Crystal Research and Technology
Cryst. Res. Technol. 35 (2000) 19 - Abstract -

S. H. Kim, S. H. Lee*, T. H. Kim*, T. Zyung, Y. H. Jeong**, M. S. Jang*

ETRI, Kajeong, Yusong, Korea
*RCDAMP, Keumjeong Pusan, Korea
**Physics Department, POSTECH, Hyoja, Korea

Growth, Ferroelectric Properties, and Phonon Modes of YMnO3 Single Crystal

YMnO3 single crystals were grown by flux method and plate-like single crystals with the c-axis perpendicular to the surfaces were obtained. The maximum size of these crystals was about 2 x 2 x 0.07 mm3. Ferroelectric properties were measured at various frequencies and abnormal behavior at the low frequencies were observed and discussed using non-linear current-voltage behavior. Raman and IR spectra were obtained, and those results were compared with previous work.

Keywords: YMnO3, single crystal, ferroelectrics, D-E hysteresis, Raman, phonon


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