论文标题
MUSR光谱研究调查的Pyrochlore Iridate的自旋动力学ER2IR2O7
Spin dynamics in the pyrochlore iridate, Er2Ir2O7, investigated by muSR spectroscopy
论文作者
论文摘要
在稀土pyrochlore iridates A2IR2O7中，充分了解复杂的磁性是凝结物理学的持续问题。与5D IR4+离子的强旋转轨道耦合有关的两个互动和相互作用的沮丧的磁性pyrochlore sublattices的可能性使其与一系列潜在的电子和磁状态相关。在本文中，我们介绍了ER2IR2O7的纵向场和零场的测量值。 ER2IR2O7的MUSR响应由ER3+（J = 15/2）矩的强烈波动磁场主导，在t = 15 K处显示拟合的松弛率为λ_2的峰值。 MUSR光谱显示IR过渡的弱特征，这些特征在应用的纵向场中很容易被抑制，但是即使在高达3 kg的应用场中，也无法实现局部磁场的um虫的完全脱钩。
Building a full understanding of the complex magnetism in the rare-earth pyrochlore iridates, A2Ir2O7, is an ongoing issue in condensed matter physics. The possibility of two interpenetrating and interacting frustrated magnetic pyrochlore sublattices, connected with the strong spin-orbit coupling of the 5d Ir4+ ion, lends itself to a wide array of potential electronic and magnetic states. In this paper, we present longitudinal field and zero field muSR measurements of Er2Ir2O7. The muSR response of Er2Ir2O7 is dominated by the strong fluctuating fields of the Er3+ (J = 15/2) moments, showing a peak in fitted relaxation rate, λ_2, at T = 15 K . The muSR spectra show just weak signatures of the Ir transition, that were easily suppressed in applied longitudinal field, however full decoupling of the muons from local magnetic fields was not achieved even in applied fields up to 3 kG.
