Thermal Expansion in K2SeO4

Susumu Shiozaki; Akikatsu Sawada; Yoshihiro Ishibashi; Yutaka Takagi

doi:10.1143/JPSJ.42.353

Journal of the Physical Society of Japan

Online ISSN : 1347-4073
Print ISSN : 0031-9015
ISSN-L : 0031-9015

Thermal Expansion in K₂SeO₄

Susumu Shiozaki, Akikatsu Sawada, Yoshihiro Ishibashi, Yutaka Takagi

著者情報

ジャーナル認証あり

1977 年 42 巻 1 号 p. 353-354

DOI https://doi.org/10.1143/JPSJ.42.353

詳細

抄録

Thermal expansion of K₂SeO₄ single crystals was measured over the temperature range covering the paraelectric, the intermediate incommensurate, and the ferroelectric commensurate phases. Remarkable change was found at the paraelectric-incommensurate phase transition in all lattice parameters a, b and c. The spontaneous strains x_1s and x_2s along the a and b axes show linear temperature dependence, while the spontaneous strain x_3s along the c axis shows a non-linear temperature dependence.