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Studies of Ni and Co Doped Amorphous AlN for Magneto-optical Applications

Published online by Cambridge University Press:  31 January 2011

Wojciech M. Jadwisienczak ,
Hiroki Tanaka ,
Marty E. Kordesch ,
Aurangzeb Khan ,
Savas Kaya  and
Venkat Vuppuluri
Wojciech M. Jadwisienczak
Affiliation:
[email protected], Ohio University, School of EECS, Stocker Center 363, Athens, Ohio, 45701, United States, 740-593-2067, 740-593-0007
Hiroki Tanaka
Affiliation:
[email protected], Ohio University, School of EECS, Athens, Ohio, United States
Marty E. Kordesch
Affiliation:
[email protected], Ohio University, Department of Physics and Astronomy, Athens, Ohio, United States
Aurangzeb Khan
Affiliation:
[email protected], Ohio University, Department of Chemistry and Biochemistry, Athens, Ohio, United States
Savas Kaya
Affiliation:
[email protected], Ohio University, School of EECS, Athens, Ohio, United States
Venkat Vuppuluri
Affiliation:
[email protected], Ohio University, School of EECS, Athens, Ohio, United States
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Abstract

Magneto-optical properties of Ni- and Co-doped amorphous AlN thin films were investigated as a function of post grown annealing temperature using magneto-optical Kerr effect (MOKE) spectroscopy. The x-ray diffraction spectra confirmed that the as-grown material is amorphous and retained its morphology after thermal treatment; however the sample morphology strongly depends on the concentration of incorporated transition metals. We observed with help of transmission electron microscopy and atomic force microscopy that the films surface containing TMs with concentrations larger than ∼10 at.% undergo morphological changes suggesting possible Ni and Co atom clustering. Significant enhancement of the polar Kerr rotation signal was observed for Ni- and Co-doped a-AlN materials annealed above 300 °C in nitrogen. The studied materials have shown strong magnetic isotropy in polar geometry whereas the MOKE measurements in longitudinal geometry did not show an explicit signal for the transition metals doped a-AlN studied.

Keywords

magnetoopticamorphousthin film
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1202: Symposium I – III-Nitride Materials for Sensing, Energy Conversion and Controlled Light-Matter Interactions , 2009 , 1202-I05-06
Copyright
Copyright © Materials Research Society 2010

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References

1 Wolf, S., Awschalom, D., Buhrman, R., Daughton, J., Molnar, S. Von, Roukes, M., Chatchelkanova, A., and Treger, D., Science, 294, 1488 (2002).Google Scholar
2 Song, H., Mei, L., Ahang, Y., Yan, S., Ma, X., Wang, Y., Zhang, Z., et al., Physica B, 388, 130 (2007).Google Scholar
3 Pearton, S., Abernathy, C., Overberg, M., Thaler, G., Norton, D., Theororopouou, N., Hebard, A., Park, Y., Ren, F., Kim, J., and Boatner, L., J. Appl. Phys., 93, 1 (2003).Google Scholar
4 Pearton, S., Abernathy, C., Norman, D., Hebard, A., Park, Y., Boatner, L., and Budai, J., Mat. Scien. Eng. R, 40, 137 (2003).Google Scholar
5 Frazier, R., Stapleton, J., Thaler, G., Abernathy, C., Pearton, S., Rairigh, R., Kelly, J., Hebard, A., Nakarmi, M., Nam, K., Lin, J., Jiang, H., Zavada, J., and Wilson, R., J. Appl Phys., 94, 1592 (2003).Google Scholar
6 Ivanov, V., Aminov, T., Novotortsev, V., and Kalinnikov, V., Russ. Chem. Bull., Int. 53, 2357 (2004).Google Scholar
7 Zanghi, D., Delobbe, A., Traverse, A., and Krill, G., J. Phys.: Condens. Matter., 10, 9721 (1998).Google Scholar
8 Zanghi, D., Teodorescu, C. M., Petroff, F., Fischer, H., Bellouard, C., Clerc, C., Pelissier, C., and Traverse, A., J. Appl. Phys., 90, 6367 (2001).Google Scholar
9 Li, H., Bao, H. Q., Song, B., Wang, W. J., and Chen, X. L., Solid State Commun., 148, 406 (2008).Google Scholar
10 Sato, T., Endo, Y., Shiratsuchi, Yu., and Yamamoto, M., J. Magn. Magn. Mater., 310, e735 (2007).Google Scholar
11 Huttel, Y., Gomez, H., Clavero, C., Cebollada, A., Armelles, G., Navarro, E., Ciria, M., Benito, L., Arnaudas, J. I., and Kellock, A. J., J. Appl. Phys., 96, 1666 (2004).Google Scholar
12 Tanaka, H., M.S thesis, Dept. Elect. Eng, Ohio University, Athens, OH, 2008.Google Scholar
13 Zanatta, A., Khan, A. and Kordesch, M., J. Phys-Condens. Mat. 19, 436230 (2007).Google Scholar
14 Charge transport in disordered solids with applications in electronics, ed. Baranovski, S. Chichester, England; Hoboken, NJ, Wiley (2006).Google Scholar