Detection of DC voltages in multi-layered magnetic thin films undergoing ferromagnetic resonance

E. R. Park, D. K. Oh, Cheol Eui Lee, S. H. Kim, Seong Rae Lee, Young-geun Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In 1996, Berger (Phys. Rev. B vol. 54, p. 9354, 1996) predicted that a DC current crossing an interface between the normal and ferromagnetic layer would induce a precession of the magnetization in the ferromagnetic layer. Slonczewski (J. Magn. Magn. Mater. vol. 159, p. L1, 1996) has proposed a similar current-induced spin precession, as well as a switching of the magnetization between two different static directions. Tsoi et al. (Phys. Rev. Lett. vol. 80, p. 4281, 1998) have also obtained experimental evidence of such spin precession, in a Cu/Co multilayer traversed by a current normal to layers at 4 K. Recently, the inverse effect has been theoretically predicted by Berger and Slonczewski independently (L. Berger, Phys. Rev. B vol. 59, p. 11465, 1999). When an external microwave is absorbed under a ferromagnetic resonance (FMR) condition, precession of the magnetization will generate a DC voltage across the normal/ferromagnetic multilayer. In this work, we report the experimental results supporting such DC voltage generation.

Original languageEnglish
Title of host publicationINTERMAG Europe 2002 - IEEE International Magnetics Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)0780373650, 9780780373655
DOIs
Publication statusPublished - 2002
Event2002 IEEE International Magnetics Conference, INTERMAG Europe 2002 - Amsterdam, Netherlands
Duration: 2002 Apr 282002 May 2

Other

Other2002 IEEE International Magnetics Conference, INTERMAG Europe 2002
CountryNetherlands
CityAmsterdam
Period02/4/2802/5/2

Fingerprint

Magnetic thin films
Ferromagnetic resonance
Magnetization
Multilayers
Electric potential
Induced currents
Microwaves

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Surfaces, Coatings and Films

Cite this

Park, E. R., Oh, D. K., Lee, C. E., Kim, S. H., Lee, S. R., & Kim, Y. (2002). Detection of DC voltages in multi-layered magnetic thin films undergoing ferromagnetic resonance. In INTERMAG Europe 2002 - IEEE International Magnetics Conference [1000761] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/INTMAG.2002.1000761

Detection of DC voltages in multi-layered magnetic thin films undergoing ferromagnetic resonance. / Park, E. R.; Oh, D. K.; Lee, Cheol Eui; Kim, S. H.; Lee, Seong Rae; Kim, Young-geun.

INTERMAG Europe 2002 - IEEE International Magnetics Conference. Institute of Electrical and Electronics Engineers Inc., 2002. 1000761.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Park, ER, Oh, DK, Lee, CE, Kim, SH, Lee, SR & Kim, Y 2002, Detection of DC voltages in multi-layered magnetic thin films undergoing ferromagnetic resonance. in INTERMAG Europe 2002 - IEEE International Magnetics Conference., 1000761, Institute of Electrical and Electronics Engineers Inc., 2002 IEEE International Magnetics Conference, INTERMAG Europe 2002, Amsterdam, Netherlands, 02/4/28. https://doi.org/10.1109/INTMAG.2002.1000761
Park ER, Oh DK, Lee CE, Kim SH, Lee SR, Kim Y. Detection of DC voltages in multi-layered magnetic thin films undergoing ferromagnetic resonance. In INTERMAG Europe 2002 - IEEE International Magnetics Conference. Institute of Electrical and Electronics Engineers Inc. 2002. 1000761 https://doi.org/10.1109/INTMAG.2002.1000761
Park, E. R. ; Oh, D. K. ; Lee, Cheol Eui ; Kim, S. H. ; Lee, Seong Rae ; Kim, Young-geun. / Detection of DC voltages in multi-layered magnetic thin films undergoing ferromagnetic resonance. INTERMAG Europe 2002 - IEEE International Magnetics Conference. Institute of Electrical and Electronics Engineers Inc., 2002.
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AB - In 1996, Berger (Phys. Rev. B vol. 54, p. 9354, 1996) predicted that a DC current crossing an interface between the normal and ferromagnetic layer would induce a precession of the magnetization in the ferromagnetic layer. Slonczewski (J. Magn. Magn. Mater. vol. 159, p. L1, 1996) has proposed a similar current-induced spin precession, as well as a switching of the magnetization between two different static directions. Tsoi et al. (Phys. Rev. Lett. vol. 80, p. 4281, 1998) have also obtained experimental evidence of such spin precession, in a Cu/Co multilayer traversed by a current normal to layers at 4 K. Recently, the inverse effect has been theoretically predicted by Berger and Slonczewski independently (L. Berger, Phys. Rev. B vol. 59, p. 11465, 1999). When an external microwave is absorbed under a ferromagnetic resonance (FMR) condition, precession of the magnetization will generate a DC voltage across the normal/ferromagnetic multilayer. In this work, we report the experimental results supporting such DC voltage generation.

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