Compositional nanodomain formation in hybrid formate perovskites

We report the synthesis and structural characterisation of three mixed-metal formate perovskite families [C(NH\(_2\))\(_3\)]M\(_{1-x}\)Cu\(_x\)(HCOO)\(_3\) (M = Mn, Zn, Mg). Using a combination of infrared spectroscopy, non-negative matrix factorization, and reverse Monte Carlo refinement, we show t...

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Bibliographic Details
Published in:arXiv.org 2017-09
Main Authors: Donlan, Edwina A, Boström, Hanna L B, Geddes, Harry S, Reynolds, Emily M, Goodwin, Andrew L
Format: Article
Language:English
Subjects:
Copper
Ferroelectric materials
Ferroelectricity
Magnesium
Manganese
Miscibility
Perovskites
Relaxors
Zinc compounds
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Summary:We report the synthesis and structural characterisation of three mixed-metal formate perovskite families [C(NH\(_2\))\(_3\)]M\(_{1-x}\)Cu\(_x\)(HCOO)\(_3\) (M = Mn, Zn, Mg). Using a combination of infrared spectroscopy, non-negative matrix factorization, and reverse Monte Carlo refinement, we show that the Mn- and Zn-containing compounds support compositional nanodomains resembling the polar nanoregions of conventional relaxor ferroelectrics. The M = Mg family exhibits a miscibility gap that we suggest reflects the limiting behaviour of nanodomain formation.
ISSN:2331-8422
DOI:10.48550/arxiv.1709.00952