Brillouin Scattering Study of the Polarization Relaxation Time near the Ferroelectric Phase Transition in Triglycine Selenate under High Pressure
1982 年 51 巻 5 号 p. 1453-1460
詳細
1982 年 51 巻 5 号 p. 1453-1460
Brillouin scattering spectrum associated with the quasi-longitudinal acoustic phonon propagated along the c axis of triglycine selenate has been observed in the pressure region up to 5.45 kbar. It was found from the pressure variation of the Brillouin shift frequency and width that the polarization relaxation time in the ferroelectric phase depends on pressure.
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