论文标题
量子限制诱导的金属 - 绝缘子过渡，以srvo $ _3 $ supermlattice的强相关量子井中
Quantum Confinement Induced Metal-Insulator Transition in Strongly Correlated Quantum Wells of SrVO$_3$ Superlattice
论文作者
论文摘要
动态平均场理论（DMFT）已与密度功能理论（DFT+DMFT）结合使用，以研究由于量子限制而引起的密切相关的$ 3D $电子的金属 - 绝缘体跃迁（MIT）。我们对麻省理工学院的显微镜机制进行了新的启示，并以前报道了异常的子带质量增强，这两者都是由于srvo $ _3 $层中V $ xz（Yz）$ state的量化的直接结果而产生的。因此，我们表明量子限制可以敏感地调整电子相关性的强度，从而导致将这种方法应用于其他相关材料的道路。
Dynamical mean-field theory (DMFT) has been employed in conjunction with density functional theory (DFT+DMFT) to investigate the metal-insulator transition (MIT) of strongly correlated $3d$ electrons due to quantum confinement. We shed new light on the microscopic mechanism of the MIT and previously reported anomalous subband mass enhancement, both of which arise as a direct consequence of the quantization of V $xz(yz)$ states in the SrVO$_3$ layers. We therefore show that quantum confinement can sensitively tune the strength of electron correlations, leading the way to applying such approaches in other correlated materials.
