Electrical Properties and Phase Transitions of Ammonium Sulphate Ferroelectrics
نویسندگان
چکیده
منابع مشابه
Phase Transitions in Relaxor Ferroelectrics
This paper covers the properties of relaxor ferroelectrics and considers the transition from the paraelectric state to the relaxor state comparing experimental data with the spherical random-bond randomfield model (SRBRF). It found that this model predicts and is experimental verifies a glassy state at the transition temperature for E < Ec and a ferroelectric state with quench random fields for...
متن کاملPreparation and Field-Induced Electrical Properties of Perovskite Relaxor Ferroelectrics
(111)-oriented and random oriented Pb0.8Ba0.2ZrO3 (PBZ) perovskite relaxor ferroelectric thin films were fabricated on Pt(111)/TiOx/SiO2/Si substrate by sol-gel method. Nano-scaled antiferroelectric and ferroelectric two-phase coexisted in both (111)-oriented and random oriented PBZ thin film. High dielectric tunability (i = 75%, E = 560 kV/ cm ) and figure-of-merit (FOM ~ 236) at room temperat...
متن کاملPhase transitions and hygroscopic growth of aerosol particles containing humic acid and mixtures of humic acid and ammonium sulphate
The phase transitions and hygroscopic growth of two humic acid aerosols (Aldrich sodium salt and Leonardite Standard (IHSS)) and their mixtures with ammonium sulphate have been investigated using a combination of two techniques, Fourier transform infra-red (FTIR) spectroscopy and tandem differential mobility analysis (TDMA). A growth factor of 1.16 at 85% relative humidity (RH ) was found for t...
متن کاملWeak First Order Phase Transitions in Quantum Ferroelectrics
We discuss the possibility of weak first order transition in the domain of pressure induced phase transitions in a quantum ferroelectric as a consequence of order parameter fluctuations. We start with a semi-microscopic Hamiltonian, where polarization fluctuations are controlled by hydrostatic pressure via strain coupling, which above certain strength of coupling constant, kills second order tr...
متن کاملsome properties of fuzzy hilbert spaces and norm of operators
in this thesis, at first we investigate the bounded inverse theorem on fuzzy normed linear spaces and study the set of all compact operators on these spaces. then we introduce the notions of fuzzy boundedness and investigate a new norm operators and the relationship between continuity and boundedness. and, we show that the space of all fuzzy bounded operators is complete. finally, we define...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Advances in Materials
سال: 2013
ISSN: 2327-2503
DOI: 10.11648/j.am.20130205.11