论文标题
从基本属性到相关的Delafossites的莫特设计
From basic properties to the Mott design of correlated delafossites
论文作者
论文摘要
Delafossites实现的自然盐结构概念突出了这些分层的氧化物。虽然金属，带或莫特的特征可能与单个层有关，但层间耦合仍然起着决定性的作用。我们回顾了PDCOO $ _2 $，PDCRO $ _2 $和AGCRO $ _2 $的相关电子结构，这表明与相互作用系统的标准分类相关。这一发现为材料设计的可能性开辟了一个微妙的莫特至关重要制度。在Mott背景下操纵的隐藏物理物理学，相关诱导的半金属性或Dirac/Flat-Band分散剂是新兴的特征。在实验制备中的成就中，这揭示了相关材料领域令人兴奋的研究领域。
The natural-heterostructure concept realized in delafossites highlights these layered oxides. While metallic, band- or Mott-insulating character may be associated with individual layers, inter-layer coupling still plays a decisive role. We review the correlated electronic structure of PdCoO$_2$, PdCrO$_2$ and AgCrO$_2$, showing that layer-entangled electronic states can deviate from standard classifications of interacting systems. This finding opens up possibilities for materials design in a subtle Mott-critical regime. Manipulated Hidden-Mott physics, correlation-induced semimetallicity, or Dirac/flat-band dispersions in a Mott background are emerging features. Together with achievements in the experimental preparation, this inaugurates an exciting research field in the arena of correlated materials.
