Bistability of (Ga,Mn)As Ferromagnetic Nanostructures Due to the Domain Walls Switching

• Authors: T. Andrearczyk , T. Wosiński , A. Mąkosa , T. Figielski , J. Wróbel , J. Sadowski
• Languages of publication: EN

Abstracts

EN

We designed and investigated four-arm nanostructures, composed of two perpendicularly crossed stripes, fabricated from ferromagnetic (Ga,Mn)As layer by means of electron-beam lithography patterning and chemical etching. The nanostructures exhibit a bistable resistance behavior resulting from two configurations of magnetic domain walls in the central part of the structures. We demonstrate a possibility of switching between two stable resistance states in zero magnetic field by applying a pulse of either weak magnetic field or electric current through the structure.

Keywords

EN

73.50.Jt; 75.50.Pp; 75.30.Gw; 75.60.Ch; 85.75.-d

Discipline

• 75.30.Gw: Magnetic anisotropy
• 75.60.Ch: Domain walls and domain structure(for magnetic bubbles and vortices, see 75.70.Kw)
• 73.50.Jt: Galvanomagnetic and other magnetotransport effects (including thermomagnetic effects)
• 75.50.Pp: Magnetic semiconductors
• 85.75.-d: Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 116
• Issue: 5
• Pages: 901-903

Dates

published

2009-11

Contributors

author

T. Andrearczyk

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

T. Wosiński

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

A. Mąkosa

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

T. Figielski

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

J. Wróbel

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

J. Sadowski

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
• MAX-Lab, Lund University, 22100 Lund, Sweden

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Identifiers

DOI

10.12693/APhysPolA.116.901