Topographical, Magnetic and Optical Studies of (II,Mn)VI Quantum Structures Grown on (Ga,Mn)As

• Authors: R. Butkutė , M. Aleszkiewicz , E. Janik , G. Cywiński , P. Wojnar , L. Däweritz , J. Primus , J. De Boeck , J. Kossut
• Languages of publication: EN

Abstracts

EN

We report on an overgrowth of quantum structures consisting of diluted magnetic semiconductor CdMnTe quantum wells with non-magnetic barriers made of CdMgTe or ZnTe on ferromagnetic MnAs and GaMnAs films by molecular beam epitaxy. Atomic force microscopy images of the quantum structures grown on MnAs demonstrated the existence of two types of regions on the surface: protruded islands with micrometric sizes, surrounded by areas of small-scale roughness. Magnetic force microscopy study of these samples revealed a magnetic domain structure only on the above mentioned islands. The (II,Mn)VI quantum wells grown on GaMnAs films exhibited relatively smooth surface, but no magnetic force microscopy signal was measurable either before or after magnetizing the sample. In the luminescence spectra of all our quantum structures the emission attributed to CdMnTe quantum wells was observed. The influence of magnetization on the luminescence line position was investigated.

Keywords

EN

81.15.Hi; 07.79.Pk; 78.55.-m

Discipline

• 81.15.Hi: Molecular, atomic, ion, and chemical beam epitaxy
• 07.79.Pk: Magnetic force microscopes
• 78.55.-m: Photoluminescence, properties and materials(for time resolved luminescence, see 78.47.jd)

• Journal: Acta Physica Polonica A
• Year: 2003
• Volume: 103
• Issue: 6
• Pages: 649-657

Dates

published

2003-06

received

2003-05-30

Contributors

author

R. Butkutė

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

author

M. Aleszkiewicz

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

author

E. Janik

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

author

G. Cywiński

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

author

P. Wojnar

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

author

L. Däweritz

• Paul Drude Institut für Festkörperelektronik, Berlin, Germany

author

J. Primus

• IMEC, Interuniversity Microelectronics Center (IMEC), Leuven, Belgium

author

J. De Boeck

• IMEC, Interuniversity Microelectronics Center (IMEC), Leuven, Belgium

author

J. Kossut

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

References

• 1. F. Matsukura, H. Ohno, T. Dietl, in: Handbook of Magnetic Materials, Ed. K.H.J. Buschow, Vol. 14, North-Holland, Amsterdam 2002, p. 1
• 2. M. Ghali, J. Kossut, E. Janik, K. Regiński, Ł. Kłopotowski, Solid State Commun., 119, 371, 2001
• 3. A. Kudelski, K. Fronc, J. Wróbel, S. Maćkowski, G.Cywiński, M. Aleszkiewicz, F. Kyrychenko, T. Wojtowicz, J. Kossut, Solid State Commun., 120, 35, 2001
• 4. L. Däweritz, F. Schippan, A. Trampert, M. Kästner, G. Behme, Z.M. Wang, M. Moreno, P. Schützendübe, K.H. Ploog, J. Crystal Growth, 227-228, 843, 2001
• 5. J. De Boeck, R. Oesterholt, A. Van Esch, H. Bender, C. Bruynseraede, C. Van Hoof, G. Borghs, Appl. Phys. Lett., 68, 2744, 1996

Identifiers

DOI

10.12693/APhysPolA.103.649