论文标题
阐明NDFE1-XCRXO3中热诱导的自旋重新定向的性质
Unraveling the nature of thermally induced spin reorientation in NdFe1-xCrxO3
论文作者
论文摘要
了解自旋控制机制是凝结物理学的重要组成部分，也是设计自旋设备的理论基础。在这封信中，基于四个公共分子场理论，我们提出了基本的NDFE1-XCRXO3磁性机制是由对温度敏感的自旋重新定向驱动的。在给定温度下ND3+和CR3+/Fe3+矩之间的实际耦合角动量，通过ND3+磁矩投影在CR3+/Fe3+平面上实现。随着温度的增加，ND3+的力矩与CR3+/Fe3+的力矩之间的角度会单调降低。在这项工作中，提出了NDFE1-XCRXO3（x = 0.1，0.9）的磁性机制，A/B角度和温度之间的密切关系为新的多功能磁性材料设计奠定了理论基础。
Understanding spin control mechanisms is an important part of condensed matter physics and the theoretical basis for designing spintronic devices. In this letter, based on four-sublattices molecular field theory, we propose that the underlying NdFe1-xCrxO3 magnetic mechanism is driven by spin reorientation sensitive to temperature. The actual coupling angular momentum, angle between the Nd3+ and Cr3+/Fe3+ moments at the given temperature is realized via the Nd3+ magnetic moment projection onto the Cr3+/Fe3+ plane. As the temperature increases, the angle between the moment of Nd3+ and the moment of Cr3+/Fe3+ decreases monotonically. In this work, the magnetic mechanism of NdFe1-xCrxO3 (x=0.1, 0.9), the close relationship between A/B angle and temperature are presented, which laid a theoretical foundation for the design of new multifunctional magnetic materials.
