论文标题
Moiré扭曲的双层石墨烯的奇怪金属性
Strange metallicity of moiré twisted bilayer graphene
论文作者
论文摘要
在几个不同实验室中的最新测量结果报告了莫伊尔扭曲的双层石墨烯（TBLG）中的巨大扭曲 - 角度依赖性斜率（或温度系数）的观察，有时甚至较低。在本说明中，从理论上讲，从声音声子电阻散射的角度，我们从理论上讨论了这种“奇怪的金属”线性传输行为，强调了传输数据的各个方面，这些方面与声子散射机制不一致。与新实验进行了广泛的理论比较[A. Jaoui等人，自然物理学18，633（2022）]是这项工作的主要新方面。
Recent measurements in several different laboratories report the observation of an approximately linear-in-temperature resistivity with a large twist-angle-dependent slope (or temperature coefficient) in moiré twisted bilayer graphene (tBLG) down to a few K and sometimes to much lower temperatures. In this note, we theoretically discuss this `strange metal' linear-in-temperature transport behavior from the perspective of resistive scattering by acoustic phonons, emphasizing the aspects of the transport data, which are and which are not consistent with the phonon scattering mechanism. Extensive theoretical comparison with a new experiment [A. Jaoui et al., Nature Physics 18, 633 (2022)] is the central new aspect of this work.
