Journal of Material Sciences & Engineering

Subhankar Bedanta

Publications

• Research Article
  Thickness Dependent Surface Topography, Magnetic Properties and Magnetic Domain Structure of Amorphous FeTaC Thin Films
  Author(s): Camelia Das, Jumal Das, Thiruvengadam Vijayabaskaran, Subhankar Bedanta, Abhishek Talapatra, Jyoti Ranjan Mohanty and Perumal AlagarsamyCamelia Das, Jumal Das, Thiruvengadam Vijayabaskaran, Subhankar Bedanta, Abhishek Talapatra, Jyoti Ranjan Mohanty and Perumal Alagarsamy
  
  We report systematic investigation of thickness dependent surface topography, magnetic properties and magnetic domain structures of amorphous Fe80Ta8C12 (x nm) films with x=5–100 nm. All the as-deposited films fabricated directly on thermally oxidized Si substrate at ambient temperature using magnetron sputtering technique exhibit amorphous structure. The structural studies reveal that island-like structure in ultra-thin films transforms into continuous one with increasing x>10. In addition, the average surface roughness increases with increasing x, but without any systematic dependency on x. Room temperature magnetic properties illustrate that the paramagnetic nature observed for films with x<10 changes into ferromagnetic one with rectangular loops having high remanence ratio (MR/MS>97%), low coercivity (HC.. Read More»
  DOI: 10.4172/2169-0022.1000455

  Abstract PDF