Magnetic-Nonmagnetic Phase Transition with Interlayer Charge Disproportionation of Nb3 Trimers in the Cluster Compound Nb3Cl8 | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

4838035

Reference Type

Journal Article

Title

Magnetic-Nonmagnetic Phase Transition with Interlayer Charge Disproportionation of Nb3 Trimers in the Cluster Compound Nb3Cl8

Author(s)

Haraguchi, Y; Michioka, C; Ishikawa, M; Nakano, Y; Yamochi, H; Ueda, H; Yoshimura, K

Year

2017

Is Peer Reviewed?

Yes

Journal

Inorganic Chemistry
ISSN: 0020-1669
EISSN: 1520-510X

Volume

Issue

Page Numbers

3483-3488

Language

English

PMID

28240540

DOI

10.1021/acs.inorgchem.6b03028

Web of Science Id

WOS:000397171100044

Abstract

We grew large single crystals of the cluster magnet Nb3Cl8 with a magnetic triangular lattice and investigated its magnetic properties and crystal structure. In Nb3Cl8, the [Nb3]8+ cluster has a single unpaired spin, making it an S = 1/2 triangular lattice anti-ferromagnet. At low temperatures, Nb3Cl8 exhibits a magnetic-nonmagnetic phase transition driven by a charge disproportionation, in which the paramagnetic [Nb3]8+ clusters transform into alternating layers of nonmagnetic [Nb3]7+ and [Nb3]9+ clusters. The observed exotic phenomenon with the strong correlation between the magnetism and structure are based on the nature of the cluster magnetism.