Intrinsic Triple Order in A-site Columnar-Ordered Quadruple Perovskites: Proof of Concept

Belik, Alexei A.; Khalyavin, Dmitry D.; Zhang, Lei et al.

ChemPhysChem, 2018, 19(19), 2449-2452

Permalink : https://hdl.handle.net/2115/75724

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アクセス権
open access
URI
https://hdl.handle.net/2115/75724
タイトル
Intrinsic Triple Order in A-site Columnar-Ordered Quadruple Perovskites: Proof of Concept
著者
Belik, Alexei A. ; Khalyavin, Dmitry D. ; Zhang, Lei ; Matsushita, Yoshitaka ; Katsuya, Yoshio ; Tanaka, Masahiko ; Johnson, Roger D. ; Yamaura, Kazunari
著者名
Belik, Alexei A.
著者名
Khalyavin, Dmitry D.
著者名
Zhang, Lei
著者名
Matsushita, Yoshitaka
著者名
Katsuya, Yoshio
著者名
Tanaka, Masahiko
著者名
Johnson, Roger D.
e-Rad_Researcher
70391216
著者名
Yamaura, Kazunari
言語
英語
キーワード
high-pressure chemistry
materials science
perovskite phases
発行日
2018-10-05
出版者
Wiley-Blackwell
収録物名
ChemPhysChem
巻(号)
19(19)
ページ
2449-2452
抄録
There is an emerging topic in the science of perovskite materials: A-site columnar-ordered A(2)A'A '' B4O12 quadruple perovskites, which have an intrinsic triple order at the A sites. However, in many examples reported so far, A and A cations are the same, and the intrinsic triple order is hidden. Here, we investigate structural properties of Dy2CuMnMn4O12 (1) and Ho2MnGaMn4O12 (2) by neutron and X-ray powder diffraction and prove the triple order at the A sites. The cation distributions determined are [Ho-2](A)[Mn](A)[Ga0.66Mn0.34](A)[Mn3.66Ga0.34](B)O-12 and [Dy-2](A)[Cu0.73Mn0.27](A)[Mn0.80Dy0.20](A)[Mn1.89Cu0.11](B1)[Mn-2](B2)O-12. There are clear signatures of Jahn-Teller distortions in 1 and 2, and the orbital pattern is combined with an original type of charge ordering in 1. Columnar-ordered quadruple perovskites represent a new playground to study complex interactions between different electronic degrees of freedom. No long-range magnetic order was found in 2 by neutron diffraction, and its magnetic properties in low fields are dominated by an impurity with negative magnetization or magnetization reversal. On the other hand, 1 shows three magnetic transitions at 21, 125, and 160K.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
権利情報
This is the peer reviewed version of the following article: A. A. Belik, D. D. Khalyavin, L. Zhang, Y. Matsushita, Y. Katsuya, M. Tanaka, R. D. Johnson, K. Yamaura, ChemPhysChem 2018, 19, 2449, which has been published in final form at https://doi.org/10.1002/cphc.201800593. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
PISSN
1439-4235
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1002/cphc.201800593