Zobrazeno 1 - 10 of 52 pro vyhledávání: '"S Mähl"'
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Akademický článek
Ultrafast photoelectron spectroscopy of solutions: space-charge effect
Autor: R Al-Obaidi, M Wilke, M Borgwardt, J Metje, A Moguilevski, N Engel, D Tolksdorf, A Raheem, T Kampen, S Mähl, I Yu Kiyan, E F Aziz
Publikováno v: New Journal of Physics, Vol 17, Iss 9, p 093016 (2015)
The method of time-resolved XUV photoelectron spectroscopy is applied in a pump–probe experiment on a liquid micro-jet. We investigate how the XUV energy spectra of photoelectrons are influenced by the space charge created due to ionization of the
Externí odkaz: https://doaj.org/article/a2aa30cc10924bdaa5263443091e89e6
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2
Analysis of XPS valence band spectra of polymers using a density-functional theory based calculation of model oligomers
Autor: V. Schlett, S. Mähl, B. Schneider, Martin Neumann, A. Baalmann
Publikováno v: Journal of Polymer Science Part A: Polymer Chemistry. 37:95-103
XPS valence band spectra of 10 polymers (PE, PcI, PPG, PVME, PVA, PVMK, PAA, PMA, PMMA, and PGMA) were measured and simulated with the DMol ab initio molecular orbital program. We performed the calculations with model compounds such as trimers, penta
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::00fd1aadd51afc6a83f1381a23a0af56
https://doi.org/10.1002/(sici)1099-0518(19990101)37:1<95::aid-pola11>3.0.co
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3
Band gap stability in CeRhSb
Autor: S. Mähl, Martin Neumann, A. Jezierski, A. Zygmunt, Andrzej Ślebarski
Publikováno v: Physical Review B. 58:13498-13505
The electronic structure and magnetic properties of CeRhSb were investigated by substituting Rh with 10% of Pd or Co, or Sb with 10% Sn. The $3d$ and $4d$ x-ray photoelectron spectroscopy (XPS) spectra show that CeRhSb and its alloys with Pd and Co a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1c274f1d410da567b15a7ac17e6ce032
https://doi.org/10.1103/physrevb.58.13498
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5
Spin and valence fluctuations in CeMn4Al8 and CeMn6Al6
Autor: S. Mähl, St. Lütkehoff, M. Coldea, Martin Neumann, R. Coldea
Publikováno v: Journal of Alloys and Compounds. 278:72-79
The magnetic susceptibility and X-ray photoelectron spectra of CeMn4Al8 and CeMn6Al6 and of the reference compounds YMn4Al8, CeCu4Al8, YMn6Al6 and LaMn6Al6 are reported. The occurrence of a Mn moment in the investigated compounds is strongly correlat
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a92bdc8b0da7301c437bd059c750a6a3
https://doi.org/10.1016/s0925-8388(98)00620-3
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6
Electronic structure of
Autor: S. Mähl, Martin Neumann, G. Borstel, A. Kowalczyk, A. Jezierski
Publikováno v: Journal of Physics: Condensed Matter. 10:6277-6283
The electronic structure of and corresponding x-ray photoemission spectra (XPS) are presented. The band structure is calculated by the spin-polarized tight binding linear muffin tin orbital (TB LMTO) method. The XPS valence bands are compared with th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7ce86c61500b7d21ed75489dc2efd104
https://doi.org/10.1088/0953-8984/10/28/009
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7
Suppression of the gap energy in Zr-Ni-Sn and Ti-Ni-Sn by partial substitution of Zr and Ti by Ce
Autor: Martin Neumann, A. Jezierski, A. Zygmunt, S. Mähl, Andrzej Ślebarski
Publikováno v: Physical Review B. 57:9544-9549
We report on magnetic measurements and electronic structure investigations of the alloyed compounds Zr-Ni-Sn and Ti-Ni-Sn. Both belong to the group of semi-Heusler alloys, and are classified as narrow-gap semiconductors with indirect gaps near 500 me
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3b88c5c713aeb29f6dafc20758b15504
https://doi.org/10.1103/physrevb.57.9544
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8
Some aspects of the fitting of XPS core spectra of polymers
Autor: S. Mähl, Martin Neumann, A. Baalmann, V. Schlett
Publikováno v: Surface and Interface Analysis. 26:204-212
Determination of chemical structure by means of XPS through least-squares fitting of core lines is a widely used method. We present a model for the description of XPS core lines from polymers under simultaneous consideration of the lineshape and the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::980e368048e99385f85c173d76c18d54
https://doi.org/10.1002/(sici)1096-9918(199803)26:3<204::aid-sia361>3.0.co
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9
Electronic structure of CeNi1−xPdxSn and LaMSn(M=Ni,Cu,Pd)
Autor: A. Jezierski, G. Borstel, Martin Neumann, Andrzej Ślebarski, S. Mähl
Publikováno v: Physical Review B. 56:7245-7254
The electronic structure of CeNi{sub 1{minus}x}Pd{sub x}Sn has been studied by photoemission spectroscopy. CeNiSn belongs to the class of Kondo insulating materials. The gap formed at the Fermi level is strongly suppressed by substituting Pd for Ni.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1e60b5340ea0c8ceff27ca56125b685c
https://doi.org/10.1103/physrevb.56.7245
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10
Characterisation of the VG ESCALAB instrumental broadening functions by XPS measurements at the Fermi edge of silver
Autor: Martin Neumann, A. Baalmann, V. Schlett, S. Mähl, S. Dieckhoff
Publikováno v: Journal of Electron Spectroscopy and Related Phenomena. 85:197-203
A mathematical algorithm is presented to determine the broadening function of an XPS spectrometer using smoothed first derivatives of experimental Fermi edges for the VG ESCALAB 220i-XL instrument at various pass energies. Different smoothing algorit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c9b8942fda8ff41341a5f798d5fbf7c
https://doi.org/10.1016/s0368-2048(97)00074-1
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