Tassel, Cédric, Goto, Yoshihiro, Kuno, Yoshinori, Hester, James, Green, M.A., Kobayashi, Yoji, Kageyama, Hiroshi (2014) Direct Synthesis of Chromium Perovskite Oxyhydride with a High Magnetic-Transition Temperature. Angewandte Chemie International Edition, 53 (39). pp. 10377-10380. ISSN 1433-7851. (doi:10.1002/anie.201405453) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:51077)
| The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. | |
| Official URL: http://doi.org/10.1002/anie.201405453 |
Abstract
We report a novel oxyhydride SrCrO2H directly synthesized by a high‐pressure high‐temperature method. Powder neutron and synchrotron X‐ray diffraction revealed that this compound adopts the ideal cubic perovskite structure equation image with O2−/H− disorder. Surprisingly, despite the non‐bonding nature between Cr 3d t2g orbitals and the H 1s orbital, it exhibits G‐type spin ordering at TN≈380 K, which is higher than that of RCrO3 (R=rare earth) and any chromium oxides. The enhanced TN in SrCrO2H with four Cr‐O‐Cr bonds in comparison with RCr3+O3 with six Cr‐O‐Cr bonds is reasonably explained by the tolerance factor. The present result offers an effective strategy to tune octahedral tilting in perovskites and to improve physical and chemical properties through mixed anion chemistry.
| Item Type: | Article |
|---|---|
| DOI/Identification number: | 10.1002/anie.201405453 |
| Uncontrolled keywords: | Functional Materials Group, chromium; high-pressure chemistry; mixed anion phases; oxyhydrides; perovskites |
| Subjects: |
Q Science > QC Physics > QC173.45 Condensed Matter Q Science > QD Chemistry > QD478 Solid State Chemistry |
| Divisions: | Divisions > Division of Natural Sciences > Physics and Astronomy |
| Depositing User: | Mark Green |
| Date Deposited: | 19 Oct 2015 13:53 UTC |
| Last Modified: | 17 Aug 2022 10:59 UTC |
| Resource URI: | https://kar.kent.ac.uk/id/eprint/51077 (The current URI for this page, for reference purposes) |
University of Kent Author Information
Green, M.A..
| Creator's ORCID: |
 https://orcid.org/0000-0002-7886-6205
|
|---|---|
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