Measurements of Dielectric Constants in Lead Monoxide Single Crystals

1981 ◽  
Vol 20 (12) ◽  
pp. 2329-2335 ◽  
Author(s):  
Hiromi Unoki ◽  
Kunihiko Oka ◽  
Akira Nakamura
Keyword(s):  
Single Crystals ◽  
Dielectric Constants ◽  
Lead Monoxide

scholarly journals Dielectric relaxation in pure and Co-doped Bi12GeO20 single crystals

2015 ◽  
Vol 05 (03) ◽  
pp. 1550023 ◽  
Author(s):  
C. Filipič ◽  
A. Klos ◽  
M. Gajc ◽  
D. A. Pawlak ◽  
J. Dolinšek ◽  
...  
Keyword(s):  
Dielectric Relaxation ◽  
Single Crystals ◽  
Dielectric Constants ◽  
Complex Dielectric Constant ◽  
Spectroscopy Study ◽  
Potential Barriers ◽  
Thermally Activated ◽  
Electrical Conductivities ◽  
Co Nanoparticles ◽  
Co Doped

We report the results of investigation of dielectric spectroscopy study of single crystals of [Formula: see text] and [Formula: see text] doped with Co nanoparticles. The complex dielectric constant was measured in the temperature interval from 5 to 450 K and frequencies from 1 Hz to 1 MHz. The electrical conductivity of both samples was thermally activated with potential barriers of 0.55 eV and 0.59 eV, respectively. Doped samples had bigger complex dielectric constants and [Formula: see text] exhibited slightly steeper temperature dependence than in the pure sample. The dielectric relaxation was observed in pure and doped single crystals and relaxation frequencies showed similar activation energies as electrical conductivities.

scholarly journals Electromechanical Properties and Anisotropy of Acoustic Waves Characteristics in Single Crystals YAl₃(BO₃)₄

2019 ◽  
pp. 756-771
Author(s):  
Pavel P. Turchin ◽  
Sergey I. Burkov ◽  
Vladimir I. Turchin ◽  
Sergey V. Yurkevich ◽  
Pavel O. Sukhodaev ◽  
...  
Keyword(s):  
Single Crystals ◽  
Acoustic Waves ◽  
Ultrasonic Pulse ◽  
Dielectric Constants ◽  
Piezoelectric Modulus ◽  
Electromechanical Properties ◽  
Bulk Acoustic Waves ◽  
Experimental Values ◽  
Pulse Echo ◽  
Pulse Echo Method

Velocity of bulk acoustic waves in base and rotated cuts have been measured by the ultrasonic pulse-echo method and values of CE ijkl and eijk in single crystals YAl3(BO3)4 have been calculated. The value of dijk piezoelectric modulus of these single crystals have been determined by quasistatic measurements, and " ij dielectric constants have been determined by the flat capacitor method. Experimental values of material constants have been applied for the study of anisotropy of acoustic waves characteristics in single crystals YAl3(BO3)4

The elastic, piezoelectric and dielectric constants of tetragonal PbTiO3 single crystals

1993 ◽  
Vol 141 (1) ◽  
pp. 313-325 ◽  
Author(s):  
Z. Li ◽  
M. Grimsditch ◽  
X. Xu ◽  
S. -K. Chan
Keyword(s):  
Single Crystals ◽  
Dielectric Constants

Room-Temperature Nonlinear Dielectric Constants and Dielectric Tunability in Poled Pb(Mg 1/3 Nb 2/3 )O 3 -PbTiO 3 Single Crystals

2003 ◽  
Vol 20 (7) ◽  
pp. 1131-1133 ◽  
Author(s):  
Zhao Xiang-Yong ◽  
Wang Jie ◽  
Chew Khian-Hooi ◽  
Chan Wa-Lai Helen ◽  
Choy Chung-Loong ◽  
...  
Keyword(s):  
Single Crystals ◽  
Room Temperature ◽  
Dielectric Constants ◽  
Nonlinear Dielectric ◽  
Dielectric Tunability

Growth of single crystals of lead monoxide

1979 ◽  
Vol 47 (4) ◽  
pp. 568-572 ◽  
Author(s):  
K. Oka ◽  
H. Unoki ◽  
T. Sakudo
Keyword(s):  
Single Crystals ◽  
Lead Monoxide

Anisotropic Dielectric Constants ofBi2Sr2(Ca1-xYx)Cu2O8+y(x=0.0, 0.6) Single Crystals in 0.5–5.0 eV Region

1994 ◽  
Vol 33 (Part 1, No. 12A) ◽  
pp. 6530-6536 ◽  
Author(s):  
Hideshi Yabuki ◽  
Hiromichi Kataura ◽  
Seigo Takahashi ◽  
Hiroyoshi Ishii ◽  
Takaaki Hanyu ◽  
...  
Keyword(s):  
Single Crystals ◽  
Dielectric Constants ◽  
Anisotropic Dielectric

scholarly journals Quantum paraelectricity and induced ferroelectricity by germanium doping of (PbySn1–y)2P2S(Se)6 single crystals

2020 ◽  
Vol 60 (2) ◽  
Author(s):  
Ilona Zamaraitė ◽  
Andrius Džiaugys ◽  
Yulian Vysochanskii ◽  
Jūras Banys
Keyword(s):  
Dielectric Permittivity ◽  
Single Crystals ◽  
Low Temperatures ◽  
Dielectric Constants ◽  
Dielectric Study ◽  
Quantum Paraelectric ◽  
Temperature Dependences ◽  
Paraelectric State

In this paper we report a dielectric study on four single crystals Pb2P2S6, (Pb0.98Ge0.02)2P2S6, (Pb0.7Sn0.3)2P2S6 + 5% Ge and (Pb0.7Sn0.3)2P2Se6 + 5% Ge down to 20 K. A new quantum paraelectric state was reported in the Ge-doped samples at low temperatures. In all of these materials the non-classical T2 temperature dependences of inverse dielectric permittivity were observed. The dielectric constants of Pb2P2S6-based single crystals were measured between 20 and 300 K. The temperature dependences of dielectric permittivity were analysed on the basis of Barrett’s model as a signature of quantum paraelectricity.

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