Tunneling magnetoresistance of magnetic tunneling junction cell measured by conducting atomic force microscopy with ramping dc bias voltage rate

Min Fong Shu, A. Canizo-Cabrera, Chih Cheng Hsu, C. C. Chen, Jong-Ching Wu, Simon C. Li, Chao Chen Yang, Te Ho Wu

Research output: Contribution to journalArticle

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Abstract

Magnetoresistance (MR) ratio in a magnetic tunneling junction cell with a structure of Si O2 (20 nm) Ta (5 nm) Cu (20 nm) Ta (5 nm) NiFe (2 nm) Cu (5 nm) MnIr (10 nm) CoFe (4 nm) Al-O (1.5 nm) CoFe (4 nm) NiFe (20 nm) Ta (50 nm) was measured by conducting atomic force microscopy to obtain I-V curves. Tunnel magnetoresistance was characterized from these nonlinear I-V curves. MR values of 33.9%, 30.5%, 30.3%, and 28% were obtained when applying magnetic fields of ±150 Oe at various dc bias voltage ramping rates. Several ramping rate values were 0.498, 4.65, 9.3, and 27.9 Hz, respectively.

Original languageEnglish
Article number08R705
JournalJournal of Applied Physics
Volume99
Issue number8
DOIs
Publication statusPublished - 2006 May 25

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atomic force microscopy
conduction
electric potential
curves
cells
tunnels
magnetic fields

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Shu, Min Fong ; Canizo-Cabrera, A. ; Hsu, Chih Cheng ; Chen, C. C. ; Wu, Jong-Ching ; Li, Simon C. ; Yang, Chao Chen ; Wu, Te Ho. / Tunneling magnetoresistance of magnetic tunneling junction cell measured by conducting atomic force microscopy with ramping dc bias voltage rate. In: Journal of Applied Physics. 2006 ; Vol. 99, No. 8.
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Tunneling magnetoresistance of magnetic tunneling junction cell measured by conducting atomic force microscopy with ramping dc bias voltage rate. / Shu, Min Fong; Canizo-Cabrera, A.; Hsu, Chih Cheng; Chen, C. C.; Wu, Jong-Ching; Li, Simon C.; Yang, Chao Chen; Wu, Te Ho.

In: Journal of Applied Physics, Vol. 99, No. 8, 08R705, 25.05.2006.

Research output: Contribution to journalArticle

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AU - Shu, Min Fong

AU - Canizo-Cabrera, A.

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AU - Chen, C. C.

AU - Wu, Jong-Ching

AU - Li, Simon C.

AU - Yang, Chao Chen

AU - Wu, Te Ho

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