TY  - JOUR
AU  - Sarapulova, A. E.
AU  - Bazarov, B.
AU  - Namsaraeva, T.
AU  - Dorzhieva, S.
AU  - Bazarova, J.
AU  - Grossman, V.
AU  - Bush, A. A.
AU  - Antonyshyn, I.
AU  - Schmidt, M.
AU  - Bell, A. M. T.
AU  - Knapp, Michael
AU  - Ehrenberg, H.
AU  - Eckert, J.
AU  - Mikhailova, D.
TI  - 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
JO  - The journal of physical chemistry  / C
VL  - 118
IS  - 4
SN  - 1932-7455
CY  - Washington, DC
PB  - Soc.
M1  - DESY-2014-02330
SP  - 1763 - 1773
PY  - 2014
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000330610200002
DO  - DOI:10.1021/jp4077245
UR  - https://bib-pubdb1.desy.de/record/168084
ER  -