论文标题
近托绝缘子中的回旋共振
Cyclotron resonance in Kondo insulator
论文作者
论文摘要
通过最近对近期绝缘子中量子振荡的实验观察，SMB $ _6 $和ybb $ _ {12} $的实验性振荡，我们研究了近孔绝缘子的磁光电导率。我们表明，由于系统的特征性Landau级别结构，在杂交间隙以下的频域中存在非平凡的回旋共振峰。此外，这些低能峰在由施加的磁场驱动的绝缘体 - 金属相跃迁附近增强，即使在低温下也稳定。它们通过近核效应平稳地连接到共振峰，以进行无脊椎动物传导和高温下的$ f $ - 电子。非平凡的回旋子共振是静态量量子振荡的动力学对应物，通过这种紧密的连接，它将为后者提供有用的见解。
Motivated by the recent experimental observations of quantum oscillations in the Kondo insulators SmB$_6$ and YbB$_{12}$, we study magneto-optical conductivity of Kondo insulators. We show that there exist non-trivial cyclotron resonance peaks in a frequency domain below the hybridization gap as a result of the characteristic Landau level structure of the system. Furthermore, these low energy peaks are enhanced near the insulator-metal phase transition driven by an applied magnetic field and stable even at low temperatures. They are smoothly connected via Kondo effect to resonance peaks for unhybridized conduction and $f$-electrons at high temperature. The non-trivial cyclotron resonance is a dynamical counterpart of quantum oscillations in static quantities, and through this intimate connection it will provide a useful insight for the latter.
