This article gives an overview of both theoretical and experimental developments
concerning states with lattice symmetry breaking in the cuprate high-temperature …

Un des problèmes majeurs des oxydes de cuivre supraconducteurs à haute température
critique est l'origine de la phase pseudogap dans l'état sous-dopé. En utilisant des mesures …

Motivated by the recent report of broken time-reversal symmetry and zero momentum
magnetic scattering in underdoped cuprates, we investigate under which circumstances …

The origin of the pseudogap region below a temperature T* is at the heart of the mysteries of
cuprate high-temperature superconductors. Unusual properties of the pseudogap phase …

Spin-polarized neutron diffraction experiments have revealed an unusual q= 0 magnetic
order in the model high-temperature superconductor HgBa 2 CuO 4+ δ (Hg1201) below the …

A computation of the cuprate phase diagram is presented. Adiabatic deformability back to
the density function band structure plus symmetry constraints lead to a Fermi liquid theory …

We introduce a mechanism in which coupling between fluctuating spin magnetic dipole
moments and polar optical phonons leads to a nonzero ferroic ordering of quasistatic …

Mixed spin-singlet and spin-triplet pairing can occur in noncentrosymmetric
superconductors. In this respect, a comprehensive characterization of the …

As in YBa 2 Cu 3 O 6+ x and HgBa 2 CuO 8+ δ, the pseudogap state in Bi 2 Sr 2 CaCu 2 O
8+ δ is characterized by the existence of an intra-unit-cell magnetic order revealed by …

The simple structure of HgBa 2 CuO 4+ δ (Hg1201) is ideal among cuprates for study of the
pseudogap phase as a broken symmetry state. We have performed O 17 nuclear magnetic …