TMR of double spin-valve type AF/FM/I/FM/I/FM/AF magnetic tunneling junctions

J. H. Lee, In Woo Chang, S. J. Byun, T. K. Hong, K. Rhie, W. Y. Lee, Kyung Ho Shin, Chanyong Hwang, S. S. Lee, B. C. Lee

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


An unusually large enhancement of TMR at 77 K was observed in double barrier tunnel junctions (DBTJ). This is explained with extended Julliere's model which yields a twice larger TMR value. When the spin coherence length is much smaller at higher temperature, DBTJ is shown to work as a series of two single barrier tunnel junctions.

Original languageEnglish
Pages (from-to)137-139
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Issue number1-3
Publication statusPublished - 2002 Feb

Bibliographical note

Funding Information:
This work was supported by the National Program for Tera-level Nanodevices of the Ministry of Science and Technology and the electron Spin Science Center at POSTECH established by KOSEF.

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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