j.physc.2014.06.002