X-Ray Structural Study of the Successive Phase Transitions in Ammonium Tetrachlorozincate,(NH_4)_2ZnCl_4.II.Structural Modulation

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概要

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• The crystal structure of (NH.).ZnC1. at 418 K (Phase I) was refined to 7?= 0.037 byusing a split atom model for Cl atoms, and the amplitudes of the static modulationwaves at 333 K (Phase II), 298 K (Phase III) and 223 K (Phase TV) were estimated fromthe atomic coordinates. The structure obtained at 418 K suggests the disordering of theZnCI. group. It is found that half distances between the split atoms at 418 Kcorrespond to expected amplitudes from the temperature dependence of the mod-ulation waves in the lower temperature phases.

• 社団法人日本物理学会の論文
• 1982-03-15

著者

• Matsunaga Hironori

  Faculty Of Science Hiroshima University

関連論文

• Birefringence of Ferroelectric Cesium Dihydrogen Phosphate, CsH_2PO_4
• Disordered Structure of Rb_2ZnCl_4 in the Normal Phase
• X-Ray Structural Study of Ferroelectric Cesium Dihydrogen Phosphate at Room Temperature
• Nature of Modulated Structure of K_2ZnCL_4 in Ferroelectric Phase
• Refinement of Crystal Structure of SbSI in the Ferroelectric Phase
• X-Ray Structural Study of the Successive Phase Transitions in Ammonium Tetrachlorozincate,(NH_4)_2ZnCl_4.II.Structural Modulation
• Successive Phase Transitions in (NH_4)_2ZnCl_4

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