Phase diagram of disordered spin-Peierls systems

TL;DR

This paper investigates the phase diagram of disordered spin-Peierls systems, revealing how disorder influences the competition between spin-Peierls and antiferromagnetic phases, with results aligning with experimental observations on doped CuGeO_3.

Contribution

It provides a theoretical phase diagram for disordered spin-Peierls systems, highlighting the interplay between disorder and magnetic ordering.

Findings

Phase diagram showing competition between phases

Qualitative agreement with experiments on CuGeO_3

Disorder affects transition temperatures

Abstract

We study the competition between the spin-Peierls and the antiferromagnetic ordering in disordered quasi-one-dimensional spin systems. We obtain the temperature vs disorder-strength phase diagram, which qualitatively agrees with recent experiments on doped CuGeO_3.