Magnetic order in ferromagnetically coupled spin ladders

A model of coupled antiferromagnetic spin-1/2 Heisenberg ladders is studied with numerical techniques. In the case of ferromagnetic interladder coupling we find that the dynamic and static structure factor has a peak at \((\pi,\pi/2)\) where the first (second) direction is along (transversal) to the...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2000-03
Main Authors: Dalosto, S D, Riera, J
Format: Article
Language:English
Subjects:
Antiferromagnetism
Coupling (molecular)
Cuprates
Ferromagnetism
Ladders
Mathematical models
Structure factor
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A model of coupled antiferromagnetic spin-1/2 Heisenberg ladders is studied with numerical techniques. In the case of ferromagnetic interladder coupling we find that the dynamic and static structure factor has a peak at \((\pi,\pi/2)\) where the first (second) direction is along (transversal) to the ladders. Besides, we suggest that the intensity of this peak and the spin-spin correlation at the maximum distance along the ladder direction remain finite in the bulk limit for strong enough interladder coupling. We discuss the relevance of these results for magnetic compounds containing ladders coupled in a trellis lattice and for the stripe scenario in high-T\(_c\) superconducting cuprates.
ISSN:2331-8422
DOI:10.48550/arxiv.9911271