The nature of chain-plane coupling in yttrium barium(2) copper(3) oxygen(7).

摘要

The work in this thesis revolves around a simple model of the high temperature superconductor YBa;The main focus of the model is the link between two structural elements within the unit cell--the so called copper-oxide "planes" and "chains". Both the chains and planes are believed to play an active role in determining the highly unusual properties of YBa;In the chapters which follow, several physical properties of the model are calculated. The calculations allow us to interpret a number of experiments, such as penetration depth, and YBa