Photorefractive effect of Rh-doped barium titanate.
نویسندگان
چکیده
منابع مشابه
Electrooptic and piezoelectric measurements in photorefractive barium titanate and strontium barium niobate
We have measured the low-frequency ("unclamped") electrooptic and piezoelectric coefficients in undoped BaTiO, and SrSa, -Nh2O6 (x = 0.61) crystals using interferometric techniques. The Contribution of the piezoelectric effect to the Pockels measurements is discussed. For an applied ac electric field in the range 0.1-200 V/cm, the electrooptic and piezoelectric effects are linear in the magnitu...
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Comparative studies of Cerium and Zirconium doped Barium Titanate S.N. Rahman, N. Khatun, S. Islam, N.A. Ahmed Industrial Physics Division, BCSIR Laboratories, Dhaka. Bangladesh Council of Scientific and Industrial Research (BCSIR) Dr. Kudrat-i-Khuda Road, Dhaka-1205, BANGLADESH. __________________________________________________________________________________________ Abstract: Comparative inv...
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We present the theoretical and experimental results of photorefractive two-beam coupling in Cr-doped strontium barium niobate:60, using thermal excitation (i.e., dark conductivity) to model the experimentally observed temperature-dependent behavior of the two-beam coupling constant and response time.
متن کاملEffect of re-oxidation firing on PTCR properties of Sm-doped barium titanate ceramics
The effect of reduction and re-oxidation firing on the PTCR properties of Sm-doped barium titanate ceramics was investigated for the application in multilayered PTC thermistors. The lattice parameters a, and c decreases monotonically with increasing oxygen concentration in the re-oxidation atmosphere, which seems to be related with an electrostatic Coulomb interaction between an oxygen vacancy ...
متن کاملH all effect and dielectric properties of Mn - doped barium titanate
BaMn Ti O (0# x # 0.01) ceramics have been prepared using a sol–gel method. The Hall coefficient, x 12x 3 leakage conductance and dielectric constant were measured. The Hall effect confirms that the charge carriers of the ceramics are electrons, and the electronic concentration n 5 1/ ueRu decreases with increasing Mn 31 41 concentration. We propose that Mn and Mn substitution of Ti can partial...
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ژورنال
عنوان ژورنال: Journal of Advanced Science
سال: 1996
ISSN: 1881-3917,0915-5651
DOI: 10.2978/jsas.8.84