Autor: Stöhr, J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Photoelectron Emission Microscopy and its Application to the Study of Polymer Surfaces
Autorzy:: Cossy-Favre, A.
Diaz, J.
Anders, S.
Padmore, H.
Liu, Y.
Samant, M.
Stöhr, J.
Brown, H.
Russell, T. P.
Powiązania:: https://bibliotekanauki.pl/articles/1964108.pdf
Data publikacji:: 1997-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.16.Ms
73.61.Ph
64.75.+g
Opis:: The X-ray photoelectron emission microscopy at the Advanced Light Source has a spatial resolution of 0.2 microns at an accelerating voltage of 12 kV. The tunability of the photon energy is used to provide chemical state information using near edge X-ray absorption fine structure spectroscopy on the sub-micrometer scale. The homogeneity of thin films of polymer blends was studied for various film thicknesses. The polystyrene/polyvinylmethylether film of 194 Å showed protrusions of 2-3 μm diameter with an enriched polystyrene content while the polystyrene/polystyreneacrylonitrile 504 Å thick films showed 5-6 μm segregated regions without any topological structure.
Źródło:: Acta Physica Polonica A; 1997, 91, 5; 923-927
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Indications for Diamagnetic Shift in the Ground State of Boron in Silicon
Autorzy:: Stöhr, M.
Chroboczek, J. A.
Powiązania:: https://bibliotekanauki.pl/articles/1891427.pdf
Data publikacji:: 1991-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.55.Ht
71.70.-d
72.20.-i
Opis:: Indications for the observation of the diamagnetic shrinkage of the boron acceptor wave function (WF) in Si are reported. Uniaxial stress (X) was used to split the ground state (GS) of the boron acceptor into two energy levels with spatially complementary WF. The magnetic field selectively induces a shrinking of one of the two WF, depending on whether it is applied parallel or perpendicular to the X axis. As a result, the hopping transitions between lower and higher energy levels are redistributed, leading to significant changes in the activation energy ε$\text{}_{3}$. This effect was borne out by experiment.
Źródło:: Acta Physica Polonica A; 1991, 80, 3; 465-468
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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