The discovery of high-temperature superconductivity in the copper oxides in 1986 triggered
a huge amount of innovative scientific inquiry. In the almost three decades since, much has …

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

Nonlinear optical excitation of infrared active lattice vibrations has been shown to melt
magnetic or orbital orders and to transform insulators into metals. In cuprates, this technique …

Strong optical pulses at mid-infrared and terahertz frequencies have recently emerged as
powerful tools to manipulate and control the solid state and especially complex condensed …

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 enigmatic pseudogap phase in underdoped cuprate high-T c superconductors has long
been recognized as a central puzzle of the T c problem. Recent data show that the …

We report on a photoinduced transient state of YBa 2 Cu 2 O 6+ δ in which transport
perpendicular to the Cu-O planes becomes highly coherent. This effect is achieved by …

Recent advances in laser technology have made it possible to generate of precisely shaped
strong-field pulses at terahertz frequencies. These pulses are especially useful to selectively …

Upon introducing charge carriers into the copper–oxygen sheets of the enigmatic lamellar
cuprates, the ground state evolves from an insulator to a superconductor and eventually to a …

Neutron scattering experiments continue to improve our knowledge of spin fluctuations in
layered cuprates, excitations that are symptomatic of the electronic correlations underlying …