Students practice
Zoloschuk A.A. Selection and ordering teaching materials on discipline «Selected questions of physics» | Print |
Written by Paltsun   
Wednesday, 13 January 2016 17:49

During the research practices we examined guidelines concerning subjects such as "Selected questions of physics." On this basis material was chosen for organizing presentations regarding the first semester of lectures on discipline "Selected questions of physics." In this presentation the following topics were presented lectures: "Crystal. The crystal lattice. Operations symmetry crystal structures. Law Brega. Methods crystalline structures. Elementary theory of diffraction. The inverse lattice. In terms of selection diffraction. The amplitude of the scattering. The structural factor basis. Quantum lattice vibrations in nature. Phonon as quasiparticles. Univariate chain of identical atoms. The function of the Lagrange chain atoms of two grades in harmonic approximation. Quantized lattice vibrations. Proper function in the space of occupation numbers. Zero vibrations       etc ".

To better understand the data subject, was chosen some media footage.

Last Updated on Wednesday, 13 January 2016 17:57
 
Guseva Y. Influence of symmetry breaking on the border of the two ferromagnetic materials in the excitation of magnetic soliton | Print |
Written by Paltsun   
Monday, 28 December 2015 21:27

In recent years mahnonni crystals become one of the most interesting and promising nanomaterials in the development of microwave technology and optoelectronics. They are promising materials for solving the problems of miniaturization of electronic components, reducing their energy consumption. Also, the study of mahnonnyh crystals is of interest in because of the idea of using spin waves in them as the media.

Our work consists of an introduction, three chapters, conclusions and list of references.

In the introduction we have proved the relevance and practical value of the chosen theme, set aims and objectives of the research, pointed the subject and the object of our research. The subject of research is a system of two ferromagnets with boundary of finite thickness, in which the broken symmetry type inversion. The object of study is a spin wave in the system of two ferromagnets with boundary of finite thickness, in which the broken symmetry type inversion.

The first section describes the experimental observations and theoretical description of the effects of symmetry breaking on the border of two ferromagnets. The second section obtained boundary conditions for the model selected in the case of linear and nonlinear waves. The third section obtained coefficient of reflection and transmission of spin waves, analyzed the results, conclusions based on the results.

In conclusion summarizes inferences of research. The list of references serves sources on which the study was conducted.

 
Lysak A. Passage of spin waves through an individual period of multilayer ferromagnet with complex interfaces | Print |
Written by Paltsun   
Friday, 25 December 2015 22:23

In this paper examines the surface spin waves in the ferromagnet in a magnetic field. The definition of spin waves and magnons were given, and the relevance of its researches was analyzed. Also was considered the Landau-Lifshitz equation and boundary conditions were received. On this basis, we calculated reflection coefficient of the spin waves when passing through the individual period. Were built plots of coefficient of reflectivity of the wave frequency, external magnetic field and the parameters that characterize magnetic properties of the sample and made the analysis.

The above approach helps to better understand the behavior of spin waves as it passes through the interface of the ferromagnet.

Last Updated on Friday, 25 December 2015 22:26
 
Kovalchuk SV, Interaction of spin waves with spin lens with not ideal borders. | Print |
Written by Paltsun   
Monday, 14 December 2015 19:25

In this paper we consider the interaction of spin waves with spin lens with not ideal borders. First of all, was found dispersion law for spin waves, which helped to get the refractive index and the focal distance of the lens. Also derived generalized boundary conditions on which managed to find an expression for the reflection coefficient of spin lens. Were built plots of coefficient of reflectivity of the wave frequency and the magnitude of the external magnetic field at different values ​​of the main parameters.

 

The above approach helps to better understand the behavior of spin waves as it passes through the spin lens, and in general. A consideration of not ideal borders allows to greater precision and to predict some specific situations that are unable to predict the ideal case of the boundary conditions.

Last Updated on Monday, 14 December 2015 19:30
 
Vovk A, methodical complex discipline "Theoretical Physics. Electrodynamics". | Print |
Written by Paltsun   
Sunday, 13 December 2015 20:08

This work examines the main theoretical and methodological foundations professionally directed teaching physics, complex methodological support institutions of higher education, especially the teaching section "Electrodynamics". Also showed described method of thinking students during study courses on a modular technology, prognostic and individual approaches systematization of teaching material, laboratory work and the importance of situation tasks during the study of physics, the use of computer technology in education. Prepared materials for lecture notes, presentations of lectures designed with multimedia content, examples and methods of solving problems made problems for study.

Described initially in combination makes it possible to analyze the problems and defects of teaching, make conclusions and improve the quality of education in universities.

Last Updated on Monday, 14 December 2015 19:29