6533b7ddfe1ef96bd1273d06
RESEARCH PRODUCT
Ferroelectricity in {N(CH3)4}2ZnI4
Rene PerretKazuo Gesisubject
CrystalPermittivityPhase transitionMaterials scienceField (physics)Condensed matter physicsGeneral Physics and AstronomyDielectricLow frequencyFerroelectricityPyroelectricitydescription
Dielectric properties of the {N(CH 3 ) 4 } 2 ZnI 4 crystal were studied between room temperature and 4.2 K. Two phase transitions were seen from dielectric constant anomalies at T 1 =254 K and T c =210 K on cooling. Ferroelectric hysteresis loops were observed along the c -direction below T c with a low frequency applied field of 0.0025 Hz. The spontaneous polarization obtained by pyroelectric charge measurement tended to be 2.5×10 -3 C/m 2 at 0 K.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1988-11-15 | Journal of the Physical Society of Japan |