High Tc superconductivity by quantum confinement

High Tc superconductivity by quantum confinement

We report the results of a careful expenmental investigation of trie Cu site configurations in the Cu02 Plane of B12Sr2CaCu208+y (B12212) showing tbat trie quasi 2D Fermi liquid is confined in trie stripes of width L with a superlattice period

Understanding High Tc Superconductivity ∗.

I briefly review several key issues in understanding the cuprate superconductors from the point of view of doped-Mott-insulator. Then I present an effective low-energy theory and show that the phase diagram of such a model includes an anti-ferromagnetic (AF) phase, a superconducting state, and a pseudogap phase at low doping and low temperature, consistent with the experimental one. The dual to...

Understanding High Tc Superconductivity ∗.

I briefly review several key issues in understanding the cuprate superconductors from the point of view of doped-Mott-insulator. Then I present an effective low-energy theory and show that the phase diagram of such a model includes an anti-ferromagnetic (AF) phase, a superconducting state, and a pseudogap phase at low doping and low temperature, consistent with the experimental one. The dual to...

High–Tc superconductivity by phase cloning

We consider a BCS-type model in the spin formalism and argue that the structure of the interaction provides a mechanism for control over directions of the spin −→ S other than Sz, which is being controlled via the conventional chemical potential. We also find the conditions for the appearance of a high-Tc superconducting phase. PACS codes: 03.70.+k, 11.10.Wx, 05.30.-d, 74.20.-z ∗ On leave from ...

Striping in High Tc Superconductivity