DIELECTRIC-PROPERTIES AND ELECTRIC-CONDUCTIVITY OF DIMETHYLAMMONIUM TETRACHLORCOBALTATE FERROELECTRIC-CRYSTALS

被引：18

作者：

KAPUSTIANIK, VB

SVELEBA, SA

TCHUKVINSKYI, R

KORCHAK, Y

MOKRYI, V

POLOVINKO, II

TRYBULA, Z

机构：

[1] JAN KOCHANOWSKI UNIV HUMANITIES & SCI, PL-25590 KIELCE, POLAND

[2] POLISH ACAD SCI, INST MOLEC PHYS, PL-60179 POZNAN, POLAND

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 1995年 / 151卷 / 02期

关键词：

D O I：

10.1002/pssa.2211510225

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dielectric parameters and electric conductivity of (NH2(CH3)(2))(2)CoCl4 crystals are investigated. Existence of the ferroelectric phase was observed below T-c = 258 K. The occurrence of phase transitions at 244, 314, and 435 K is confirmed. The investigated crystals also manifest anomalously high conductivity commensurate with that in semiconductors. Its value as well as region of existence strongly depend on the preceding history of the sample. It is shown that the anomalous conductivity is connected with translocation of protons which participate in the formation of hydrogen bonds.

引用

页码：481 / 488

页数：8

共 12 条

[1] THERMOCHROMISM IN COPPER(II) HALIDE SALTS .4. [(C2H5)2NH2]2CUCL4, STRUCTURE OF THE HIGH-TEMPERATURE PHASE AND PHYSICAL CHARACTERIZATION OF ITS 2 PHASES [J].