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An A‐Site Mixed‐Ammonium Solid Solution Perovskite Series of [(NH 2 NH 3 ) x (CH 3 NH 3 ) 1− x ][Mn(HCOO) 3 ] ( x =1.00–0.67)
Author(s) -
Chen Sa,
Shang Ran,
Wang BingWu,
Wang ZheMing,
Gao Song
Publication year - 2015
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201504396
Subject(s) - ferroelectricity , solid solution , perovskite (structure) , phase transition , ammonium , inorganic chemistry , materials science , analytical chemistry (journal) , polarization (electrochemistry) , crystallography , chemistry , mineralogy , dielectric , condensed matter physics , physics , optoelectronics , organic chemistry , chromatography , metallurgy
The A‐site mixed‐ammonium solid solutions of metal–organic perovskites [(NH 2 NH 3 ) x (CH 3 NH 3 ) 1−x ][Mn(HCOO) 3 ] (x=1.00–0.67) exhibit para‐ to ferroelectric diffuse phase transitions with lowered transition temperatures from x=1.00 to 0.67. These properties are due to the decreased framework distortion and polarization in their low temperature ferroelectric phases caused by the increased CH 3 NH 3 + concentration.