Orthogonal Susceptibility of Permalloy Films
- 1 September 1970
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 41 (10) , 4076-4082
- https://doi.org/10.1063/1.1658414
Abstract
The switching response of uniaxial 1000‐Å nonmagnetostrictive permalloy films in the orthogonal‐drive‐field mode has been studied. The orthogonal susceptibility is defined as the ratio of the change in the easy‐axis (longitudinal) magnetization to the change in easy‐axis field. The susceptibility is derived for two cases: first, with only angular dispersion, and second, with both angular and magnitude dispersion. These derivations show that the orthogonal susceptibility is primarily determined by the angular dispersion for well‐oriented films. Experimental results are given which confirm these derivations. This analysis was stimulated by the need for a better quantitative analysis of the films used in low‐field (∼10−5 Oe) magnetometers.This publication has 4 references indexed in Scilit:
- A Description of Magnetic Switching in Disperse Anisotropy FilmsJournal of Applied Physics, 1964
- Longitudinal Permeability in Thin Permalloy FilmsJournal of Applied Physics, 1963
- Angular and Magnitude Dispersion of the Anisotropy in Magnetic FilmsJournal of Applied Physics, 1963
- A mechanism of magnetic hysteresis in heterogeneous alloysPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1948