Münster 1999 – wissenschaftliches Programm

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AM: Magnetismus

AM 12: Elektronentheorie und Modelle geordneter Spinstrukturen

AM 12.9: Vortrag

Mittwoch, 24. März 1999, 16:30–16:45, F4

Phase Diagram for Competing Superconducting and Spin Glass Order — •Heiko Feldmann and Reinhold Oppermann — Universität Würzburg

The phase diagram of a superconducting spin glass is obtained as a function of the chemical potential and temperature. We analyze all relevant ratios v/J between frustrated magnetic interaction and attractive coupling. Here, we find two different kinds of tricritical behaviour. We also discuss the possibility of coexistence between superconducting and spin glass order.