The physics of quantum materials is dictated by many-body interactions and mathematical
concepts such as symmetry and topology that have transformed our understanding of matter …

X-ray techniques have been used for more than a century to study the atomic and electronic
structure in practically any type of material. The advent of correlated electron systems, in …

The concept of a charge density wave (CDW) permeates much of condensed matter physics
and chemistry. CDWs have their origin rooted in the instability of a one-dimensional system …

The electronic phase diagrams of many highly correlated systems, and, in particular, the
cuprate high temperature superconductors, are complex, with many different phases …

An overview of both experimental and theoretical results in the field of resonant scattering of
tunable soft and hard x-ray radiation is presented, with a main focus on the closely related …

We report the results of a comprehensive study of charge-density wave (CDW) correlations
in untwinned YBa 2 Cu 3 O 6+ x single crystals with 0.4≤ x≤ 0.99 using Cu L 3 edge …

The electron–phonon interaction is a major factor influencing the competition between
collective instabilities in correlated-electron materials, but its role in driving high-temperature …

We report hard (14 keV) x-ray diffraction measurements on three compositions (x= 0.11,
0.12, 0.13) of the high-temperature superconductor La 2− x Sr x CuO 4. All samples show …

Understanding the electron pairing in hole-doped cuprate superconductors has been a
challenge, in particular because the “normal” state from which it evolves is unprecedented …

High-temperature superconductivity, with transition temperatures up to≈ 134 K at ambient
pressure, occurs in layered cuprate compounds. The conducting CuO2 planes, which are …