HfMnSb2: A Metal-Ordered NiAs-type Pnictide with a Conical Spin Order

Taito Murakami; Takafumi Yamamoto; Cédric Tassel; Hiroshi Takatsu; Clemens Ritter; Yoshitami Ajiro; Hiroshi Kageyama

doi:10.1002/anie.201602066

HfMnSb₂: A Metal-Ordered NiAs-type Pnictide with a Conical Spin Order

Taito Murakami, Takafumi Yamamoto, Cédric Tassel, Hiroshi Takatsu, Clemens Ritter, Yoshitami Ajiro, Hiroshi Kageyama

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The NiAs-type structure is one of the most common structures in solids, but metal order has been almost exclusively limited to chalcogenides. The synthesis of HfMnSb₂is reported with a novel metal-ordered NiAs-type structure. HfMnSb₂undergoes a conical spin order below 270 K, in marked contrast to conventional magnetic order observed in NiAs-type pnictides. We argue that the layered arrangement of Hf and Mn makes it a quasi 2D magnet, where the Mn layers with localized magnetic moments (Mn²⁺; S=5/2) can interact only through RKKY interactions, instead of metal–metal bonding that is otherwise dominant for typical NiAs-type pnictides. This result suggests that controlling order–disorder in NiAs-type pnictides enables a study of 2D-to-3D crossover behavior in itinerant magnetic system.

Original language	English
Pages (from-to)	9877-9880
Number of pages	4
Journal	Angewandte Chemie - International Edition
Volume	55
Issue number	34
DOIs	https://doi.org/10.1002/anie.201602066
Publication status	Published - 2016 Aug 16
Externally published	Yes

Keywords

NiAs structure
cation order
conical spin order
pnictides
solid-state structures

ASJC Scopus subject areas

Catalysis
Chemistry(all)

Access to Document

10.1002/anie.201602066

Cite this

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title = "HfMnSb2: A Metal-Ordered NiAs-type Pnictide with a Conical Spin Order",

abstract = "The NiAs-type structure is one of the most common structures in solids, but metal order has been almost exclusively limited to chalcogenides. The synthesis of HfMnSb2is reported with a novel metal-ordered NiAs-type structure. HfMnSb2undergoes a conical spin order below 270 K, in marked contrast to conventional magnetic order observed in NiAs-type pnictides. We argue that the layered arrangement of Hf and Mn makes it a quasi 2D magnet, where the Mn layers with localized magnetic moments (Mn2+; S=5/2) can interact only through RKKY interactions, instead of metal–metal bonding that is otherwise dominant for typical NiAs-type pnictides. This result suggests that controlling order–disorder in NiAs-type pnictides enables a study of 2D-to-3D crossover behavior in itinerant magnetic system.",

keywords = "NiAs structure, cation order, conical spin order, pnictides, solid-state structures",

author = "Taito Murakami and Takafumi Yamamoto and C{\'e}dric Tassel and Hiroshi Takatsu and Clemens Ritter and Yoshitami Ajiro and Hiroshi Kageyama",

note = "Funding Information: This work was supported by Grant-in-Aid for Scientific Research (A) (No. 16H02267), Young Scientist Grant B from MEXT and CREST. We thank G. Nilsen for his help in neutron experiments. SXRD experiments were performed at SPring-8 (2014B1104, 2013A1360). Publisher Copyright: {\textcopyright} 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2016",

month = aug,

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doi = "10.1002/anie.201602066",

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T2 - A Metal-Ordered NiAs-type Pnictide with a Conical Spin Order

AU - Murakami, Taito

AU - Yamamoto, Takafumi

AU - Tassel, Cédric

AU - Takatsu, Hiroshi

AU - Ritter, Clemens

AU - Ajiro, Yoshitami

AU - Kageyama, Hiroshi

N1 - Funding Information: This work was supported by Grant-in-Aid for Scientific Research (A) (No. 16H02267), Young Scientist Grant B from MEXT and CREST. We thank G. Nilsen for his help in neutron experiments. SXRD experiments were performed at SPring-8 (2014B1104, 2013A1360). Publisher Copyright: © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2016/8/16

Y1 - 2016/8/16

N2 - The NiAs-type structure is one of the most common structures in solids, but metal order has been almost exclusively limited to chalcogenides. The synthesis of HfMnSb2is reported with a novel metal-ordered NiAs-type structure. HfMnSb2undergoes a conical spin order below 270 K, in marked contrast to conventional magnetic order observed in NiAs-type pnictides. We argue that the layered arrangement of Hf and Mn makes it a quasi 2D magnet, where the Mn layers with localized magnetic moments (Mn2+; S=5/2) can interact only through RKKY interactions, instead of metal–metal bonding that is otherwise dominant for typical NiAs-type pnictides. This result suggests that controlling order–disorder in NiAs-type pnictides enables a study of 2D-to-3D crossover behavior in itinerant magnetic system.

AB - The NiAs-type structure is one of the most common structures in solids, but metal order has been almost exclusively limited to chalcogenides. The synthesis of HfMnSb2is reported with a novel metal-ordered NiAs-type structure. HfMnSb2undergoes a conical spin order below 270 K, in marked contrast to conventional magnetic order observed in NiAs-type pnictides. We argue that the layered arrangement of Hf and Mn makes it a quasi 2D magnet, where the Mn layers with localized magnetic moments (Mn2+; S=5/2) can interact only through RKKY interactions, instead of metal–metal bonding that is otherwise dominant for typical NiAs-type pnictides. This result suggests that controlling order–disorder in NiAs-type pnictides enables a study of 2D-to-3D crossover behavior in itinerant magnetic system.

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