Presentation 2013-03-08
Thermally assisted switching on magnetic tunnel junctions with perpendicular magnetized TbFe memory layer
Yuki Fujisawa, Daiki Yoshikawa, Takeshi Kato, Satoshi Iwata, Shigeru Tsunashima,
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Abstract(in English) Perpendicular magnetized [Co/Pd]/MgO / TbFe tunnel junctions whose memory layer, TbFe, exhibits large perpendicular anisotropy and low Curie temperature were fabricated, and their magneto resistance (MR)properties and thermally assisted magnetization switching utilizing Joule heat generated by a current pulse through the junction were confirmed. The [Co/Pd]/MgO / TbFe junction with a barrier thickness of 1.4 nm exhibited an areal resistance of 342 Ωum^2 and an MR ratio of 9 %at a low bias voltage of 40 mV. The coercivity of TbFe memory layer was more than 1 .5 kOe at room temperature, however the magnetization of the TbFe switched at an external field of 100 Oe when the current pulse with a pulse width 1 00 msec was applied through the junction, which results from Joule heat generated by the current pulse.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Thermally assisted switching / MTJ / RE-TM / TbFe
Paper # MR2012-50
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Conference Information
Committee MR
Conference Date 2013/3/1(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) Thermally assisted switching on magnetic tunnel junctions with perpendicular magnetized TbFe memory layer
Sub Title (in English)
Keyword(1) Thermally assisted switching
Keyword(2) MTJ
Keyword(3) RE-TM
Keyword(4) TbFe
1st Author's Name Yuki Fujisawa
1st Author's Affiliation Graduated School of Engineering, Nagoya University()
2nd Author's Name Daiki Yoshikawa
2nd Author's Affiliation Graduated School of Engineering, Nagoya University
3rd Author's Name Takeshi Kato
3rd Author's Affiliation Graduated School of Engineering, Nagoya University
4th Author's Name Satoshi Iwata
4th Author's Affiliation Graduated School of Engineering, Nagoya University
5th Author's Name Shigeru Tsunashima
5th Author's Affiliation Department of Research, Nagoya Industrial Science Research Institute
Date 2013-03-08
Paper # MR2012-50
Volume (vol) vol.112
Number (no) 452
Page pp.pp.-
#Pages 5
Date of Issue