通过反应固相外延法制备的Eu$_2$Ir$_2$O$_7$ (111)薄膜中的弱反局域化与局域化
Weak antilocalization and localization in Eu$_2$Ir$_2$O$_7$ (111) thin films by reactive solid phase epitaxy
AI总结：
本文利用脉冲激光沉积和反应固相外延法制备了Eu$_2$Ir$_2$O$_7$(111)薄膜，发现其在105K以下表现出被磁性掩盖的Weyl半金属态弱反局域化特征，且多体相互作用在低温下增强并最终在2K驱动向弱局域化的转变。
摘要：
沿[111]方向的烧绿石铱酸盐薄膜在研究奇异关联拓扑现象方面引起了广泛关注。本文利用脉冲激光沉积技术，通过反应固相外延法制备了Eu$_2$Ir$_2$O$_7$薄膜。我们主要关注薄膜在105 K磁相变温度以下的输运性质。对电阻率的温度和磁场依赖性分析揭示了弱反局域化的存在，这是被磁性“掩盖”的Weyl半金属态的典型特征。此外，值得注意的是，Eu$_2$Ir$_2$O$_7$薄膜中多体相互作用的贡献在较低温度下增强，与弱反局域化效应相互竞争，并最终在2 K时驱动了向弱局域化的转变。
英文摘要：
Thin films of the pyrochlore iridates along the [111] direction have drawn significant attention to investigate exotic correlated topological phenomena. Here, we report the fabrication of Eu$_2$Ir$_2$O$_7$ thin films via reactive solid phase epitaxy using the pulsed laser deposition technique. We mainly focus on the transport properties of the films below the magnetic phase transition at 105 K. Analyses on the temperature and the field dependences of resistivity unveil the presence of weak antilocalization, a characteristic signature of the Weyl semimetallic state that has been "buried" by magnetism. Moreover, it is noteworthy that the contribution from many-body interactions in Eu2Ir2O7 thin films is enhanced at lower temperatures and competes with the weak antilocalization effect, and eventually drives the crossover to weak localization at 2 K.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
