Freestanding single-crystalline magnetic structures fabricated by ion bombardment

Freestanding single-crystalline magnetic structures fabricated by ion bombardment

Starting from an ultrathin Fe film grown epitaxially on top of a GaAs(001) substrate, we show that freestanding structures can be created by ion-beam treatment. These structures are single-crystalline blisters and only a few nanometers thick. Anisotropic stress in the rim of a blister induces magnet...

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Veröffentlicht in:Applied physics letters 2015-01, Vol.106 (3)
Hauptverfasser: Schoenherr, P., Bischof, A., Boehm, B., Eib, P., Grimm, S., Alvarado, S. F., Gross, L., Allenspach, R.
Format: Artikel
Sprache:eng
Schlagworte:
Applied physics
Blistering
Blisters
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Crystal structure
Crystallinity
Epitaxial growth
EPITAXY
GALLIUM ARSENIDES
Ion bombardment
ION IMPLANTATION
IRON
Magnetic domains
MONOCRYSTALS
NANOSTRUCTURES
Single crystals
STRESSES
SUBSTRATES
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Zusammenfassung:Starting from an ultrathin Fe film grown epitaxially on top of a GaAs(001) substrate, we show that freestanding structures can be created by ion-beam treatment. These structures are single-crystalline blisters and only a few nanometers thick. Anisotropic stress in the rim of a blister induces magnetic domain states magnetized in the direction normal to the blister edge. Experimental evidence is provided that the lateral size can be confined by starting from a nanostructured template.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4906428