D. Osuna Ruiz

6 Questions 3 Answers 0 Followers

Questions related from D. Osuna Ruiz

How to analyze the pinning of magnetic moments close to the surfaces?

Hello all, I am trying to analyze the differences of stiffness of magnetic moments in the bulk of a thick permalloy disk against the moments on the surface, when they are excited with an ac...

27 July 2018 684 3 View

Excited spin wave mode not being visualized in time domain?

Hi all, I am plotting spin wave spectra from magnetic nanodisks in the vortex state through mumax and I can see some modes are excited at high frequencies (>10 GHz). According to the frequency...

26 January 2018 7,213 0 View

Spatial FFT to show the wavelengths of spin waves?

Hi all, I am simulating the spin wave modes in a square of permalloy of 900 nm side. I am trying to plot the k-vector picture of it, using the fft2 function in matlab, which returns the 2D spatial...

06 June 2017 8,928 1 View

Which literature would you recommend to look for the relationship between Kittel's formula and different shapes?

Hi all, Besides of original Charles Kittel paper, I was wondering which papers or books show more relations between different shapes of ferromagnetic particles and the Ferromagnetic resonance...

25 January 2017 6,686 0 View

Effects of magnetostatic fields on coplanar waveguides?

Hi all, I am taking some measurements of magnetic samples in magnetostatic fields. To do so, I place them on a coplanar waveguide, but when the external field increases, so does the S21 of the...

06 December 2016 650 5 View

Why do I get another resonance (?) at low frequencies measuring the Ferromagnetic resonance?

Hi fellows, I hope you could help me out with this, because it is becoming very annoying when taking my measurements. I am using a VNA to measure the S12 of a ferromagnetic sample, very...

28 October 2016 4,411 1 View