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Coupling of Magnetic and Elastic Domains in the Organic–Inorganic Layered Perovskite‐Like (C 6 H 5 C 2 H 4 NH 3 ) 2 Fe II Cl 4 Crystal
Author(s) -
Nakayama Yuki,
Nishihara Sadafumi,
Inoue Katsuya,
Suzuki Takashi,
Kurmoo Mohamedally
Publication year - 2017
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201703898
Subject(s) - ferroelasticity , multiferroics , perovskite (structure) , magnetization , antiferromagnetism , ferromagnetism , hysteresis , condensed matter physics , coupling (piping) , spin canting , materials science , magnetic hysteresis , crystallography , ferroelectricity , nuclear magnetic resonance , chemistry , magnetic field , composite material , physics , quantum mechanics , dielectric , optoelectronics
Multiferroic materials coupling ferroelasticity and ferromagnetism show strong magnetoelastic effects as magnetization is induced by mechanical stress or alternately strain induced by applying a magnetic field. These effects were reported for inorganic multiferroics such as LaCo x Sr 1− x O 3 . (C 6 H 5 C 2 H 4 NH 3 ) 2 Fe II Cl 4 is the first example of an organic–inorganic perovskite to exhibit such effects below the canted antiferromagnetism at T C =98 K and ferroelasticity at T C =433 K. This is shown by switching the magnetic hysteresis on and off by uniaxial pressure through the strong coupling of the magnetic and elastic domains. The spin‐canting direction was controlled by mechanical stress in the heating and cooling cycles. This unique observation gives additional impetus in the search for coupled hysteretic effect in organic–inorganic multiferroics.