Title :
Polarized Mossbauer study of particle orientation in magnetic recording tapes
Author :
Yang, Xie-Long ; Jiang, Ke-Yu ; Wu, Zhen ; Sun, Xiao-Duo
Author_Institution :
Dept. of Phys., East China Normal Univ., Shanghai, China
fDate :
1/1/1989 12:00:00 AM
Abstract :
Unpolarized Mossbauer study of particle orientation in magnetic recording tapes requires the measurements of the tape samples from different directions. This requirement may introduce appreciable saturation effects, and may, in some cases, lead to destruction of the tapes´ original magnetization orientation. The authors present a more effective technique which uses polarized recoil-free γ-rays to identify the particle orientations. Two examples of the application of the technique to γ-Fe2O3 tapes with different particle orientations are discussed, with results conforming to those of magnetic measurements
Keywords :
Mossbauer effect; ferrimagnetic properties of substances; magnetic recording; magnetic tapes; polarisation; γ-phase; Fe2O3; magnetic recording tapes; particle orientation; polarised Mossbauer study; polarized recoil-free γ-rays; saturation effects; Absorption; Iron; Magnetic field measurement; Magnetic materials; Magnetic recording; Magnetic variables measurement; Particle measurements; Polarization; Saturation magnetization; Sun;
Journal_Title :
Magnetics, IEEE Transactions on
