Ir[O.sub.4] magnetic phase diagram from resistivity

We show that, contrary to previous belief, the transition to the antiferromagnetic state of [Sr.sub.2]Ir[O.sub.4] in zero magnetic field does show up in the transverse resistivity. We attribute this to a change in transverse integrals associated to the magnetic ordering, which is evaluated consideri...

Full description

Saved in:
Bibliographic Details
Published in:The European physical journal. B, Condensed matter physics Condensed matter physics, 2015-06
Main Authors: Fruchter, Luc, Collin, Gaston, Colson, Dorothee, Brouet, Veronique
Format: Article
Language:English
Subjects:
Ferromagnetism
Magnetic fields
Magnetization
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We show that, contrary to previous belief, the transition to the antiferromagnetic state of [Sr.sub.2]Ir[O.sub.4] in zero magnetic field does show up in the transverse resistivity. We attribute this to a change in transverse integrals associated to the magnetic ordering, which is evaluated considering hopping of the localized charge. The evolution of the resistivity anomaly associated to the magnetic transition under applied magnetic field is studied. It tracks the magnetic phase diagram, allowing to identify three different lines, notably the spin-flip line, associated with the reordering of the ferromagnetic component of the magnetization, and an intriguing line for field induced magnetism, also corroborated by magnetization measurements.
ISSN:1434-6028
1434-6036
DOI:10.1140/epjb/e2015-50872-4