Piezoelectrically enhanced exchange bias in multiferroic heterostructures

Piezoelectrically enhanced exchange bias in multiferroic heterostructures

We propose a multiferroic tri-layer structure in which two magnetic layers are epitaxially constrained on a bottom piezoelectric substrate. In this structure, the exchange bias is observed due to interface spin coupling between the two magnetic layers. We also show that the exchange bias is signific...

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Veröffentlicht in:Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2014-01, Vol.2 (38), p.8018-8022
Hauptverfasser: Kim, Tae Y., Song, Seungwoo, Jang, Hyun M., Peters, John A., Jeong, Young K.
Format: Artikel
Sprache:eng
Schlagworte:
Bias
Constraints
Electronic devices
Epitaxy
Exchange
Modulation
Piezoelectricity
Spin coupling
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Zusammenfassung:We propose a multiferroic tri-layer structure in which two magnetic layers are epitaxially constrained on a bottom piezoelectric substrate. In this structure, the exchange bias is observed due to interface spin coupling between the two magnetic layers. We also show that the exchange bias is significantly modulated by the application of an external electric field at room temperature, and the modulation in exchange bias is reproducible and reversible.
ISSN:2050-7526
2050-7534
DOI:10.1039/C4TC01337A