# Adiabatic and nonadiabatic spin torques induced by spin-triplet supercurrent

## TL;DR

This paper investigates how spin-triplet supercurrents induce novel adiabatic and nonadiabatic spin torques in magnetic materials, revealing advantages for domain wall control without extrinsic pinning or oscillations.

## Contribution

It introduces new types of spin torques generated by triplet correlations, enhancing domain wall manipulation capabilities beyond conventional methods.

## Key findings

- Nonadiabatic torque controlled by triplet correlations eliminates threshold current.
- Oscillatory domain wall motions are suppressed at low damping.
- Zero threshold current for domain wall motion without extrinsic pinning.

## Abstract

We study spin transfer torques induced by a spin-triplet supercurrent in a magnet with the superconducting proximity effect. By a perturbative approach, we show that spin-triplet correlations realize new types of torques, which are analogous to the adiabatic and non-adiabatic ($\beta$) torques, without extrinsic spin-flip scattering. Remarkable advantages compared to conventional spin-transfer torques are highlighted in domain wall manipulation. Oscillatory motions of a domain wall do not occur for a small Gilbert damping, and the threshold current density to drive its motion becomes zero in the absence of extrinsic pinning potentials due to the nonadiabatic torque controlled by the triplet correlations.