Magnetotransport in Ferromagnetic (Ga,Mn)N Epitaxial Films

M.H. Ham; Min Chang Jeong; W.Y. Lee; Jae Min Myoung; J.M. Lee; J.Y. Chang; S.H. Han

doi:10.4028/www.scientific.net/MSF.449-452.1041

Paper Titles

XPS Analysis and Atomic Force Microscopy Observation of Micro-Liquids Adsorbed on Pure Iron and Copper Surfaces
p.1025

Microstructures and Magnetic Property of Bulk and Thin Film Co2MnGe Heusler Compound
p.1029

Fabrication of SiO₂-Coated Magnetic Nanoparticles for Applications to Protein Separation and Purification
p.1033

Shock Consolidation of Sm-Fe-N Magnetic Powders and Magnetic Properties
p.1037

Magnetotransport in Ferromagnetic (Ga,Mn)N Epitaxial Films
p.1041

Synthesis and Crystal Structure of Hexagonal DyMnO₃
p.1045

Influence of Annealing Temperature on Magnetic Properties in Co-Based Amorphous Ribbons
p.1049

Structure Dependent Oxidation of Al Thin Films for MTJ Tunnel Barrier
p.1053

Properties of Nd-Fe-B Magnetic Powder Prepared by Reduction-Diffusion Process Using a Spray-Dried Precursor
p.1057

HomeMaterials Science ForumMaterials Science Forum Vols. 449-452Magnetotransport in Ferromagnetic (Ga,Mn)N...

Magnetotransport in Ferromagnetic (Ga,Mn)N Epitaxial Films

Abstract:

We present the ferromagnetism and magnetotransport properties in the (Ga,Mn)N epitaxial films with very low Mn concentrations grown by plasma-enhanced molecular beam epitaxy (PEMBE). The (Ga,Mn)N epitaxial films were found to exhibit ferromagnetic ordering with Curie temperature of 700 K. All the films exhibit n-type characteristics. The negative magnetoresistance was observed below 150 K, and found to gradually increase with decreasing temperature. The ferromagnetism in the (Ga,Mn)N is due to the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between the localized Mn moments mediated by the electron gas.

You might also be interested in these eBooks

Designing, Processing and Properties of Advanced Engineering Materials

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 449-452)

Pages:

1041-1044

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.449-452.1041

Citation:

Cite this paper

Online since:

March 2004

Authors:

M.H. Ham, Min Chang Jeong, W.Y. Lee, Jae Min Myoung, J.M. Lee, J.Y. Chang, S.H. Han

Keywords:

(Ga,Mn)N, Ferromagnetism, Magnetoresistivity MR, PEMBE

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] H. Ohno, Science Vol. 281 (1998), p.951.

Google Scholar

[2] K. W. Edmonds, K. Y. Wang, R. P. Campion, A. C. Neumann, N. R. S. Farley, B. L. Gallagher, and C. T. Foxon, Appl. Phys. Lett. Vol. 81 (2002), p.4991.

Google Scholar

[3] T. Dietl, H. Ohno, F. Matsukura, J. Cibert, and D. Ferrand, Science Vol. 287 (2000), p.1019.

Google Scholar

[4] S. Nakamura and G. Fasol: The Blue Laser Diode – GaN Based Light Emitters and Lasers (Springer – Verlag, Berlin 1997).

Google Scholar

[5] Y. D. Park, A. T. Hanbicki, S. C. Erwin, C. S. Hellberg, J. M. Sullivan, J. E. Mattson, T. F. Ambrose, A. Wilson, G. Spanos, and B. T. Jonker, Science Vol. 295 (2002), p.651.

DOI: 10.1126/science.1066348

Google Scholar

[6] J. Y. Chang, G. H. Kim, J. M. Lee, S. H. Han, H. J. Kim, W. Y. Lee, M. H. Ham, K. S. Huh, and J. M. Myoung, J. Appl. Phys. Vol. 93 (2003), 7858.

Google Scholar

[7] H. Ohno, A. Shen, F. Matsukura, A. Oiwa, A. Endo, S. Katsumoto, and Y. Iye, Appl. Phys. Lett. Vol. 69 (1996), p.363.

DOI: 10.1063/1.118061

Google Scholar

[8] J. M. Lee, J. K. Jung, and S. H. Lim, J. Magn. Magn. Mater. Vol. 234 (2001), p.133.

Google Scholar

[9] R. Y. Korotkov, J. M. Gregie, and B. W. Wessels, Appl. Phys. Lett. Vol. 80 (2002), p.1731.

Google Scholar

[10] R. N. Bhatt, M. Berciu, M. P. Kennett, and Xin Wan, J. Superconductivity Vol. 15 (2002), p.71.

Google Scholar

[11] Y. Iye, A. Oiwa, A. Endo, S. Katsumoto, F. Matsukura, A. Shen, H. Ohno, and H. Munekata, Mater. Sci. and Eng. B Vol. 63 (1999), p.88.

DOI: 10.1016/s0921-5107(99)00057-4

Google Scholar