6533b7d0fe1ef96bd125b5f6

RESEARCH PRODUCT

Effect of film thickness on the transport properties of MgB2 synthesized by spray pyrolysis

Chandra ShekharChandra ShekharO.n. Srivastava

subject

SuperconductivityDiffractionRange (particle radiation)Materials scienceEnergy Engineering and Power TechnologySubstrate (electronics)Condensed Matter PhysicsElectronic Optical and Magnetic Materialslaw.inventionlawImpurityElectrical resistivity and conductivityCrystalliteElectrical and Electronic EngineeringElectron microscopeComposite material

description

Abstract Polycrystalline MgB2 films of different thickness have been prepared by employing spray pyrolysis technique on MgO (1 0 0) substrate. The MgB2 and other phases have been confirmed using X-ray diffraction technique and no trace of impurities phases have been found. The resistivity behavior shows that the superconducting transition temperature lies in the range of 37–39 K with narrow transition width. The transport critical current density vary with films thickness and achieved highest value ∼1.2 × 106 A/cm2 at 20 K for 2.0 μm thick film and its values increase as thickness increases.

yearjournalcountryeditionlanguage
2011-02-01Physica C: Superconductivity
https://doi.org/10.1016/j.physc.2010.12.002