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The Influence of Thermal Annealing on Magnetostatic Properties of thin Ni Films
E.E. Shalyguina,Chong-Oh Kim,Cheol Gi Kim,JungHwa Seo 한국자기학회 2003 Journal of Magnetics Vol.8 No.4
The magnetostatic properties of the as-deposited and annealed at T = 300 and 400 ℃ Ni films were investigated employing both magneto-optical magnetometer and VSM. The Ni films of 50~200 ㎚ thicknesses were prepared by DC magnetron sputtering technique. The strong influence of annealing temperature on magnetostatic properties of the studied samples was discovered. For the annealed Ni films, the increase of the coercivity H_C (up to 4 times) in comparison with that of as-deposited samples
Theoretical Interpretation of Positive Magnetoresistance in Permalloy Film
Gisuk Sung,Elena E. Shalyguina,Kyung-Ho Shin 한국자기학회 1999 Journal of Magnetics Vol.4 No.1
Recently we reported the evolutionary transition from the positive magnetoresistance to the negative was discovered in the transverse configuration as the thickness of permalloy film increases. The discovered peculiarities of positive magnetoresistance phenomena were explained in the framework of the uniform rotation model of the film magnetization reversal.
Magnetization Distribution in Thin - Film Magnetic Head
Kyung-Ho Shin,E. E. Shalyguina,J. H. Lee,K. Rhie 한국자기학회 2000 Journal of Magnetics Vol.5 No.2
Local magnetic properties and magnetization distributions on the air-bearing surface of a thin-film magnetic head have been studied by using scanning magneto-optical Kerr microscopy. The examined head was a merged MR read/inductive writing head with a write gap equal to 0.3 ㎛. Sizes of top and bottom pole-tips on the air-bearing surface of the writing head were equal to 3 ㎛ × 3 ㎛ and 3 ㎛ × 30 ㎛, respectively. The measured magnetic characteristics on the head air-bearing surface were found to be very sensitive to the head design. In particular, magnetization distributions were discovered to have asymmetrical shape. Maximum magnitudes of the magnetization were located near the shorten pole-tip. So, it was experimentally proved that more magnetic flux emanates just from this part of the air-bearing head surface.