How to apply spin polarized current for STT induced dynamics calculations?

Question

How to apply spin polarized current for STT induced dynamics calculations?

Opened this issue 6 months ago · 5 comments

Hi,
I'm trying to do a simulation where we try to move the Skyrmions and domain walls with a spin-polarized current via STT. How can I apply a spin-current? I have seen papers where they did the same thing with VAMPIRE, I looked in the manual and also in the workshop examples. I could not find anything.

  Thanks for any assistance!

Answer 1 · 2024-04-18T06:40:08.000Z

I have submit a pr, which can control the electrical strength and shape.

Answer 2 · 2024-04-18T08:22:34.000Z

I have submit a pr, which can control the electrical strength and shape.

Hi, thank you for the response. I looked at your PR and it applies an electric field. What want is a spin polarized electric current.

Answer 3 · 2024-04-18T12:12:28.000Z

I have submit a pr, which can control the electrical strength and shape.

Hi, thank you for the response. I looked at your PR and it applies an electric field. What want is a spin polarized electric current.

yes, the stt is induced by current. So which parameter do you want to change. In VAMPIRE, the stt field is applied by spin-transfer-torque which contents $a_J$ and spin-transfer-torque-polarization-unit-vector

Answer 4 · 2024-04-19T13:14:05.000Z

I have submit a pr, which can control the electrical strength and shape.

Hi, thank you for the response. I looked at your PR and it applies an electric field. What want is a spin polarized electric current.

yes, the stt is induced by current. So which parameter do you want to change. In VAMPIRE, the stt field is applied by spin-transfer-torque which contents aJ and spin-transfer-torque-polarization-unit-vector

Thank you, can you please share an example simulation if you have one? Because I could not find the options for spin-transfer-torque in the Vampire tutorial.

Answer 5 · 2024-04-20T14:50:16.000Z

I have submit a pr, which can control the electrical strength and shape.

Hi, thank you for the response. I looked at your PR and it applies an electric field. What want is a spin polarized electric current.

yes, the stt is induced by current. So which parameter do you want to change. In VAMPIRE, the stt field is applied by spin-transfer-torque which contents aJ and spin-transfer-torque-polarization-unit-vector

Thank you, can you please share an example simulation if you have one? Because I could not find the options for spin-transfer-torque in the Vampire tutorial.

you can git clone and switch to develop branch，use ripgrep to grep this flag if you have