Temperature dependence of the exchange bias properties in polycrystalline BiFeO3/Ni80Fe20

J. Richy, T. Hauguel, J. Jay, S. P. Pogossian, B. Warot-Fonrose, C. J. Sheppard, J. L. Snyman, A. M. Strydom, J. Ben Youssef, A. R. Prinsloo, D. Spenato, D. T. Dekadjévi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Multiferroics (MF) based nanostructures combining ferroelectricity (FE) and antiferromagnetism (AF) are attracting a lot of interest in the scientific community. Indeed, a controlled magnetoelectric coupling in a single nanostructure will bring a direct way to control the magnetic state of the MF material. Therefore, MF materials are good candidates for use in nanodevices, like magnetic memories or high frequency devices [1-3]. However, most of MF materials possess a Néel temperature well below 300 K, reducing the number of candidates available for room temperature applications. Still, a good candidate for exchange coupling at room temperature is BiFeO3 (BFO). An interesting use of MF would be in MF/Ferromagnet exchange coupled bilayers as the net magnetization could then be controlled through the coupling by the use of an electric field. Such coupling named exchange bias was discovered by Meiklejohn and Bean [4]. It results in a characteristic horizontal shift of the hysteresis cycle (bias), and can be interpreted as unidirectional anisotropy.

Original languageEnglish
Title of host publication2015 IEEE International Magnetics Conference, INTERMAG 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479973224
DOIs
Publication statusPublished - 14 Jul 2015
Event2015 IEEE International Magnetics Conference, INTERMAG 2015 - Beijing, China
Duration: 11 May 201515 May 2015

Publication series

Name2015 IEEE International Magnetics Conference, INTERMAG 2015

Conference

Conference2015 IEEE International Magnetics Conference, INTERMAG 2015
Country/TerritoryChina
CityBeijing
Period11/05/1515/05/15

ASJC Scopus subject areas

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

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