Spin-1/2 Triangular Lattice in Ag2NiO2

A novel metallic compound with a spin-1/2 triangular lattice is reported. It is a silveroxonickelate Ag2NiO2 containing a NiO2 layer which possesses a spin-1/2 triangular lattice with twofold spin and twofold orbital degeneracy. It is found that a structural transition takes place at Ts = 260 K, whi...

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Bibliographic Details
Main Authors: Yoshida, Hiroyuki, Muraoka, Yuji, Hiroi, Zenji, Sorgel, Timo, Jansen, Martin
Format: Conference Proceeding
Language:English
Online Access:Get full text
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Summary:A novel metallic compound with a spin-1/2 triangular lattice is reported. It is a silveroxonickelate Ag2NiO2 containing a NiO2 layer which possesses a spin-1/2 triangular lattice with twofold spin and twofold orbital degeneracy. It is found that a structural transition takes place at Ts = 260 K, which may be related to orbital ordering, and long-range antiferromagnetic order sets in below TN = 54 K.
ISSN:0094-243X
DOI:10.1063/1.2355083