Distortions of the statistical distribution of Barkhausen noise measured by magneto-optical Kerr effect

Journal of Magnetism and Magnetic Materials

Volumn 320, Issue 9, 2008, Pages 1651-1656

  Pinotti, E ^a   Brenna, M ^a   Puppin, E ^a  

^a POLITECNICO DI MILANO   (Italy)

Author keywords

Barkhausen noise; Magneto optical Kerr effect; Noise statistics

Indexed keywords

GAUSSIAN BEAMS; LASER BEAMS; MAGNETIZATION; MAGNETOOPTICAL EFFECTS; STATISTICS;

BARKHAUSEN NOISE; NOISE STATISTICS; STATISTICAL DISTRIBUTION;

SPURIOUS SIGNAL NOISE;

EID: 40249114713     PISSN: 03048853     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jmmm.2008.01.031     Document Type: Article

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14. 2.
15. The laser noise can be greatly reduced by employing a good-quality amplitude-stabilized laser, and allowing it to stabilize for several hours before the measurements.
16. For an easier calculation, the error function in Eq. (15) can be fairly good approximated with the hyperbolic tangent having the same argument. The maximum relative error is about 10%.