论文标题
观察2D铁磁CR2X2TE6中三重点上增强的自旋旋转相关性(x = si,ge)
Observation of enhanced spin-spin correlations at triple point in 2D ferromagnetic Cr2X2Te6 (X=Si, Ge)
论文作者
论文摘要
2D铁磁体CR2X2TE6(X = SI,GE)的域动力学和自旋旋转相关性通过复合磁电方法研究。平面内和平面磁场的磁场温度相图均在TC和1 KOE周围揭示了三重点,其中铁磁,顺磁性和自旋极化相交。磁电信号在相边界处显示峰值特征,并在三重点处达到最大值,这表明此时自旋旋转相关性的显着增强。两个系统之间的比较表明,CR2SI2TE6中的自旋旋转相关性比CR2GE2TE6中的旋转相关性强。
The domain dynamics and spin-spin correlation of 2D ferromagnets Cr2X2Te6 (X=Si, Ge) are investigated by a composite magnetoelectric method. The magnetic field-temperature phase diagrams for both in-plane and out-of-plane magnetic fields disclose a triple point around TC and 1 kOe, where ferromagnetic, paramagnetic, and spin-polarized phases coexist. The magnetoelectric signal shows peak features at the phase boundaries and reaches the maximum at the triple point, suggesting significant enhancement of spin-spin correlations at this point. A comparison between two systems reveals that the spin-spin correlations in Cr2Si2Te6 are stronger than that in Cr2Ge2Te6.