Presentation 2009-11-13
Effect of Current Screen Layer on Bias Voltage Dependence of MR Ratio in Heusler Alloy Based CPP-GMR Sensor
Yo SATO, Katsumi HOSHINO, Susumu OKAMURA, Keizo KATO, Hiroyuki HOSHIYA,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The effect of current screen layer on the bias voltage dependence of a magnetoresistive (MR) ratio was studied for a Heusler alloy-based current perpendicular-to-plane giant-magnetoresistive (CPP-GMR) sensor. The MR ratio was improved by using the current screen layer for the Heusler alloy based CPP-GMR sensor. In addition, the bias voltage dependence of the MR ratio was also improved. This improvement in bias voltage dependence appears to be due to the suppression of the magnetic moments fluctuation near a pinhole which reduces the spin-torque effect.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) CPP-GMR / confined current path / magnetic read head / magnetic read sensor / spin torque
Paper # MR2009-34
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Committee MR
Conference Date 2009/11/6(1days)
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Registration To Magnetic Recording (MR)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Effect of Current Screen Layer on Bias Voltage Dependence of MR Ratio in Heusler Alloy Based CPP-GMR Sensor
Sub Title (in English)
Keyword(1) CPP-GMR
Keyword(2) confined current path
Keyword(3) magnetic read head
Keyword(4) magnetic read sensor
Keyword(5) spin torque
1st Author's Name Yo SATO
1st Author's Affiliation Central Research Laboratory, Hitachi, Ltd.()
2nd Author's Name Katsumi HOSHINO
2nd Author's Affiliation Central Research Laboratory, Hitachi, Ltd.
3rd Author's Name Susumu OKAMURA
3rd Author's Affiliation Central Research Laboratory, Hitachi, Ltd.
4th Author's Name Keizo KATO
4th Author's Affiliation Central Research Laboratory, Hitachi, Ltd.
5th Author's Name Hiroyuki HOSHIYA
5th Author's Affiliation Central Research Laboratory, Hitachi, Ltd.
Date 2009-11-13
Paper # MR2009-34
Volume (vol) vol.109
Number (no) 282
Page pp.pp.-
#Pages 4
Date of Issue