Ferroelectricity in NH•••N hydrogen bonded crystals

被引：261

作者：

Katrusiak, A

Szafranski, M

机构：

[1] Adam Mickiewicz Univ, Dept Crystal Chem, PL-60780 Poznan, Poland

[2] Adam Mickiewicz Univ, Fac Phys, PL-61614 Poznan, Poland

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.82.576

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

NH ... N hydrogen bonded crystals of [C6H7N2](+). ClO4- and [C6H7N2](+). BF4- undergo ferroelectric phase transitions at 377.0(5) and 378.1(5) K, respectively. Owing to particularly simple structure, built of linear NH ... N bonded aggregates, the spontaneous polarization of the crystals can be straightforwardly calculated from ionic displacements. The NH ... N bonded structures have been compared with transformations of analogous bistable OH ... O hydrogen bonds in H2O ices and KH2PO4-type ferroelectrics. [S0031-9007(98)08248-9].

引用

页码：576 / 579

页数：4

共 26 条

[1] POSSIBLE SPECIES OF FERROELASTIC CRYSTALS AND OF SIMULTANEOUSLY FERROELECTRIC AND FERROELASTIC CRYSTALS [J].