论文标题
Moiré哈伯德模型中的可调条纹顺序和弱超导性弱
Tunable Stripe Order and Weak Superconductivity in the Moiré Hubbard Model
论文作者
论文摘要
MoiréHubbard模型描述了某些同型扭曲过渡金属二分法中的相关性。使用精确的对角和密度基质重新归一化的方法，我们发现磁性莫特绝缘和金属相，在掺杂时，它们在掺杂的电荷和自旋顺序上，在某些方向上是孔的成对结合。通过层间电势差，这些相可高度调节。值得注意的是，发现孔结合能是高度可调的，它揭示了一个实验可访问的机制，孔变得有吸引力。在这个有吸引力的制度中，我们研究了超导相关功能，并指出了弱超导性的可能性。
The moiré Hubbard model describes correlations in certain homobilayer twisted transition metal dichalcogenides. Using exact diagonalization and density matrix renormalization group methods, we find magnetic Mott insulating and metallic phases, which, upon doping exhibit intertwined charge and spin ordering and, in some regimes, pair binding of holes. The phases are highly tunable via an interlayer potential difference. Remarkably, the hole binding energy is found to be highly tunable revealing an experimentally accessible regime where holes become attractive. In this attractive regime, we study the superconducting correlation function and point out the possibility of weak superconductivity.
