TY - JOUR
T1 - High-resolution 31P nuclear magnetic resonance study of phase transitions in TlH2PO4
AU - Lee, Cheol Eui
AU - Dalal, N. S.
AU - Fu, R.
PY - 2003/10
Y1 - 2003/10
N2 - High-resolution 31P nuclear magnetic resonance (NMR) techniques were employed to study a KH2PO4-type ferroelectric system, TlH2PO4. A marked temperature dependence of the isotropic chemical shift below the ferroelastic phase transition temperature is indicative of an electronic instability. The NMR linewidth showed a discontinuity at the ferroelastic phase transition, and the anisotropy was measured to increase rapidly below the antiferroelectric phase transition. Thus, the changes in the microscopic environments associated with the phase transitions were sensitively reflected in a characteristic manner.
AB - High-resolution 31P nuclear magnetic resonance (NMR) techniques were employed to study a KH2PO4-type ferroelectric system, TlH2PO4. A marked temperature dependence of the isotropic chemical shift below the ferroelastic phase transition temperature is indicative of an electronic instability. The NMR linewidth showed a discontinuity at the ferroelastic phase transition, and the anisotropy was measured to increase rapidly below the antiferroelectric phase transition. Thus, the changes in the microscopic environments associated with the phase transitions were sensitively reflected in a characteristic manner.
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U2 - 10.1016/S1567-1739(03)00101-9
DO - 10.1016/S1567-1739(03)00101-9
M3 - Article
AN - SCOPUS:0141644144
SN - 1567-1739
VL - 3
SP - 405
EP - 408
JO - Current Applied Physics
JF - Current Applied Physics
IS - 5
ER -