6533b7dcfe1ef96bd1271df5

RESEARCH PRODUCT

Transport anisotropy and of thin films

H. SchneiderH. AdrianA. ZakharovMartin Jourdan

subject

SuperconductivityMaterials scienceSpin statesCondensed matter physicsCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsElectrical resistivity and conductivityCondensed Matter::SuperconductivitySinglet stateElectrical and Electronic EngineeringThin filmCurrent (fluid)AnisotropyCritical field

description

Abstract The resistivity R ( T ) of superconducting UNi 2 Al 3 thin films shows a pronounced dependence on the current direction. Specifically, the superconducting transition temperature T c is directional dependent as well as the influence of the magnetic ordering on the transport properties. Also the upper critical field B c 2 ( Θ , T ) is moderately influenced by the probe current direction. These anisotropies are discussed in the framework of multiband superconductivity. The initial slope of the upper critical field B c 2 ′ ( T ) provides evidence for a spin singlet state.

https://doi.org/10.1016/j.physb.2005.01.310