Research articles

search articles

My Pages

Stat

Members: 3645
Articles: 2'503'724
Articles rated: 2609

23 April 2024

» arxiv » 1103.1039

Article overview

Low-moment magnetism in the double perovskites Ba2MOsO6 (M=Li,Na)
Andrew J. Steele ; Peter J. Baker ; Tom Lancaster ; Francis L. Pratt ; Isabel Franke ; Saman Ghannadzadeh ; Paul A. Goddard ; William Hayes ; D. Prabhakaran ; Stephen J. Blundell ;
Date:	5 Mar 2011
Abstract:	The magnetic ground states of the isostructural double perovskites Ba$_2$NaOsO$_6$ and Ba$_2$LiOsO$_6$ are investigated with muon-spin rotation. In Ba$_2$NaOsO$_6$ long-range magnetic order is detected via the onset of a spontaneous muon-spin precession signal below $T_{mathrm{c}}=7.2pm 0.2;mathrm{K}$, while in Ba$_2$LiOsO$_6$ a static but spatially-disordered internal field is found below 8 K. A novel probabilistic argument is used to show from the observed precession frequencies that the magnetic ground state in Ba$_2$NaOsO$_6$ is most likely to be low-moment ($approx 0.2$,$mu_{ m B}$) ferromagnetism and not canted antiferromagnetism. Ba$_2$LiOsO$_6$ is antiferromagnetic and we find a spin-flop transition at 5.5,T. A reduced osmium moment is common to both compounds, probably arising from a combination of spin-orbit coupling and frustration.
Source:	arXiv, 1103.1039
Services:	Forum \| Review \| PDF \| Favorites

No review found.

Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

ScienXe.org
» my Online CV
» Free

News, job offers and information for researchers and scientists:

home

contact

sitemap