We review the physics of pair-density wave (PDW) superconductors. We begin with a
macroscopic description that emphasizes order induced by PDW states, such as charge …

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 spectral energy gap is an important signature that defines states of quantum matter:
insulators, density waves and superconductors have very different gap structures. The …

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 …

The nature of the pseudogap phase of cuprate high-temperature superconductors is a major
unsolved problem in condensed matter physics. We studied the commencement of the …

To explore the doping dependence of the recently discovered charge-density-wave (CDW)
order in YBa 2 Cu 3 O y, we present a bulk-sensitive high-energy x-ray study for several …

In the quest to increase the critical temperature T c of cuprate superconductors, it is essential
to identify the factors that limit the strength of superconductivity. The upper critical field H c2 …

Doped Mott insulators have a strong propensity to form patterns of holes and spins often
referred to as stripes,,,,. In copper oxides, doping also gives rise to the pseudogap state …

The discovery of the pseudogap in the cuprates,, created significant excitement as it was
believed to be a signature of pairing, in some cases above room temperature. Indeed, a …

We use the Nernst effect to delineate the boundary of the pseudogap phase in the
temperature-doping phase diagram of hole-doped cuprate superconductors. New data for …