File name (click to download) PDF files are screenshots of the respective MathCAD worksheets

Description

MSSW_delay_line.xmcdz

MSSW_delay_line.pdf

This MathCAD worksheet calculates characteristics of excitation and reception of Damon-Eshbach spin waves in thin ferromagnetic films by microscopic coplanar stripline antennas. This numerical model is based on the theory in C.S.Chang et al., Appl. Phys. Lett. 104, 032408 (2014).

in_plane_FMR_response_exchange-coupled_bilayer_metal_film_1.xmcdz

in_plane_FMR_response_exchange-coupled_bilayer_metal_film_1.pdf

This MathCAD worksheet simulates the broadband stripline ferromagnetic resonance response of metallic ferromagnetic films. S21 and S11 parameters and a number of characteristics of a stripline loaded by a ferromagnetic film are calculated. The code assumes that the external static magnetic field is applied in the film plane. The film is an exchange-coupled bilayer. A single-layer film can be also simulated with this code. This numerical model is based on the theory in M. Kostylev, J. Appl. Phys. 106, 043903 (2009). The works K. Kennewell et al., J. Appl. Phys. 108, 073917 (2010) and M. Kostylev, J. Appl. Phys.  108, 103914 (2010) report on experimental verification of this theory.

Out-of_plane_FMR_response_single_layer_metal_film.xmcdz

Out-of_plane_FMR_response_single_layer_metal_film.pdf

This MathCAD worksheet simulates the broadband stripline ferromagnetic resonance response of metallic ferromagnetic films. S21 and S11 parameters and a number of characteristics of a stripline loaded by a ferromagnetic film are calculated. The code assumes that the external static magnetic field is applied out of plane of the film. The film is a single layer. This numerical model is extension of the theory in M. Kostylev, J. Appl. Phys. 106, 043903 (2009). 

Transmission of electromagnetic wave through a ferromagnetic bi-layer film.xmcdz

Transmission of electromagnetic wave through a ferromagnetic bi-layer film.pdf

This is a MathCAD worksheet. Transmission of a plane electromagnetic wave through a bi-layer ferromagnetic film is simulated. The applied field is in the film plane. The wave is incident normally onto the film surface. Areas in front and behind the film are vacuum. Single-layer film can be also simulated. This numerical model is based on the theory in M. Kostylev, J. Appl. Phys. 112, 093901 (2012). The work M. Kostylev, J. Appl. Phys. 113, 053908 (2013). reports on experimental validation of this theory.

FVMSW_excitation by a coplanar transducer.xmcdz

FVMSW_excitation by a coplanar transducer.pdf 

This worksheet calculates the field of dynamic magnetisation of the forward volume magnetostatic spin wave (FVMSW) driven by a microscopic coplanar antenna. The static magentic field is perpendicular to the plane of a continous ferromagnetic film. This numerical model is based on the theory in C.S. Chang et al., Appl. Phys. Lett. 104, 032408 (2014).

DE_wave dispersion_exchange-coupled_bilayer.xmcdz

DE_wave dispersion_exchange-coupled_bilayer.pdf 

This is a MathCAD worksheet. Dispersion of the dipole-exchange Damon-Eshbach spin wave in an exchange-coupled bi-layer ferromagnetic film is simulated. Single-layer film can be also simulated. The code is based on the theory in M. Kostylev, J. Appl. Phys. 113, 053907 (2013). The works M.Haidar, M.Bailleul, M.Kostylev and Y.Lao, Phys. Rev. B (2014) and M. Kostylev et al. J. Appl. Phys. 108, 103914 (2010) report on experimental verification of this theory.

microstrip line - quasi-static approximation.xmcdz

microstrip line - quasi-static approximation.pdf 

This MathCAD solves the Laplace equation for the geometry of the microstrip line and calculates its electric field in the electrostatic approximation.

microwave field of a microstrip line by Silvester.xmcdz

microwave field of a microstrip line by Silvester.pdf 

This MathCAD worksheet calculates cross-sectional distributions of BOTH microwave magnetic and electric fields of a microstrip line. It is based on P. Silvester, Proc. IEEE 115, 43 (1968).

nanowire modes.xmcdz

nanowire modes.pdf 

This MathCAD worksheet calculates frequencies of standing spin wave resonances across the width of a magnetic nanostripe of a very large length. The cross-section of the stripe is rectangular and has a small aspect ratio. Both dynamics of an array of parallel dipole-coupled stripes and of individual (uncoupled) stripes can be simulated.  This software is based on the theories in Kostylev et al., Phys. Rev. B 69, 064408 (2004) and Guslienko et al., Phys. Rev. B 66, 132402 (2002).