Direct Evidence for the all-in/all-out Magnetic Structure in the Pyrochlore Iridates from Muon Spin Relaxation

Published

April 28, 2014

Author(s)

Steven M. Disseler

Abstract

An analysis of the experimentally measured spontaneous spin procession of muons in the pryochlore iridates R₂Ir₂O₇ (R = Lanthanide, Y) is presented here. It is shown through a novel approach incorporating both probabilistic and ab-initio modeling techniques that the experimentally observed results are consistent only with a magnetically ordered Ir⁴⁺ sublattice with the so-called 'all-in/all-out' magnetic structure, and that the electronic state of the Ir⁴⁺ is best described by the J_eff = 1/2 model in several member compounds. This approach also demonstrates how such simple order is not present on the rare-earth sublattice, specifically when R=Nd.

Citation

Physical Review Letters

Volume

89

Issue

14

Pub Type

Journals

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Keywords

iridate, pyrochlore, muon spin relaxation

Citation

Disseler, S. (2014), Direct Evidence for the all-in/all-out Magnetic Structure in the Pyrochlore Iridates from Muon Spin Relaxation, Physical Review Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=915560 (Accessed December 26, 2024)