Dilatometric Study of Ferroelectric Rb2CdI4Monoclinic Crystal Grown by Czochralski Method

Autor: Hironobu Kasano, Toshihisa Yamaguchi, S. Gotou, Toshiharu Mitsui, Fuminao Shimizu, Masaaki Takashige, Tatsuki Miyoshi, Tadashi Kurihama
Rok vydání: 2010
Předmět:
Zdroj: Ferroelectrics. 402:156-162
ISSN: 1563-5112
0015-0193
DOI: 10.1080/00150191003709313
Popis: Crystal growth of Rb2CdI4 was performed by Czochralski method. Transparent colourless crystals with monoclinic structure were obtained. Temperature dependence of the dielectric constant along the b-axis was measured with variation of frequency. The thermal expansions xi (i = a, b, c and a′; a ′ = a + c) along the four independent axes were measured both by clip-type strain-gauge dilatometer and X-ray diffraction methods. These results show distinct anomalies associated with the ferroelectric transition at TC = 210 K.
Databáze: OpenAIRE