Comparative study of ferroelectric properties of DMAMe_1-_xCr_xS (Me=Al, Ga) crystals

V. KapustianykPhysical Department, Ivan Franko National University of Lviv, Lviv, Ukraine;Scientific-Technical and Educational Center of Low-Temperature Studies, Ivan Franko National University of Lviv, Lviv, UkraineCorrespondence[email protected]

Yu. EliyashevskyyPhysical Department, Ivan Franko National University of Lviv, Lviv, Ukraine

Z. CzaplaDepartment of Physics, Opole University of Technology, Opole, Poland;Institute of Experimental Physics, University of Wrocław, Wroclaw, Poland

S. DackoInstitute of Experimental Physics, University of Wrocław, Wroclaw, Poland

V. RudykScientific-Technical and Educational Center of Low-Temperature Studies, Ivan Franko National University of Lviv, Lviv, Ukraine

N. OstapenkoScientific-Technical and Educational Center of Low-Temperature Studies, Ivan Franko National University of Lviv, Lviv, Ukraine

ABSTRACT

This paper is devoted to investigations of ferroelectric properties of dimethylammonium metal sulphate hexahydrate DMAMe_1-_xCr_xS (Me=Al, Ga) ferroelectric crystals in vicinity of the ferroelastic-ferroelectric phase transition. In particular, it is shown that the isomorphous substitution of the aluminium ion with chromium noticeably changes the temperature of phase transition and spontaneous polarization in DMAAl_1-_xCr_xS. These changes are explained in terms of clusters sizes and dynamics in the framework of the order-disorder type phase transition mechanism.

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Comparative study of ferroelectric properties of DMAMe_1-_xCr_xS (Me=Al, Ga) crystals

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Comparative study of ferroelectric properties of DMAMe1-xCrxS (Me=Al, Ga) crystals

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Comparative study of ferroelectric properties of DMAMe_1-_xCr_xS (Me=Al, Ga) crystals