BackBrowsing Artículos by Author "Zabala Unzalu, Nerea"
Now showing items 1-4 of 4
-
Identification of Ni-vacancy defect in Ni-Mn-Z (Z = Ga, Sn, In): An experimental and DFT positron annihilation study
Unzueta Solozabal, Iraultza
; ; ; ; ; ; Plazaola Muguruza, Fernando (APS, 2019-02-21)
[EN] By means of experimental positron-annihilation-lifetime measurements and theoretical density functional theory (DFT) positron-lifetime calculations, vacancy-type defects in Ni50Mn50−xSnx (x=25, 20,15,13,10) and ... -
Observation of a charge delocalization from Se vacancies in Bi2Se3: A positron annihilation study of native defects
Unzueta Solozabal, Iraultza; ; ; ; ; Plazaola Muguruza, Fernando (APS, 2016-07-27)
[EN] By means of positron annihilation lifetime spectroscopy, we have investigated the native defects present in Bi2Se3, which belongs to the family of topological insulators. We experimentally demonstrate that selenium ... -
Quantum size effects of Pb overlayers at high coverages.
(Elsevier, 2007-07-18)We have studied Pb thin films as a function of the thickness up to 60 monolayers (MLs) using ab initio first principles and model calculations. Magic heights corresponding to a modulated oscillatory pattern of the energy ... -
Restored quantum size effects of Pb overlayers at high coverages
(APS, 2007-04-10)Abnormally large stability of Pb nanostructures grown on metallic or semiconductor substrates has been observed even for heights of about 30 monolayers. Using both density-functional theory calculations and analytical ...