Title :
Magnetic switching volumes of CoSm thin films for high density longitudinal recording
Author :
Singleton, E.W. ; Shan, Z.S. ; Jeong, Y.S. ; Sellmyer, D.J.
Author_Institution :
Behlen Lab. of Phys., Nebraska Univ., Lincoln, NE, USA
fDate :
11/1/1995 12:00:00 AM
Abstract :
For a high density recording media, the magnetic switching volume is of great importance when considering media noise and thermal stability. CoSm/Cr films have been prepared and the influence of the Cr underlayer thickness and of the magnetic layer preparation conditions on the magnetic switching volume have been investigated through magnetic viscosity and remnance curve measurements. The measured switching volumes ranged from 3.0 to 15.2×1018 cm3, and implications regarding noise and thermal stability are discussed
Keywords :
cobalt alloys; coercive force; ferromagnetic materials; magnetic recording noise; magnetic switching; magnetic thin films; remanence; samarium alloys; thermal stability; CoSm-Cr; high density longitudinal recording; magnetic layer preparation conditions; magnetic switching volumes; magnetic viscosity; media noise; remnance curve measurements; thermal stability; Chromium; Magnetic films; Magnetic noise; Magnetic recording; Magnetic switching; Noise measurement; Thermal stability; Thickness measurement; Viscosity; Volume measurement;
Journal_Title :
Magnetics, IEEE Transactions on
