M
Mariana Weissmann
Researcher at National University of La Plata
Publications - 52
Citations - 1268
Mariana Weissmann is an academic researcher from National University of La Plata. The author has contributed to research in topics: Ab initio & Electronic structure. The author has an hindex of 20, co-authored 52 publications receiving 1211 citations. Previous affiliations of Mariana Weissmann include National Scientific and Technical Research Council.
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Journal ArticleDOI
Appearance of room-temperature ferromagnetism in Cu-doped TiO 2-δ films
S. Duhalde,M F Vignolo,Federico Golmar,C. Chiliotte,C.E. Rodríguez Torres,Leonardo A. Errico,A.F. Cabrera,Mario Rentería,Francisco H. Sánchez,Mariana Weissmann +9 more
TL;DR: In this paper, the magnetic moment of a semiconductor doped with nonmagnetic impurities was calculated from the magnetization curves, and it was shown that the role of oxygen vacancies is crucial for the appearance of ferromagnetism.
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Theoretical study of magnetism in transition-metal-doped Ti O 2 and Ti O 2 − δ
TL;DR: In this paper, the structural, electronic, and magnetic properties of doped rutile were studied for two different impurity concentrations (25% and 6.25%) considering different distributions of the impurities in the host lattice.
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Electronic properties of transition-metal clusters:Consideration of the spillover in a bulk parametrization
TL;DR: In this article, the electronic structure of 3D transition-metal clusters with a model Hamiltonian that takes into account electron spillover at the cluster surface and uses bulk parameter values for the interactions is calculated.
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Theoretical study of iron-filled carbon nanotubes
TL;DR: In this article, the structural arrangements and magnetic properties of iron encapsulated in single wall carbon nanotubes (SWCNT) are investigated, using ab initio methods, the geometry and magnetic structure of freestanding and encapsulated Fe nanowires, and also the properties of the nanowire-nanotube system when defects are present in the single wall nanotube.
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Large Variations in the Magnetization of Co Clusters Induced by Noble-Metal Coating
TL;DR: In this paper, the electronic and magnetic properties of small Co clusters, coated with Ag or Cu, performed with a parametrized tight-binding method are analyzed, and it is shown that the noble metal develops a net polarization that changes appreciably the total magnetic moment of the cluster.