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Nonuniform thermal magnetization noise in thin films: Application to GMR heads.
- Source :
-
Journal of Applied Physics . 5/15/2002 Part 1, 2 & 3, Vol. 91 Issue 10, p7279. 3p. 1 Diagram, 1 Graph. - Publication Year :
- 2002
-
Abstract
- A general scheme is developed to analyze the effect of nonuniform thermal magnetization fluctuations in a thin film. The normal mode formalism is utilized to calculate random magnetization fluctuations. The magnetization noise is proportional to the temperature and inversely proportional to the film volume. The total noise power is the sum of normal mode spectral noises and mainly determined by spin-wave standing modes with an odd number of oscillations. The effect rapidly decreases with increasing mode number. An exact analytical calculation is presented for a two-cell model. [ABSTRACT FROM AUTHOR]
- Subjects :
- *THIN films
*MAGNETIZATION
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 91
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 6667035
- Full Text :
- https://doi.org/10.1063/1.1452677