论文标题
稀土离子在多晶ERFE1-XCRXO3位置的特殊自旋行为(x = 0.1,0.9)
Special spin behavior of rare earth ions at the A site of polycrystalline ErFe1-xCrxO3 (x = 0.1, 0.9)
论文作者
论文摘要
热诱导的自旋控制是将来自旋设备的主要方向之一。在这项研究中,我们合成了单相多晶ERFE1-XCRXO3,并将磁化曲线和Mössbauer光谱组合在一起,以在室温下确定宏观磁性。分子场理论很好地模拟了系统在各种温度下的磁化。并且发现在DM相互作用下,不仅B点离子经历了重新定向过程,而且A位置离子的旋转也同时改变。有效自旋定义为Fe3+/Cr3+自旋平面上ER3+的投影,整个重新定向过程是通过拟合获得的。这项研究将补充ERFE1-XCRXO3自旋重新定位的实际过程,并将为制造未来的自旋控制设备奠定理论基础。
Thermally induced spin control is one of the main directions for future spin devices. In this study, we synthesized single-phase polycrystalline ErFe1-xCrxO3 and combined the magnetization curves and Mössbauer spectra to determine the macroscopic magnetism at room temperature. The magnetization of the system at various temperatures is well simulated by molecular field theory. And it is found that under the DM interaction, not only the B-site ions undergo a reorientation process, but the spins of the A-site ions also change at the same time. The effective spin is defined as the projection of Er3+ on the Fe3+/Cr3+ spin plane, and the whole reorientation process is obtained by fitting. This study will complement the actual process of ErFe1-xCrxO3 spin reorientation and will lay a theoretical foundation for the fabrication of future spin-controlled devices.