کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1787498 | 1023444 | 2013 | 5 صفحه PDF | دانلود رایگان |

• Erbium tartrate dihydrate is a ferroelectric material with non-linear optical behavior.
• The crystals of erbium tartrate dihydrate are thermally stable up to a temperature of about 240 °C.
• The crystals show second harmonic generation efficiency comparable to that of KDP.
The dielectric, ferroelectric and non-linear optical behavior of erbium tartrate dihydrate crystals is studied. The dielectric constant has been measured as a function of temperature and frequency. The crystals of erbium tartrate dihydrate show an anomalous dielectric behavior as a function of temperature: the dielectric constant increases with temperature, attains a peak around 235 °C and then decreases as the temperature goes beyond 235 °C. The dielectric anomaly at 235 °C is suggested to be due to ferroelectric phase transition brought about in the material. The experiment on polarization versus electric field shows a hysteresis loop thereby establishing the ferroelectric nature of erbium tartrate dihydrate. The results of thermal study show that the material is thermally stable up to a temperature of about 240 °C. The non-linear optical study shows that erbium tartrate dihydrate has second harmonic generation efficiency comparable to that of potassium dihydrogen phosphate (KDP).
Journal: Current Applied Physics - Volume 13, Issue 9, November 2013, Pages 1928–1932