Title :
Measurement of Bloch line coercivity in uniaxial garnet films
Author :
Theile, J. ; Friedlaender, F.J. ; Engemann, J.
Author_Institution :
Dept. of Electr. Eng., Wuppertal Univ., West Germany
fDate :
9/1/1990 12:00:00 AM
Abstract :
The coercive field of vertical Bloch lines in several uniaxial garnet film samples has been measured by two different methods. With the first method, individual isolated Bloch lines in stripe-domain walls and their response to external magnetic fields are observed directly using a one-sided dark-field illumination technique. The second method detects Block line motion in bubble-domain walls photometrically. By measuring over an array of bubble domains, an average of the scatter of coercivity data is obtained. Experimental results are presented
Keywords :
coercive force; garnets; magnetic domain walls; magnetic thin films; Bloch line coercivity; bubble-domain walls; coercive field; external magnetic fields; one-sided dark-field illumination technique; scatter; stripe-domain walls; uniaxial garnet films; vertical Bloch lines; Coercive force; Electric variables measurement; Garnet films; Hip; Image restoration; Light scattering; Lighting; Magnetic materials; Optical scattering; Photometry;
Journal_Title :
Magnetics, IEEE Transactions on
