Structural, morphological and electrical studies of lithium ion irradiated sodium potassium niobate single crystal grown by flux method

R. Saravanan, D. Rajesh, S. V. Rajasekaran, R. Perumal, M. Chitra, R. Jayavel
2013
Sodium potassium Niobate (KNN) single crystals were subjected to 7 Li ion (100 keV) implantation with different fluences (10 15 , 5 X 10 15 and 10 16 ions/cm 2 ) at normal and oblique angle of incidences. Evolution of Li ion impact on surface and structural properties of KNN sample have been ascertained by AFM and XRD spectra. The decrease in crystallinity of KNN single crystals on 7 Li ion implantation and SEM analysis show dramatic changes in the surface observed. AFM observation shows that
more » ... vation shows that the normal angle incidence creates more number of defects in the implanted region whereas oblique angle incidence (θ=30°) creates strain layer closer to the surface and roughness values increase after irradiation.
doi:10.1063/1.4791337 fatcat:sl2pusfsfjfuhbpkofy57hes6a