Exciting breathing modes of magnetic skyrmions using SOT drive

[Payal Bhattacharjee]

Dear all,

Is it possible to excite the breathing modes of the skyrmions using resonant SOT drive? The following code snippet gives translational motion of the skyrmions instead of breathing motion. Can you please point out the error here to excite the breathing modes of skyrmions using SOT drive?

Thank you in advance.

**********

// define constants and set Slonczewski parameters
SOTxi := -2
AlphaH := 0.15
Pol = 0.4
Lambda = 1
Epsilonprime = alphaH*SOTxi/2
Fixedlayer = vector(0,1,0)  //p

// define current
J = vector(0,0, abs(1e11))

With sincere regards,

[Payal Bhattacharjee]

Dear all,

Is it possible to excite the breathing modes of the skyrmions using a resonant SOT drive (AC SOT drive; i.e., a time-varying sinusoidal current in the SOT drive for exciting skyrmion breathing modes)? The following code snippet gives translational motion of the skyrmions instead of breathing modes. Can you please tell me how to excite the breathing modes of skyrmions resonantly using SOT drive? 

Thank you in advance.

**********

// define constants and set Slonczewski parameters
SOTxi := -2
AlphaH := 0.15
Pol = 0.4
Lambda = 1
Epsilonprime = alphaH*SOTxi/2
Fixedlayer = vector(0,1,0)  //p

// define current
J = vector(0,0, abs(1e11))

With sincere regards,