X-Ray Diffraction Study of KBr<sub><b>1</b>-<i>x</i></sub>(NO<sub><b>2</b></sub>)<sub><i>x</i></sub>Mixed Crystal

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  • Yagi Kenichiro
    Department of Physics, Kwansei–Gakuin University, Nishinomiya 662
  • Ohwada Kenji
    Department of Physics, Kwansei–Gakuin University, Nishinomiya 662
  • Terauchi Hikaru
    Department of Physics, Kwansei–Gakuin University, Nishinomiya 662

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タイトル別名
  • X-Ray Diffraction Study of KBr1-x(NO2)x Mixed Crystal.
  • X-Ray Diffraction Study of KBr1-x NO2 x

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An X-ray diffraction study of KBr0.64(NO2)0.36 was performed to elucidate its structural glass-like properties and compare them to those of other mixed crystals. As the temperature decreases, the fundamental Bragg reflections begin to decrease and strong diffused scattering appears around the Brillouin-zone center of an face centered cubic (fcc) lattice, Γ-point. The results indicate that the local distortion of a lattice with only short-range ferroelectric correlation is induced by reorientational freezing of nitrite ions. The correlation length estimated from the diffused scattering is about 23, Å at 100, K, which is much smaller than the coherence length of an X-ray.

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