Doping-induced magnetization plateaus

verfasst von

Holger Frahm, Constantin Sobiella

Abstract

The low temperature magnetization process of antiferromagnetic spin-S chains doped with mobile spin-(S-1/2) carriers is studied in an exactly solvable model. For sufficiently high magnetic fields the system is in a metallic phase with a finite gap for magnetic excitations. In this phase which exists for a large range of carrier concentrations x the zero temperature magnetization is determined by x alone. This leads to plateaus in the magnetization curve at a tunable fraction of the saturation magnetization. The critical behaviour at the edges of these plateaus is studied in detail.

Organisationseinheit(en)

Institut für Theoretische Physik

Typ

Artikel

Journal

Physical Review Letters

Band

83

Seiten

5579-5582

Anzahl der Seiten

4

ISSN

0031-9007

Publikationsdatum

27.12.1999

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie

Elektronische Version(en)

https://arxiv.org/abs/cond-mat/9907258 (Zugang: Offen)
https://doi.org/10.1103/PhysRevLett.83.5579 (Zugang: Unbekannt)
https://doi.org/10.15488/5081 (Zugang: Offen)