Przeglądaj Acta Physicae Superficierum według tytułu
Wyświetlanie pozycji 1-20 z 26
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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. -
Angular Distribution of Planar Channeled Protons in Si Crystal
(Wydawnictwo 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. -
Deconvolutional Methods in the Reconstruction of Local Material Parameters
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990) -
Deeply Penetrating Elastic and Coupled Surface Waves in Crystals
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990)Deeply penetrating elastic and coupled surface waves (DPSW) in crystals are treated. It is shown that the parameters of the DPSW are very sensitive to near-surface disturbances of the acoustic and electromagnetic paraipeters ... -
Dependence of the SWR Linewidth on the Wavevector in Amorphous Thin Films
(Wydawnictwo Uniwersytetu ŁódzkiegoWydawnictwo 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 ... -
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 ... -
Interactions Between Discontinuity Surfaces and Thermo-Electro-Magnetoelastic Waves
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990) -
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 ... -
Microscopic and Macroscopic Surface Dynamics of Highly Anisotropic Crystals
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990) -
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 ... -
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 ... -
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 ... -
Spin Polarization of Low Energy Electrons Scattered from Magnetic Ni(110) Surfaces
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990)The continuation of an analytical approach to elastic spin polarized low energy electron diffraction (SPLEED) [1] from magnetic surfaces is presented and searched numerically using three different layer dependent surface ... -
Surface Acoustic Solitons - Quantum Theoretical Approach
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990) -
Surface Acoustic Wave Oscillators
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990)Then: are principal advances in the field of application of surface acoustic wave (SAW) delay lines and resonators in stable microwave frequency sources in the frequency range from 100 MHz to 1 GHz and above Advances, ... -
Surface Acoustic Waves on Semiconductors
(Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1990)The paper is concerned with a discussion of SAW properties on semiconductor substrates. Some applications are briefly highlighted. -
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 ...