| 2 | Author
| G. H., C. A., J. Zaleskia, G. Batorb, R. Jakubasb | Requires cookie* | | Title
| D  | | | Abstract
| ie le c tr ic P r o p e r tie s a n d C h a r a c te r is a tio n o f th e S u p e rio n ic P h a s e o f [ C (N H 2) 3]2S b C l 5* [ C (N H 2) 3]C l (GHCA undergoes four phase transitions at Tcl = 402 K, Tc2 = 373 K, Ta = 162 K, and TcA = 146 K. Below Tc3 it possesses pyroelectric properties with the spontaneous polarization vector (Ps) in the ac plane and the maximum along the c axis equal to 8 pC/m2. Dielectric dispersion studies of GHCA show that the main dielectric dispersion connected probably with collective motions of chlorine ions is above 1GHz. For the phase transition at Tc2 to a superionic phase the thermal dilatation and electric conductivity were measured. The anomalies of the electric conductivity at Tc2 and T x were observed with large values of <j(10"3 S/m) above Tcl. The guanidinium cations above Tc2, besides reorientational motions, undergo slow self diffusion. | | |
Reference
| Z. Naturforsch. 50a, 888—892 (1995); received February 20 1995 | | |
Published
| 1995 | | |
Keywords
| Guanidinium, chloroantimonate, phase transition, DSC, dilatometric, pyroelectric, electric conductivity | | |
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| 50 | |
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