论文标题
横向PEIERLS过渡
Transverse Peierls Transition
论文作者
论文摘要
在本文中，我们讨论了一种新型的自发对称性断裂阶段，这是由于横向声音子模式通过电子声子耦合而导致的。这些新阶段包括剪切密度波和自隔波，这些波浪分别由线性和循环极化的声音声子的软化引起。我们建议在量子限制中的两个拓扑半学系统，其中电子仅在外部磁场下占据最低的Landau带，将是实现这些新阶段的理想系统。这些新阶段将诱导外来的物理效应，包括3D量子霍尔效应，手性静电波，磁性声音效应和手性声子校正到Einstein-De Hass效应。
In the present paper, we have discussed a new type of spontaneous symmetry breaking phases caused by the softening of the transverse acoustic phonon modes through the electron phonon coupling. These new phases include the shear density wave and self-twisting wave, which are caused by the softening of linearly and circularly polarized acoustic phonon modes, respectively. We propose that two of the topological semimetal systems in the quantum limit, where the electrons only occupy the lowest Landau bands under external magnetic field, will be the perfect systems to realize these new phases. Exotic physical effects will be induced in these new phases, including the 3D quantum Hall effect, chiral standing acoustic wave, magneto-acoustic effects and chiral phonon correction to Einstein-de Hass effect.
