Asymmetric Magnetization Reversal in the Exchange-Biased MnO/(Ga,Mn)As Heterostructure Studied by Ferromagnetic Resonance

• Authors: K. Dziatkowski , Z. Ge , X. Liu , J. Furdyna , A. Twardowski
• Languages of publication: EN

Abstracts

EN

We report ferromagnetic resonance study of the magnetization reversal in the exchange-coupled MnO/(Ga,Mn)As system. The low-field parts of ferromagnetic resonance spectra measured along [1/10] and [100] directions of (Ga,Mn)As were combined into hysteresis loops, which under field-cooling conditions similarly to SQUID loops are shifted toward negative magnetic fields. The magnetization reversal process revealed by the loops occurred remarkably asymmetric for both sample configurations.

Keywords

EN

75.50.Pp; 76.50.+g; 75.30.Gw; 75.70.Cn

Discipline

• 75.30.Gw: Magnetic anisotropy
• 75.70.Cn: Magnetic properties of interfaces (multilayers, superlattices, heterostructures)
• 76.50.+g: Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance(see also 75.30.Ds Spin waves)
• 75.50.Pp: Magnetic semiconductors

• Journal: Acta Physica Polonica A
• Year: 2006
• Volume: 110
• Issue: 3
• Pages: 319-324

Dates

published

2006-09

received

2006-06-17

Contributors

author

K. Dziatkowski

• Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland
• Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA

author

Z. Ge

• Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA

author

X. Liu

• Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA

author

J. Furdyna

• Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA

author

A. Twardowski

• Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland

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Identifiers

DOI

10.12693/APhysPolA.110.319