Title :
Thermal and Magnetic Field Effect of Soft Under Layer for Perpendicular Media
Author :
Yoon, S. ; Lee, H. ; Kong, S. ; Oh, H. ; Kim, Y.
Author_Institution :
Samsung Adv. Inst. of Technol., Gyeonggi-Do
Abstract :
The soft under layer (SUL) is used to improve write head filed strength, field gradient and read-back signal in perpendicular magnetic media. In this study, four type SUL structures were fabricated. Samples were post-annealed and cooled to room temperature under magnetic field along radial direction. VSM, MFM and Guzik spin stand were used to analyze the magnetic properties, domain structure and noise level of the samples.
Keywords :
annealing; antiferromagnetic materials; boron alloys; cobalt alloys; cooling; ferromagnetic materials; iridium alloys; iron alloys; magnetic domains; magnetic force microscopy; magnetic noise; manganese alloys; niobium alloys; perpendicular magnetic recording; zirconium alloys; CoZrNb; CoZrNb-Ru; Guzik spin stand; IrMn-CoFeB-CoZrNb; IrMn-CoFeB-CoZrNb-Ru; MFM; VSM; annealing; antiferromagnetic layer; cooling; domain structure; ferromagnetic layer; magnetic field effect; magnetic properties; noise level; perpendicular magnetic media; soft under layer; temperature 293 K to 298 K; thermal field effect; Anisotropic magnetoresistance; Magnetic anisotropy; Magnetic domain walls; Magnetic domains; Magnetic field measurement; Magnetic force microscopy; Magnetic noise; Noise level; Perpendicular magnetic anisotropy; Perpendicular magnetic recording;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.376350
