TY - JOUR
T1 - Effect of grain size on intergranular magnetostatic coupling in thin-film media
AU - Mitsuya, Haruhito
AU - Endo, Atsushi
AU - Kikuchi, Akira
AU - Nakai, Junichi
AU - Shoji, Hiroki
AU - Takahashi, Migaku
PY - 1997/4/15
Y1 - 1997/4/15
N2 - In order to characterize the intergranular coupling and to clarify the effect of grain size on intergranular magnetostatic coupling in thin-film media, the temperature dependences of magnetic properties Hc, Hkgrain, and Ms, for ultraclean-(UC)-processed CoCrTa media with various grain sizes have been examined in order to discuss the effect of grain size on intergranular magnetostatic coupling. The results are that (1) in the UC-processed media, the magnetostatic coupling mode is found to be dominant as the intergranular coupling and in the normal processed media, the exchange coupling mode is dominant, and (2) the decrease in 4πMs/Hkgrain below 1.0 is the most effective to suppress the increment in the magnetostatic coupling due to the reduction in the grain size, were clarified.
AB - In order to characterize the intergranular coupling and to clarify the effect of grain size on intergranular magnetostatic coupling in thin-film media, the temperature dependences of magnetic properties Hc, Hkgrain, and Ms, for ultraclean-(UC)-processed CoCrTa media with various grain sizes have been examined in order to discuss the effect of grain size on intergranular magnetostatic coupling. The results are that (1) in the UC-processed media, the magnetostatic coupling mode is found to be dominant as the intergranular coupling and in the normal processed media, the exchange coupling mode is dominant, and (2) the decrease in 4πMs/Hkgrain below 1.0 is the most effective to suppress the increment in the magnetostatic coupling due to the reduction in the grain size, were clarified.
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U2 - 10.1063/1.364746
DO - 10.1063/1.364746
M3 - Article
AN - SCOPUS:6144234950
VL - 81
SP - 4680
EP - 4682
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 8 PART 2A
ER -