Zobrazeno 1 - 10 of 1 320 pro vyhledávání: '"M Teodorescu"'
1
Akademický článek
Reversible oxidation of ethylene on ferroelectric BaTiO3(001): An X-ray photoelectron spectroscopy study
Autor: Alexandru-Cristi Iancu, Adela Nicolaev, Nicoleta G. Apostol, Laura E. Abramiuc, Cristian M. Teodorescu
Publikováno v: Heliyon, Vol 10, Iss 15, Pp e35072- (2024)
Adsorption and desorption of ethylene on BaO-terminated (001) barium titanate are investigated by X-ray photoelectron spectroscopy. Carbon is found in an oxidized state, at a binding energy similar to that resulting from CO adsorption on BaTiO3(001).
Externí odkaz: https://doaj.org/article/dca2245500e647c6a948a2f961b545b4
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2
Akademický článek
Intrapericardial paraganglioma
Autor: M Teodorescu, E Coche, B Ghaye
Publikováno v: Journal of the Belgian Society of Radiology, Vol 97, Iss 3, Pp 170-171 (2014)
Background: A 38-year-old woman presented for a follow-up CT of the neck and the chest. She had a history of familial disease and neck surgery 11 years earlier. Physical examination and laboratory results were normal. An intrapericardial lesion was s
Externí odkaz: https://doaj.org/article/cc4f645827ec43428f9cb09d358a58fc
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3
Akademický článek
Two dimensional landscape of ferromagnetic domains and the resulting magnetization curves
Autor: Cristian M. Teodorescu
Publikováno v: Results in Physics, Vol 54, Iss , Pp 107109- (2023)
Recently, Kittel’s theory of ferromagnetic domains in thin films in one dimension, i. e. with the domains extended infinitely over one in-plane direction and with the anisotropy axis oriented perpendicular to the film was revisited by considering t
Externí odkaz: https://doaj.org/article/4f7a21c95f6843a88c500beee52730f9
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4
Akademický článek
Kittel’s model for ferromagnetic domains, revised and completed, including the derivation of the magnetic hysteresis
Autor: Cristian M. Teodorescu
Publikováno v: Results in Physics, Vol 46, Iss , Pp 106287- (2023)
In 1946 and 1949, Charles Kittel proposed a simple model for the size of ferromagnetic domains that is still widely used nowadays [C. Kittel, Phys. Rev. 70 (1946) 965–971 and Rev. Mod. Phys. 21 (1949) 541–583], including for other ferroic systems
Externí odkaz: https://doaj.org/article/38575d5a667d4fc8817b023b4d1c6503
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5
Akademický článek
Nanoscopic correlations from curve fitting of photoelectron spectromicroscopy data cubes of lead zirconate titanate films
Autor: Laura E. Abramiuc, Liviu C. Tănase, Alexei Barinov, Cristina F. Chirilă, Cristian M. Teodorescu
Publikováno v: Results in Physics, Vol 36, Iss , Pp 105436- (2022)
Photoelectron spectromicroscopy data cubes with sub-micrometer spatial resolution from a lead zirconate titanate thin film are fitted in each spatial point for several areas investigated, and correlations between the results of the fitting parameters
Externí odkaz: https://doaj.org/article/6cc91d95707d42bda5347e5bd8214148
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7
Akademický článek
Spin asymmetry originating from densities of states: Criterion for ferromagnetism, structures and magnetic properties of 3d metals from crystal field based DOSs
Autor: Cristian M. Teodorescu
Publikováno v: Results in Physics, Vol 25, Iss , Pp 104241- (2021)
Ferromagnetism in 3d metals is re-examined in a simple band model. It is shown that the molecular field model cannot account for the low values of coercive field in ferromagnetic pure metals, and that the standard Stoner theory of band ferromagnetism
Externí odkaz: https://doaj.org/article/e497a4ec7bd541b2b23081cba7f3e7f7
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