Campus Units

Ames Laboratory, Chemistry

Document Type

Article

Publication Version

Published Version

Publication Date

2007

Journal or Book Title

Physical Review Letters

Volume

99

Issue

016404

First Page

1

Last Page

4

DOI

10.1103/PhysRevLett.99.016404

Abstract

Results are presented of single crystal structural, thermodynamic, and reflectivity measurements of the double-perovskite Ba2NaOsO6. These characterize the material as a 5d1 ferromagnetic Mott insulator with an ordered moment of ∼0.2μB per formula unit and TC=6.8(3)  K. The magnetic entropy associated with this phase transition is close to Rln2, indicating that the quartet ground state anticipated from consideration of the crystal structure is split, consistent with a scenario in which the ferromagnetism is associated with orbital ordering.

Comments

This article is from Physical Review Letters 99 (2007): 1, doi:10.1103/PhysRevLett.99.016404. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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