Spin, charge and lattice correlations in Correlated Electron Systems

非传统超导体和其他量子材料从自旋、电荷和晶格的集体激发之间的相互作用中收集到它们独特的性质。这个项目是用散射技术来研究这些激发和关联。集体激发传统上是用中子散射和非共振x射线散射来研究的。然而，共振非弹性X射线能谱(RIXS)是一种新的、非常强大的工具，它可以探测自旋激发、电荷激发、声子及其相互耦合。在这个项目中，我们将使用钻石的最先进的(共振非弹性x射线光谱分析)RIXS i21设备，以及其他中子和x射线设备来研究新颖的和热门的量子材料，例如铜酸盐超导体La2-xSrxCuO4，YBa2Cu3O6+x，Bi2Sr2-xLaxCuO6+x和相关的电子系统，如金红酸盐和镍酸盐。其目的是确定上述激发与这些体系的物理性质之间的关系，并通过与理论的定量比较，将RIXS发展为一种新型电子材料的探测器。

Unconventional superconductors and other quantum materials glean their unique properties from the interplay between the collective excitation of spin, charge and the crystal lattice. This project is to study these excitations and correlations using scattering techniques. Collective excitations have traditionally been studied using neutrons scattering and non-resonant x-ray scattering. However, resonant inelastic x-ray spectroscopy (RIXS) is a new and extraordinarily powerful tool which can probe spin excitations, charge excitations, phonons, and their mutual coupling. In this project we will use the state of-the-art (resonant inelastic x-ray spectroscopy) RIXS i21 facility at Diamond, together with other neutron and x-ray facilities to investigate novel and topical quantum materials such as the cuprate superconductors La2-xSrxCuO4, YBa2Cu3O6+x, Bi2Sr2-xLaxCuO6+x and correlated electron systems such as ruthenates and nickelates. The aim is to determine how the excitations mentioned above are related to the physical properties of these systems and to develop the RIXS as a probe of novel electronic materials by making quantitative comparisons with theory.