What question did this study set out to answer?

This research aims to investigate the growth dynamics of Permalloy thin films on nanorippled silicon templates.

January 14, 20260 citationsOpen Access

In situ GISAXS Study of Permalloy Thin Film Growth Dynamics on Self-organized Nanorippled Si Templates

PDPraveen kumar Dubey AKAnurag KelothUniversity of Petroleum and Energy Studies SVSujatha VijayakrishnanMcGill University

Key Points

This research aims to investigate the growth dynamics of Permalloy thin films on nanorippled silicon templates.
Utilized in situ grazing incidence small angle X-ray scattering (GISAXS) for real-time observation of film deposition.
Monitored four growth regimes from template-guided to bulk-like rough film growth.
Conducted Anisotropic magnetoresistance (AMR) studies to assess magneto transport properties.
Identified a transition from conformal growth to strain-induced roughening, structural reordering, and bulk-like growth.
Demonstrated that increased film thickness reduces the AMR response due to weakened effects of surface ripples.

Abstract

Real-time growth investigation of permalloy (Py) thin film deposition on ion beam sculptured nanoripple Si template has been performed using in situ grazing incidence small angle X-ray scattering (GISAXS) technique. During film deposition, four growth regimes are observed- Template-guided conformal growth transitions into strain-induced roughening, followed by structural reordering, and finally bulk-like rough film growth. The growth behavior of the film, including its shape and spatial arrangements, has been obtained using simulation and models. Anisotropic magnetoresistance (AMR) has been performed to study the magneto transport properties of the thickness dependence of Py films on nanorippled templates. As the film thickness increases, the effect of surface ripples on its magnetic behavior weakens, which reduces the AMR response.

Perguntar à IA

Bookmark

View Full Paper