Magneto-Transport Characterization of Four-Arm Nanostructure Based on Ferromagnetic (Ga,Mn)As

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

Abstracts

EN

We report on results of magneto-transport measurements performed on four-arm nanostructure fabricated from p-type ferromagnetic Ga_{0.92}Mn_{0.08}As layer. The results reveal hysteresis-like behaviors of low field magnetoresistance. We interpret the magnetoresistance in terms of domain walls, which are expected to be trapped inside the nanostructure at some particular positions and which contribute to the total resistance.

Keywords

EN

73.50.Jt; 75.50.Pp; 75.30.Gw; 75.60.Ch

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

• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 114
• Issue: 5
• Pages: 1049-1054

Dates

published

2008-11

received

2008-06-07

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

T. Figielski

• 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

Z. Tkaczyk

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

author

E. Łusakowska

• 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

References

• 1. H.X. Tang, R.K. Kawakami, D.D. Awschalom, M.L. Roukes, Phys. Rev. Lett. 90, 107201 (2003)
• 2. M. Sawicki, J. Magn. Magn. Mater. 300, 1 (2006)
• 3. S. Hűmpfner, K. Pappert, J. Wenisch, K. Brunner, C. Gould, G. Schmidt, L.W. Molenkamp, M. Sawicki, T. Dietl, Appl. Phys. Lett. 90, 102102 (2007)
• 4. T. Yoo, D. Shin, J. Kim, H. Kim, S. Lee, X. Liu, J.K. Furdyna, J. Appl. Phys. 103, 07D119 (2008)
• 5. T. Figielski, T. Wosiński, A. Morawski, A. Mąkosa, J. Wróbel, J. Sadowski, Appl. Phys. Lett. 90, 052108 (2007)
• 6. M. Adell, L. Ilver, J. Kanski, V. Stanciu, P. Svedlindh, J. Sadowski, J.Z. Domagała, F. Terki, C. Hernandez, S. Charar, Appl. Phys. Lett. 86, 112501 (2005)

Identifiers

DOI

10.12693/APhysPolA.114.1049