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RESEARCH PRODUCT
Normal and mixed state Hall effect in (Hg0.9Re0.1)Ba2CaCu2O6+δ fully textured HTSC thin films
A. SalemGerhard JakobH. Adriansubject
SuperconductivityMaterials scienceCondensed matter physicsField (physics)Energy Engineering and Power TechnologyCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsPulsed laser depositionMagnetic fieldElectrical resistivity and conductivityHall effectTexture (crystalline)Electrical and Electronic EngineeringThin filmdescription
Abstract Temperature and magnetic field dependence of the Hall effect in the normal and mixed state of fully textured (Hg0.9Re0.1)Ba2CaCu2O6+δ (HgRe-1212) HTSC thin films prepared by laser ablation deposition have been studied. The longitudinal resistivity ρxx and Hall resistivity ρyx of HgRe-1212 superconductor thin films were measured for a wide range of magnetic fields from 125 mT to 12 T with the field perpendicular to the ab plane and the current in the ab plane. A sign change of the Hall resistivity is observed in fields below 3 T in the region close to the superconducting onset temperature. The temperature dependencies ρxx ∝ T and ρyx ∝ 1/T have been observed for HgRe-1212 thin films. The Hall angle θH relation cot θH = αT2 + β, remains valid for temperatures T between Tc and 200 K. In the mixed state a power-law behavior is observed, where ρyx scales to a power-law function of ρxx: ρ yx = A ρ xx β , with β increasing from 1.0 to 1.7 as the field increases from 1 to 12 T.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-10-01 | Physica C: Superconductivity |