Publication Type
Journal
Journal Name
Physical Review B
Publication Date
Volume
80
Issue
16
Abstract
The perovskite NaOsO3 shows a Curie-Weiss metallic nature at high temperature and suddenly goes into an
antiferromagnetically insulating state at 410 K on cooling. Electronic specific heat at the low-temperature limit
is absent, indicating that the band gap fully opens. In situ observation in electron microscopy undetected any
lattice anomalies in the vicinity of the transition temperature. It is most likely that the antiferromagnetic
correlation plays an essential role in the gap opening.
