Probing the quantum many-body states of low-dimensional metals by angular resolved photoelectron spectroscopy

关联电子的量子多体问题是凝聚态物理的前沿课题，在金属和超导体的研究中占据主导地位。基于钌和铑离子的层状4d过渡金属氧化物（TMO）是研究这个问题的特别有吸引力的系统，因为它们可以以无与伦比的纯度生长，并表现出丰富的微妙的量子多体状态。本文提出用角分辨光电子能谱（ARPES）研究这种态。这将提供新的见解基本问题的物理学的4D TMO，并可能揭示各种不了解的阶段在铜酸盐和锰氧化物。

The quantum many-body problem of correlated electrons is a frontier topic in condensed matter physics and dominates the study of metals and superconductors. Layered 4d transition metal oxides (TMOs) based on ruthenium and rhodium ions are particularly attractive systems to study this problem because they can be grown with unrivaled purity and exhibit a wealth of subtle quantum many-body states. It is proposed to investigate such states by angular resolved photoemission (ARPES). This will provide new insight into fundamental questions underlying the physics of 4d TMOs and may shed light on a variety of poorly understood phases in cuprates and manganites.