Results found: 3

Number of results on page

Search results

Sort By:

Limit search:

Photoemission Electronic Spectra οf CdTe/Pb_{0.95}Eu_{0.05}Te/CdTe

100%

Orlowski B., Dziawa P., Gas K., Reszka A., Mickievicius S., Thiess S., Drube W.

Acta Physica Polonica A

2011

vol. 120

issue 5

960-963

The synchrotron radiation was used to apply tunable high energy X-ray photoemission spectroscopy for investigation of electronic structure of semiconductor nanostructure CdTe/Pb_{0.95}Eu_{0.05}Te/CdTe/GaAs(001) top part. The Pb_{0.95}Eu_{0.05}Te (6 nm thick) was buried under thin (22 nm) top layer of CdTe transparent for part of electrons photoemitted from Pb_{0.95}Eu_{0.05}Te buried layer. The top layer of CdTe was sputtered by Ar ion bombardment for surface cleaning and for leaving the thickness of CdTe more transparent for photoelectrons emitted from buried layer. For these thickness of the top layer the photoemission energy distribution curves corresponding to the valence band and core levels electrons of the buried layer atoms were measured with application of synchrotron radiation of energy hν = 3510 eV. The measured spectra corresponding to the buried layer atoms were observed in the valence band region and in the high binding energy region for core levels of Pb 4f, Pb 3d. The valence band contribution and core levels Cd 4d and Cd 3d were obtained mainly from top cover layer. Measured Te 4d, Te 3d and Te 4d spectra possess contribution as well from top cover layer as from the buried layer. The amount of Eu atoms was to small to be reasonable detected and presented in the paper.

Band Structure of Mn/ZnTe Studied, by Angle-Resolved Photoelectron Spectroscopy

100%

Kowalski B., Orlowski B., Pietrzyk M., Kaczor P., Kopalko K., Mickievicius S., Johnson R.

Acta Physica Polonica A

2005

vol. 108

issue 5

735-740

The electronic band structure of Mn/ZnTe(110) (1×1) has been studied by angle-resolved photoelectron spectroscopy. The sets of spectra were acquired for the clean surface and after in situ deposition of 0.4 ML of Mn, in order to compare the band structures and to reveal changes brought about by the presence of Mn. The experimental band structure diagram of Mn/ZnTe along theΓ-K direction in the Brillouin zone has been derived from the experimental data. Indications of interaction between the Mn 3d states and sp^3 bands of the semiconductor are discussed.

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

84%

Orlowski B., Kowalski B., Dziawa P., Pietrzyk M., Mickievicius S., Osinniy V., Taliashvili B., Kowalik I., Story T., Johnson R.

Acta Physica Polonica A

2005

vol. 108

issue 5

803-807

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.

Refine search results

3 Acta Physica Polonica A

1 2011

2 2005

3 Mickievicius S.

3 Orlowski B.

2 Dziawa P.

2 Johnson R.

2 Kowalski B.

2 Pietrzyk M.

1 Drube W.

1 Gas K.

1 Kaczor P.

1 Kopalko K.

1 Kowalik I.

1 Osinniy V.

1 Reszka A.

1 Story T.

1 Taliashvili B.

1 Thiess S.

Search results

Photoemission Electronic Spectra οf CdTe/Pb_{0.95}Eu_{0.05}Te/CdTe

Band Structure of Mn/ZnTe Studied, by Angle-Resolved Photoelectron Spectroscopy

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