Synchrotron Photoemission Study of Ferromagnetic (Zn,Co)O Films

• Authors: E. Guziewicz , M. Lukasiewicz , L. Wachnicki , K. Kopalko , P. Dłużewski , R. Jakiela , M. Godlewski
• Languages of publication: EN

Abstracts

EN

The electronic structure of ferromagnetic (Zn,Co)O films was investigated by resonant photoemission across the Co 3p → Co 3d photoionization threshold, e.g. using photon energy between 50 eV and 66 eV. The films were grown by atomic layer deposition at temperature between 160C and 300C and they differed in distribution and content of cobalt. The maximum of the Fano resonance was observed at photon energy 63 eV, whereas the minimum at 58 eV. The difference between energy distribution curves taken at 63 eV and the one taken at 58 eV was calculated for a series of samples. It shows that the Co 3d contribution to the valence band electronic structure of ferromagnetic (Zn,Co)O films differs significantly from that of the films which show the paramagnetic response.

Keywords

EN

73.20.At; 75.50.Pp; 81.05.Dz; 81.15.Gh

Discipline

• 81.15.Gh: Chemical vapor deposition (including plasma-enhanced CVD, MOCVD, ALD, etc.)(for chemistry of MOCVD, see 82.33.Ya in physical chemistry and chemical physics)
• 81.05.Dz: II-VI semiconductors
• 73.20.At: Surface states, band structure, electron density of states
• 75.50.Pp: Magnetic semiconductors

• Journal: Acta Physica Polonica A
• Year: 2011
• Volume: 120
• Issue: 6A
• Pages: A-40-A-42

Dates

published

2011-12

Contributors

author

E. Guziewicz

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

author

M. Lukasiewicz

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

author

L. Wachnicki

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

author

K. Kopalko

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

author

P. Dłużewski

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

author

R. Jakiela

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

author

M. Godlewski

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
• Department of Mathematics and Natural Sciences, College of Science, Cardinal S. Wyszyński University, 01-815 Warsaw, Poland

References

• [1] T. Dietl, H. Ohno, F. Matsukura, J. Cibert, D. Ferrand, Science 287, 1019 (2000)
• [2] K. Ueda, H. Tabata, T. Kawaii, Appl. Phys. Lett. 79, 988 (2001)
• [3] J.M.D. Coey, K. Wongsaprom, J. Alaria, M. Venkatesan, J. Phys. D, Appl. Phys. 41, 134012 (2008)
• [4] A.J. Behan, A. Mokhtari, H.J. Blythe, D. Score, X.-H. Xu, J.R. Neal, A.M. Fox, G.A. Gehring, Phys. Rev. Lett. 100, 047206 (2008)
• [5] J.H. Park, M.G. Kim, H.M. Jang, S. Ryu, Y.M. Kim, Appl. Phys. Lett. 84, 1338 (2004)
• [6] M.I. Łukasiewicz, B. Witkowski, M. Godlewski, E. Guziewicz, M. Sawicki, W. Paszkowicz, E. Łusakowska, R. Jakieła, T. Krajewski, I.A. Kowalik, B.J. Kowalski, Acta Phys. Pol. A 116, 921 (2009)
• [7] E. Guziewicz, M.I. Lukasiewicz, L. Wachnicki, K. Kopalko, A. Kovács, R.E. Dunin-Borkowski, B.S. Witkowski, B.J. Kowalski, J. Sadowski, M. Sawicki, R. Jakiela, M. Godlewski, Radiat. Phys. Chem. 80, 1046 (2011)
• [8] M.I. Łukasiewicz, B. Witkowski, M. Godlewski, E. Guziewicz, M. Sawicki, W. Paszkowicz, R. Jakieła, T.A. Krajewski, G. Łuka, Phys. Status Solidi B 247, 1666 (2010)
• [9] M. Godlewski, E. Guziewicz, M.I. Łukasiewicz, I.A. Kowalik, M. Sawicki, B.S. Witkowski, R. Jakieła, W. Lisowski, J.W. Sobczak, M. Krawczyk, Phys. Status Solidi B 248, 1596 (2011)
• [10] U. Fano, Phys. Rev. 124, 1866 (1961)
• [11] R.T. Girard, O. Tjernberg, G. Chiaia, S. Soderholm, U.O. Karlson, C. Wigren, H. Nylen, I. Linden, Surf. Sci. 373, 409 (1997)
• [12] M. Kobayashi, Y. Ishida, J.I. Hwang, T. Mizokawa, A. Fuijmori, K. Mamiya, J. Okamoto, Y. Takeda, T. Okane, Y. Saitoh, Y. Muramatsu, A. Tanaka, H. Saeki, H. Tabata, T. Kawai, Phys. Rev. B 72, 201201(R) (2005)
• [13] S.C. Wi, J.-S. Kang, J.H. Kim, S.-B. Cho, B.J. Kim, S. Yoon, B.J. Suh, S.W. Han, K.H. Kim, K.J. Kim, B.S. Kim, H.J. Song, H.J. Shin, J.H. Shim, B.I. Min, Appl. Phys. Lett. 84, 4233 (2004)

Identifiers

DOI

10.12693/APhysPolA.120.A-40