20 citations · 90 across the 7 of their papers we have counts for
7 papers
Nature of the positron state in CdSe quantum dots
Wenqin Shi, Vincent Callewaert, Bernardo Barbiellini +11
Previous studies have shown that positron-annihilation spectroscopy is a highly sensitive probe of the electronic structure and surface composition of ligand-capped semiconductor Q…
Ligand-Surface Interactions and Surface Oxidation of Colloidal PbSe Quantum Dots Revealed by Thin-film Positron Annihilation Methods
Wenqin Shi, Stephan W. H. Eijt, C. S. Suchand Sandeep +6
Positron Two Dimensional Angular Correlation of Annihilation Radiation (2D-ACAR) measurements reveal modifications of the electronic structure and composition at the surfaces of Pb…
Quality of Heusler Single Crystals Examined by Depth Dependent Positron Annihilation Techniques
C Hugenschmidt, A Bauer, P Böni +9
Heusler compounds exhibit a wide range of different electronic ground states and are hence expected to be applicable as functional materials in novel electronic and spintronic devi…
Surfaces of colloidal PbSe nanocrystals probed by thin-film positron annihilation spectroscopy
L. Chai, W. Al-Sawai, Y. Gao +11
Positron annihilation lifetime spectroscopy (PALS) and positron-electron momentum density (PEMD) studies on multilayers of PbSe nanocrystals (NCs), supported by transmission electr…
Bulk Fermi surface and momentum density in heavily doped LaSrCuO using high resolution Compton scattering and positron annihilation spectroscopies
W. Al-Sawai, B. Barbiellini, Y. Sakurai +13
We have observed the bulk Fermi surface (FS) in an overdoped (=0.3) single crystal of LaSrCuO by using Compton scattering. A two-dimensional (2D) momentum densit…
Electronic coupling of colloidal CdSe nanocrystals monitored by thin-film positron-electron momentum density methods
S. W. H. Eijt, P. E. Mijnarends, L. C. van Schaarenburg +4
The effect of temperature controlled annealing on the confined valence electron states in CdSe nanocrystal arrays, deposited as thin films, was studied using two-dimensional angula…