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

Volume

37

Issue

4

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

1701

Lastpage

1703

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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.950942

Filename

950942