论文标题
Delafossites中的Bloch-Lorentz磁静脉振荡
Bloch-Lorentz magnetoresistance oscillations in delafossites
论文作者
论文摘要
Delafossites（PDCOO $ _2 $和PTCOO $ _2 $）的平面外磁力的最新测量值观察到振荡与Aharonov-Bohm效应非常相似。在这里，我们表明，磁磁性振荡是通过平面外电子轨迹的Bloch样振荡来解释的。我们开发了这些Bloch-Lorentz振荡的半经典理论，并表明它们是Delafossites的弹道运动和准2D分散的结果。我们的模型将样品壁散射确定为最有可能的因素，限制了这些Bloch-Lorentz在现有实验中的可见性。
Recent measurements of the out-of-plane magnetoresistance of delafossites (PdCoO$_2$ and PtCoO$_2$) observed oscillations closely resembling the Aharonov-Bohm effect. Here, we show that the magnetoresistance oscillations are explained by the Bloch-like oscillations of the out-of-plane electron trajectories. We develop a semiclassical theory of these Bloch-Lorentz oscillations and show that they are a consequence of the ballistic motion and quasi-2D dispersion of delafossites. Our model identifies the sample wall scattering to be the most likely factor limiting the visibility of these Bloch-Lorentz oscillations in existing experiments.
