物理学报2024，Vol.73Issue(19)：215-232,18.DOI:10.7498/aps.73.20240983
铜氧超导材料电荷密度波和元激发的共振非弹性X射线散射研究
Resonant inelastic X-ray scattering study of charge density waves and elementary excitations in cuprate superconductors
摘要
Abstract
In the 38 years since the discovery of cuprate superconductors,the theoretical mechanism of high-temperature superconductivity remains unresolved.Recent experimental progress has focused on exploring microscopic mechanisms by using novel characterization techniques.The development of synchrotron radiation has driven significant progress in spectroscopic methods.Resonant inelastic X-ray scattering(RIXS),based on synchrotron radiation,has been widely used to study cuprate superconductors due to its ability to perform bulk measurements,provide energy-momentum resolution,and directly probe various elemental excitations.The RIXS can measure phonons,which bind Cooper pairs in the BCS theory,and magnetic fluctuations and competing orders predicted by the Hubbard model in strongly correlated systems,allowing for the study of their interrelationships.This paper reviews the progress in using RIXS to measure charge density waves and related low-energy excitations,including phonon anomalies,in cuprate superconductors.It also examines the relationship between magnetic excitation and the highest superconducting transition temperature,and provides prospects for future research directions and challenges.关键词
共振非弹性X射线散射/铜氧超导/电荷密度波/声子/磁激发Key words
resonant inelastic X-ray scattering/cuprate superconductor/charge density wave/phonon/magnetic excitation引用本文复制引用
李齐治,张世龙,彭莹莹..铜氧超导材料电荷密度波和元激发的共振非弹性X射线散射研究[J].物理学报,2024,73(19):215-232,18.基金项目
国家自然科学基金(批准号:11974029,1237414)、科技部重点研发计划(批准号:2019YFA0308401,2021YFA1401903)和北京市自然科学基金(批准号:JQ24001)资助的课题. Project supported by the National Natural Science Foundation of China(Grant Nos.11974029,1237414),the Key Research and Development Program of Ministry of Science and Technology of China(Grant Nos.2019YFA0308401,2021YFA1401903),and the Natural Science Foundation of Beijing,China(Grant No.JQ24001). （批准号:11974029,1237414）
