论文标题
在倾斜磁化薄膜中非常规横向自旋的电气检测
Electrical detection of unconventional transverse spin-currents in obliquely magnetized thin films
论文作者
论文摘要
在镁化学的典型实验中，薄膜被磁性磁性化，自旋波仅沿其空间传播方向携带角动量。 Bozhko等人的实验动机。 [物理。 Rev. Research 2，023324（2020）]，从理论上讲，对于倾斜磁化薄膜，交换 - 二色旋转波伴随着横向自旋流动。我们提出了一个实验，通过比较与相反的动量的旋转波的诱导自旋 - 电流通过比较YIG膜上的PT条将这种横向自旋电流电气。我们预测，对于倾斜至少$ 30^{\ circ} $的磁场，相对差异为$ 10^{-4} $。这种横向自旋 - 旋转是远程偶极 - 偶极相互作用和界面的反转对称性破裂的结果。
In a typical experiment in magnonics, thin films are magnetized in-plane and spin waves only carry angular momentum along their spatial propagation direction. Motivated by the experiments of Bozhko et al. [Phys. Rev. Research 2, 023324 (2020)], we show theoretically that for obliquely magnetized thin films, exchange-dipolar spin waves are accompanied by a transverse spin-current. We propose an experiment to electrically detect this transverse spin-current with Pt strips on top of a YIG film, by comparing the induced spin-current for spin waves with opposite momenta. We predict the relative difference to be of the order $10^{-4}$, for magnetic fields tilted at least $30^{\circ}$ out of plane. This transverse spin-current is the result of the long range dipole-dipole interaction and the inversion symmetry breaking of the interface.
