Title :
Contact noise in magnetoresistive read sensors for ultrahigh-density flexible media applications
Author :
Arnold, C. Stephen ; McKinstry, Kevin D. ; Watson, Mark L.
Author_Institution :
Storage Technol. Corp., Louisville, CO, USA
Abstract :
Measurement of the cooling induced noise "contact noise" in magnetoresistive tape recording heads is reported. This form of noise is produced by temperature reduction of the sensor when tape surface irregularities contact the element or shields. Contact noise scales quadratically with element temperature and places constraints on the maximum attainable areal density using anisotropic magnetoresistive tape heads.
Keywords :
giant magnetoresistance; magnetic anisotropy; magnetic heads; magnetic recording noise; magnetoresistive devices; anisotropic magnetoresistive tape heads; contact noise; cooling induced noise; magnetoresistive read sensors; magnetoresistive tape recording heads; maximum attainable areal density; tape surface irregularities; temperature reduction; ultrahigh-density flexible media applications; Anisotropic magnetoresistance; Contacts; Cooling; Magnetic heads; Magnetic sensors; Noise level; Sensor phenomena and characterization; Sensor systems; Servomechanisms; Temperature sensors;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.815459
