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 nonadiabatic ($\beta$) 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.

中文翻译：

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三重旋流超电流引起的绝热和非绝热自旋转矩

我们研究了自旋三重态超电流在磁体中具有超导邻近效应引起的自旋传递转矩。通过摄动方法，我们表明自旋三重态相关实现了新型的扭矩，类似于绝热和非绝热（$\beta$）扭矩，而无外部自旋翻转散射。与传统的自旋转移矩相比，显着的优势在畴壁操纵中得到了强调。对于较小的吉尔伯特阻尼，不会发生畴壁的振荡运动，并且由于三重态相关性控制的非绝热转矩，在没有外部钉扎电势的情况下，驱动其运动的阈值电流密度变为零。