Ferroelastic Domain Structures of the Low-Temperature Phase Transition in TlH_2PO_4

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概要

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• The low-tenaaperattmre II-III phase transition of T1H2 P04 (f'erroelastic in plaase II) at 230 K (T.) )was sttrdied by a polarizing microscope betxveen 300 and 80 K. Despite the II-III phase transitionat T.z, the two kinds of ferroelastic dornain strtncttrres xvith the (TOO) and/or (001) and (201)dornain botmndaries xvere still observed below 'Z'.2 and xvere nearly temperature-independent.No new dotnain strtrctttres corresponding to antif'erroelectric or ferrielectric orientation statesxvere observed in phase III. The possible intermediate strtmctural phase transition near 130 Kstrggested by vibrational spectroscopic sttrdy [B. Pasqtrier et (27.: Chem. Phys. 171 (1993) 203]was not detected. The transition at T.z withotrt optically detectable nexv dotnains indicates thatthe monoclinic crystal system of the phase II persists in phase III froraa 300 to 80 K and that thenattrre of the II-III phase trar'xsition of TIH,3P0.j is not ferroic, btrt is nonferroic.

• 社団法人日本物理学会の論文
• 1998-06-15

著者

• Lee Kwang-sei

  Department Of Nano Systems Engineering Center For Nano Manufacturing Inje University

• Kwang-sei Lee

  Department Of Physics Inje University

• Cheol Eui

  Department Of Physics Korea University

• Kum-bae Kim

  Department Of Physics Inje University

• Kim Kum-Bae

  Department of Physics,Inje University

• Lee Cheol-Eui

  Department of Physics,Korea University

関連論文

• Phase Diagram of TlH_2(P_As_x)O_4 Mixed Crystals
• Polarization Dependence of Lattice-Mode Raman Spectra in Rb_(NH_4)_4H_2PO_4 Crystals
• Nature of the High-Temperature Dielectric Anomaly in TlH_2PO_4
• Ferroelastic Domain Structures of the Low-Temperature Phase Transition in TlH_2PO_4
• Dielectric Study on the Low-Temperature Phase Transition of TlH_2 PO_4
• Dielectric Properties of the Phase Transition in TlH_2AsO_4
• New Phase Transition at 155 K and Thermal Stability in KHCO_3
• Neutron Diffraction Analysis of a Single-Crystal Structure of Rb0.51Tl0.49H2PO4
• The Origin of the Nonexistence of Prototypic Paraelastic Phase in (NH_4)_2SO_4
• Crystal Structure of LiH2PO4 Studied by Single-Crystal Neutron Diffraction

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