Przeglądaj Acta Physicae Superficierum według daty wydania
Wyświetlanie pozycji 1-20 z 26
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Positrons at Metal Boundary
(Wydawnictwo Uniwersytetu ŁódzkiegoWydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990)Current knowledge of positron-metal boundary interaction is reviewed. The review interlinks such phenomena as positron trapping at surface, escape of positrons from metals, directional action of metal-metal contact on ... -
Hybridization and Depth-Related Effects of Surface and Impurity-Localized Modes in Finite Tight-Binding Chain
(Wydawnictwo Uniwersytetu ŁódzkiegoWydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990) -
Hyperfine Interactions Versus Intrinsic Symmetries of Many-Electron Systems in Near-Surface Regions
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990)The paper aims at unifying various types of hyperfme interactions from the viewpoint of Finsler geometry and supercomplex structures, reflecting the intrinsic symmetries of many-electron systems, with special reference ... -
Advantages to Be Gained from the Selective Spin-Wave Resonance Critical Angles Effect
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990)We show that the exchange constant and surface anisotropy constants of a thin ferromagnetic film can be determined by measuring the critical angles at which the successive spin-wave mode peaks vanish. -
Investigations of the Surface Dielectric Function by Means of the Scanning Ellipsometry and Transition Radiation Methods
(Wydawnictwo Uniwersytetu ŁódzkiegoWydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990)We describe the scanning ellipsometry and transition radiation methods as well as their applications to surface dielectric function measurements. In particular, we present the results for a gadolinium sample in the visible ... -
Dependence of the SWR Linewidth on the Wavevector in Amorphous Thin Films
(Wydawnictwo Uniwersytetu ŁódzkiegoWydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990) -
Classification of Electron States in a Thin Film in an External Longitudinal Magnetic Field
(Wydawnictwo Uniwersytetu ŁódzkiegoWydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990)The electron energy spectrum is considered for a simple model of a thin film in an external longitudinal magnetic field. A systematic classification of the electron states in the thin film is carried out. -
Microscopic and Macroscopic Surface Dynamics of Highly Anisotropic Crystals
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990) -
Deconvolutional Methods in the Reconstruction of Local Material Parameters
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990) -
GHz Range SAW Transducers Using Electron Beam Lithography
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990)Nanometer electrodes of the order of 0.085 μm width have been fabricated using direct electron beam lithography, normal lift-off techniques and 0₂-plasma cleaning system. These techniques have been applied to Inter-Digital ... -
Surface Acoustic Solitons - Quantum Theoretical Approach
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990) -
Surfaces of Нigh-Tс Superconductors Studied by Means of the Scanning Tunneling Microscope
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990)Observations of the natural surface of BiSrCaCu₂Oₓ sintered ceramics applying the scanning tunneling microscope are reported. Measurements were performed in air at room temperature. It can be deduced from the surface ... -
The Effects of Stresses on the Properties of Domain Walls in Magnetoelastic Thin Films
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990) -
Scattering of Surface Elastic Waves by Surface Irregularities
(Wydawnictwo Uniwersytetu ŁódzkiegoWydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990)The paper deals with the scattering of elastic surface waves (ESW) on rough solid surfaces. The surface profile is modelled by a random field of two-dimensional isotropy. The treatment is based on the Green function ... -
Programmable Surface Acoustic Wave Oscillator
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990)A programmable surface acoustic wave (SAW) delay line oscillator with a wide range of frequency variation is presented. The device consists of an amplifier with SAW delay line and a special phase shifter used as feedback ... -
Tunneling, Raman and Stm Studies Of Thin YBaCuO Films
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990) -
Transition Radiation from Rough Surfaces
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990)We propose a theory of transition radiation emitted by charged particles entering a rough interface between two media. We show that the radiation process is influenced by surface inhomogeneities distributed both ... -
Angular Distribution of Planar Channeled Protons in Si Crystal
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990) -
Transition Radiation Emitted from a Surface Irregularity Shaped as Rectangular Step and Rectangular Groove
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990)Transition radiation emitted when a nonrelativistic particle (β=0.2-0.5) enters a surface irregularity shaped as a rectangular step and a rectangular groove and having the dielectric constant ε=1.4-3.8 has been investigated. ... -
The Role of Interfaces in Plasmon-Phonon Coupling in Semiconductor Quantum Wells and Superlattices
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990)