G
G. Ceballos
Researcher at Free University of Berlin
Publications - 15
Citations - 422
G. Ceballos is an academic researcher from Free University of Berlin. The author has contributed to research in topics: Magnetic circular dichroism & X-ray magnetic circular dichroism. The author has an hindex of 9, co-authored 15 publications receiving 400 citations.
Papers
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Journal ArticleDOI
Layer-resolved magnetic moments in Ni/Pt multilayers
F. Wilhelm,Panagiotis Poulopoulos,G. Ceballos,Heiko Wende,K. Baberschke,P. Srivastava,Diana Benea,Hubert Ebert,Mavroeidis Angelakeris,N. K. Flevaris,D. Niarchos,Andrei Rogalev,N. B. Brookes +12 more
TL;DR: The magnetic moments in Ni/Pt multilayers are thoroughly studied by combining experimental and ab initio theoretical techniques and induced Pt magnetic moments localized mostly at the interface are revealed.
Journal ArticleDOI
Magnetic moments and Curie temperatures of Ni and Co thin films and coupled trilayers
P. C. Srivastava,F. Wilhelm,Andreas Ney,Michael Farle,Heiko Wende,N. Haack,G. Ceballos,K. Baberschke +7 more
TL;DR: In this paper, the authors presented x-ray magnetic circular dichroism (XMCD) measurements on single layers, bilayers, and trilayers consisting of Ni, Co, and Cu.
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Shape resonances of oriented molecules: ab initio theory and experiment on hydrocarbon molecules
N. Haack,G. Ceballos,Heiko Wende,K. Baberschke,Dimitri Arvanitis,A. L. Ankudinov,John J. Rehr +6 more
TL;DR: Ab initio calculations of the x-ray absorption cross section for the near edge x-rays absorption fine structure of C2H6, and C2 H4, andC2H2 at the C K-edge based on a full multiple scattering formalism support the existence of features in the spectra.
Journal ArticleDOI
X-ray magnetic circular dichroic magnetometry on Ni/Pt multilayers
Panagiotis Poulopoulos,F. Wilhelm,Heiko Wende,G. Ceballos,K. Baberschke,Diana Benea,Hubert Ebert,Mavroeidis Angelakeris,N. K. Flevaris,Andrei Rogalev,N. B. Brookes +10 more
TL;DR: In this paper, the role of intermixing in the reduction of the Ni magnetic moments at the interface was discussed and the results were compared to ab initio calculations and to previous experiments performed on NiPt alloys.
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Molecular geometry modifications upon adsorption for N2O: N and O K-edge NEXAFS
TL;DR: In this paper, the angular dependent intensity of the molecular resonances was derived from a detailed analysis of the angular and coverage dependent bent of the N2O molecules upon adsorption, and it was concluded that the N 2O molecules couple with the Cu surface through the terminal Nt atom in contrast to the Ag surface where the Nc atom is involved.