论文标题
电子掺杂的库层超导体中的Arpes自相关
ARPES autocorrelation in electron-doped cuprate superconductors
论文作者
论文摘要
基于动力学能驱动的超导能（SC）机制，研究了掺杂电子库酸酯超导体中的角度分辨光发射光谱（ARPES）自相关。结果表明，强电子相关性诱导电子表面（EFS）重建，其中大部分的准粒子位于EFS上的热点周围，然后将这些热点通过散射波量$ {\ bf q} _} _ {i} $构建{\ it is actet scterting satterg sattering sattering sattering sattering sattering sattering sattering sattering satergy sattering sattering sattering saterging ascting。在与孔掺杂的情况下的惊人类比中，尖锐的ARPES自相关峰直接与散射波向量$ {\ bf Q} _ {I} $相关，并且在动量空间中具有微弱的分散性。但是，与孔掺杂的对应物形成鲜明对比，随着掺杂的增加，ARPES自相关峰的位置向相反的方向移动。该理论还表明，在电子掺杂的库层超导体中，ARPES自相关与准粒子散射干扰（QSI）之间存在固有的联系。
The angle-resolved photoemission spectroscopy (ARPES) autocorrelation in the electron-doped cuprate superconductors is studied based on the kinetic-energy driven superconducting (SC) mechanism. It is shown that the strong electron correlation induces the electron Fermi surface (EFS) reconstruction, where the most of the quasiparticles locate at around the hot spots on EFS, and then these hot spots connected by the scattering wave vectors ${\bf q}_{i}$ construct an {\it octet} scattering model. In a striking analogy to the hole-doped case, the sharp ARPES autocorrelation peaks are directly correlated with the scattering wave vectors ${\bf q}_{i}$, and are weakly dispersive in momentum space. However, in a clear contrast to the hole-doped counterparts, the position of the ARPES autocorrelation peaks move toward to the opposite direction with the increase of doping. The theory also indicates that there is an intrinsic connection between the ARPES autocorrelation and quasiparticle scattering interference (QSI) in the electron-doped cuprate superconductors.
