Fano Resonance of Eu^{2+} and Eu^{3+} in (Eu,Gd)Te MBE Layers

• Authors: B. Orlowski , B. Kowalski , P. Dziawa , M. Pietrzyk , S. Mickievicius , V. Osinniy , B. Taliashvili , I. Kowalik , T. Story , R. Johnson
• Languages of publication: EN

Abstracts

EN

Resonant photoemission spectroscopy, with application of synchrotron radiation, was used to study the valence band electronic structure of clean surface of (EuGd)Te layers. Fano-type resonant photoemission spectra corresponding to the Eu 4d-4f transition were measured to determine the contribution of 4f electrons of Eu^{2+} and Eu^{3+} ions to the valence band. The resonant and antiresonant photon energies of Eu^{2+} ions were found as equal to 141 V and 132 eV, respectively and for Eu^{3+} ions were found as equal to 146 eV and 132 eV, respectively. Contribution of Eu^{2+}4f electrons was found at the valence band edge while for Eu^{3+} it was located in the region between 3.5 eV and 8.5 eV below the valence band edge.

Keywords

EN

79.60.-i; 71.20.Mq

Discipline

• 79.60.-i: Photoemission and photoelectron spectra(for photoelectron spectroscopy, see 87.64.ks in biological physics; 82.80.Pv in chemical analysis)
• 71.20.Mq: Elemental semiconductors

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2005
• Volume: 108
• Issue: 5
• Pages: 803-807

Dates

published

2005-11

received

2005-06-04

Contributors

author

B. Orlowski

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

author

B. Kowalski

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

author

P. Dziawa

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

author

M. Pietrzyk

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

author

S. Mickievicius

• Semiconductor Physics Institute, A. Gostauto 11, 2600 Vilnius, Lithuania

author

V. Osinniy

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

author

B. Taliashvili

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

author

I. Kowalik

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

author

T. Story

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

author

R. Johnson

• Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany

References

• 1. A. Mauger, C. Godart, Phys. Rep., 141, 51, 1986
• 2. G.A. Prinz, Science, 282, 1660, 1998
• 3. I. Zutic, J. Fabian, S. Das Sarma, Rev. Mod. Phys., 76, 324, 2004
• 4. S. Hufner, Photoelectron Spectroscopy, Springer Series in Solid-State Science, Vol. 82, Springer, Berlin 1995
• 5. L. Ley, M. Cardona, Photoemission in Solids I and II, Topics in Applied Physics, Vols. 26/27, Springer, Berlin 1979
• 6. Solid-State Photoemission and Related Methods, Eds. W. Schattke, M.A. Van Hove, Wiley-VCH, Berlin 2003
• 7. S.L. Molodtsov, M. Richter, S. Danzenbacher, S. Wieling, L. Steinbeck, C. Laubschat, S.A. Gorovikov, Phys. Rev. Lett., 78, 142, 1997
• 8. C.G. Olson, P.J. Benning, M. Schmidt, D.W. Lynch, P. Canfield, Phys. Rev. Lett., 76, 4265, 1996
• 9. U. Fano, Phys. Rev., 124, 1866, 1961
• 10. W.D. Scheider, C. Laubschat, G. Kalkowski, Phys. Rev. B, 28, 2017, 1983
• 11. N. Martensson, B. Reihl, W.D. Schneider, Phys. Rev B, 25, 1446, 1982

Identifiers

DOI

10.12693/APhysPolA.108.803