Magnetization reversal in exchange-coupled FeTaN/FeSm/FeTaN multilayers

P. Vavassori, G. Gubbiotti, G. Carlotti, M. Madami, A. Di Cristoforo, P. Mengucci, J. Weston, G. Zangari

Research output: Contribution to journalArticle

Abstract

The magnetization reversal process in exchange-spring FeTaN/FeSm/FeTaN multilayers, implementing an alternating soft (FeTaN) and hard (FeSm) magnetic structure, is investigated using magneto-optical Kerr effect vector-magnetometry to measure in plane hysteresis loops both parallel (longitudinal) and perpendicular (transverse) to the applied field. The vector-magnetometry analysis shows that, for soft layer thickness above 3.2 nm, the magnetization reversal occurs via the formation of a stable exchange-spring state in which the magnetic moments of the first soft layer gradually rotate away from the unswitched underlying hard layer. The recording of minor loops shows that the magnetization rotation leading to the exchange-spring state is fully reversible.

Original languageEnglish (US)
JournalJournal of Magnetism and Magnetic Materials
Volume272-276
Issue numberSUPPL. 1
DOIs
StatePublished - May 1 2004

Fingerprint

Magnetization reversal
Multilayers
Optical Kerr effect
magnetization
magnetic measurement
Magnetic structure
Hysteresis loops
Magnetic moments
Magnetization
Kerr effects
magnetic moments
recording
hysteresis
Magnetometry

Keywords

  • Exchange coupling
  • Magneto-optic Kerr effect
  • Spring magnet
  • Vector-magnetometry

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Vavassori, P., Gubbiotti, G., Carlotti, G., Madami, M., Di Cristoforo, A., Mengucci, P., ... Zangari, G. (2004). Magnetization reversal in exchange-coupled FeTaN/FeSm/FeTaN multilayers. Journal of Magnetism and Magnetic Materials, 272-276(SUPPL. 1). https://doi.org/10.1016/j.jmmm.2003.12.258

Magnetization reversal in exchange-coupled FeTaN/FeSm/FeTaN multilayers. / Vavassori, P.; Gubbiotti, G.; Carlotti, G.; Madami, M.; Di Cristoforo, A.; Mengucci, P.; Weston, J.; Zangari, G.

In: Journal of Magnetism and Magnetic Materials, Vol. 272-276, No. SUPPL. 1, 01.05.2004.

Research output: Contribution to journalArticle

Vavassori, P, Gubbiotti, G, Carlotti, G, Madami, M, Di Cristoforo, A, Mengucci, P, Weston, J & Zangari, G 2004, 'Magnetization reversal in exchange-coupled FeTaN/FeSm/FeTaN multilayers', Journal of Magnetism and Magnetic Materials, vol. 272-276, no. SUPPL. 1. https://doi.org/10.1016/j.jmmm.2003.12.258
Vavassori P, Gubbiotti G, Carlotti G, Madami M, Di Cristoforo A, Mengucci P et al. Magnetization reversal in exchange-coupled FeTaN/FeSm/FeTaN multilayers. Journal of Magnetism and Magnetic Materials. 2004 May 1;272-276(SUPPL. 1). https://doi.org/10.1016/j.jmmm.2003.12.258
Vavassori, P. ; Gubbiotti, G. ; Carlotti, G. ; Madami, M. ; Di Cristoforo, A. ; Mengucci, P. ; Weston, J. ; Zangari, G. / Magnetization reversal in exchange-coupled FeTaN/FeSm/FeTaN multilayers. In: Journal of Magnetism and Magnetic Materials. 2004 ; Vol. 272-276, No. SUPPL. 1.
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AU - Di Cristoforo, A.

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AU - Weston, J.

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