论文标题
手性记忆存储在MNP的铁磁状态下的磁性域壁
Chirality memory stored in magnetic domain walls in the ferromagnetic state of MnP
论文作者
论文摘要
呼吸磁结构中的手性取决于磁矩旋转感。我们发现，即使在Helimagnet MNP中，手性信息也不会消失。第二种谐波电阻率$ρ^{\ rm 2f} $，反映了镜像对称的分解，在加热了铁磁过渡温度上方的样品并将其冷却回到helimagnetic状态后，发现几乎没有变化。在铁磁状态中沿易于轴的磁场施加了手性诱导的$ρ^{\ rm 2f} $。这表明手性记忆效应起源于铁磁域壁。
Chirality in a helimagnetic structure is determined by the sense of magnetic moment rotation. We found that the chiral information did not disappear even after the phase transition to the high-temperature ferromagnetic phase in a helimagnet MnP. The 2nd harmonic resistivity $ρ^{\rm 2f}$, which reflects the breaking down of mirror symmetry, was found to be almost unchanged after heating the sample above the ferromagnetic transition temperature and cooling it back to the helimagnetic state. The application of a magnetic field along the easy axis in the ferromagnetic state quenched the chirality-induced $ρ^{\rm 2f}$. This indicates that the chirality memory effect originated from the ferromagnetic domain walls.
