Title :
A combined experimental and numerical study of temperature rise in GMR sensors due to self-heating
Author :
Ju, Y. Sungtaek ; Xu, Ren ; Wu, Xiao ; Smith, Neil ; Fontana, Robert ; Lee, Wen ; Carey, Kashmira ; Ho, Michael ; Hsiao, David ; Gurney, Bruce
Author_Institution :
IBM Almaden Res. Center, San Jose, CA, USA
fDate :
7/1/2001 12:00:00 AM
Abstract :
Self-heating of GMR sensors is investigated experimentally and numerically. We measure the thermal conductivity of the read gap layers independently and model heat transfer at the air bearing surface using the results of molecular scale simulations. Temperature profiles obtained by simultaneous application of scanning probe and electrical resistance thermometry agree well with numerical simulation results
Keywords :
giant magnetoresistance; magnetic heads; magnetic sensors; magnetoresistive devices; thermal conductivity; GMR sensor; air bearing surface; electrical resistance thermometry; heat transfer; magnetic recording head; molecular scale model; numerical simulation; read gap layer; scanning probe thermometry; self-heating; temperature profile; thermal conductivity; Electric resistance; Giant magnetoresistance; Heat transfer; Magnetic sensors; Probes; Resistance heating; Temperature sensors; Thermal conductivity; Thermal resistance; Thermal sensors;
Journal_Title :
Magnetics, IEEE Transactions on
