%0 Journal Article
%A Sarapulova, A. E.
%A Bazarov, B.
%A Namsaraeva, T.
%A Dorzhieva, S.
%A Bazarova, J.
%A Grossman, V.
%A Bush, A. A.
%A Antonyshyn, I.
%A Schmidt, M.
%A Bell, A. M. T.
%A Knapp, Michael
%A Ehrenberg, H.
%A Eckert, J.
%A Mikhailova, D.
%T Possible Piezoelectric Materials CsMZr<sub>0.5</sub>(MoO<sub>4</sub>)<sub>3</sub> ( M = Al, Sc, V, Cr, Fe, Ga, In) and CsCrTi<sub>0.5</sub>(MoO<sub>4</sub>)<sub>3</sub>: Structure and Physical Properties
%J The journal of physical chemistry  / C
%V 118
%N 4
%@ 1932-7455
%C Washington, DC
%I Soc.
%M DESY-2014-02330
%P 1763 - 1773
%D 2014
%X A series of isostructural trigonal molybdates CsMZr0.5(MoO4)(3) with M = Al, Ga, In, Sc, Cr, V, Fe, and CsCrTi0.5(MoO4)(3) was synthesized by solid state reactions and characterized by synchrotron powder diffraction, differential scanning calorimetry, thermal conductivity measurements, and magnetization measurements for compounds with a magnetic 3d transition metal cation. The NASICON-type structure of these compounds represents a three-dimensional framework of corner-sharing trigonal MoO4-pyramids and MO6-octahedra, in which M and Zr (Ti) ions are randomly distributed. The Cs ions occupy large channels along the c-axis. A combination of phenomena like a drastic increase of thermal conductivity, endothermic signals in the DSC curve and anomalies in the thermal expansion coefficients, observed for the compounds with M = Cr, V, Fe, and CsCrTi0.3(MoO4)(3) above 700 K, allows one to propose a structural phase transition. The crystal structure of the high-temperature phase is very close to the low-temperature one. A significant hysteresis in high-temperature electronic and thermal conductivity was observed. A possible transition from the piezoelectric to the paraelectric state is discussed.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000330610200002
%R 10.1021/jp4077245
%U https://bib-pubdb1.desy.de/record/168084