论文标题
在无兴奋剂的强相关带中，非常规超导性
Unconventional superconductivity in a strongly correlated band-insulator without doping
论文作者
论文摘要
我们提出了一种新的途径，用于在不掺杂的情况下达到密切相关的系统中获得非常规超导性（SC）。在一个简单的相关带绝缘子（BI）的简单模型中，我们基于投影波函数方法的概括来证明，当系统相互作用和裸露的带隙都比动能能量大得多，只要系统具有足够的挫败感，SC就会出现。随着相互作用的调整，SC似乎夹在相关的BI之间，然后在一侧是顺磁金属，另一侧的铁磁性金属，抗铁磁（AF）半米和AF Mott Mott绝缘子阶段。
We present a novel route for attaining unconventional superconductivity (SC) in a strongly correlated system without doping. In a simple model of a correlated band insulator (BI) at half-filling we demonstrate, based on a generalization of the projected wavefunctions method, that SC emerges when e-e interactions and the bare band-gap are both much larger than the kinetic energy, provided the system has sufficient frustration against the magnetic order. As the interactions are tuned, SC appears sandwiched between the correlated BI followed by a paramagnetic metal on one side, and a ferrimagnetic metal, antiferromagnetic (AF) half-metal, and AF Mott insulator phases on the other side.
