scholarly journals Structural and electrical properties of layered perovskite type Pr2Ti2O7: experimental and theoretical investigations

2015 ◽  
Vol 3 (17) ◽  
pp. 4570-4584 ◽  
Author(s):  
Sadequa J. Patwe ◽  
Vasundhara Katari ◽  
Nilesh P. Salke ◽  
Sudhanshu K. Deshpande ◽  
Rekha Rao ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Electrical Properties ◽  
Spectroscopic Studies ◽  
Layered Perovskite ◽  
Raman Spectroscopic ◽  
Structural And Electrical Properties ◽  
Theoretical Investigations ◽  
Higher Temperature ◽  
Perovskite Type

In this communication we report the details of the structural and thermal properties of monoclinic layered perovskite type Pr2Ti2O7 (PTO) using ambient to higher temperature XRD and Raman spectroscopic studies.

Non-Stoichiometry and Structure of SrCe1-xYbxO3 Perovskite-Type Oxides

1996 ◽  
Vol 453 ◽  
Author(s):  
Igor Kosacki ◽  
Mark Shumsky ◽  
Harlan U. Anderson
Keyword(s):  
Electrical Conductivity ◽  
Electrical Properties ◽  
Charge Carrier ◽  
Structural Properties ◽  
Electrical Transport ◽  
Structural Disorder ◽  
X Ray Diffraction ◽  
X Ray ◽  
Structural And Electrical Properties ◽  
Perovskite Type

AbstractThe structural and electrical properties of SrCe1-xYbxO3 ceramics have been studied as a function of temperature and Yb-concentration using x-ray diffraction and impedance techniques. The influence of Yb-dopants on electrical transport and structural disorder has been studied. A correlation between the structural properties, electrical conductivity is observed and discussed. These measurements allow us to determine the mechanism of charge carrier compensation and also the concentration and mobility of the electrical species.

Synthesis, characterization and phase transitions in the inorganic–organic layered perovskite-type hybrids [(C n H2n + 1NH3)2PbI4], n = 4, 5 and 6

2007 ◽  
Vol 63 (5) ◽  
pp. 735-747 ◽  
Author(s):  
David G. Billing ◽  
Andreas Lemmerer
Keyword(s):  
Phase Transition ◽  
Phase Transitions ◽  
Layered Perovskite ◽  
Temperature Phase ◽  
Two Phase ◽  
Structural Details ◽  
Temperature Phase Transition ◽  
Higher Temperature ◽  
First Order Phase ◽  
Perovskite Type

Three inorganic–organic layered perovskite-type hybrids of the general formula [(C n H2n + 1NH3)2PbI4], n = 4, 5 and 6, display a number of reversible first-order phase transitions in the temperature range from 256 to 393 K. [(C4H9NH3)2PbI4] has a single phase transition, [(C5H11NH3)2PbI4] has two phase transitions and [(C6H13NH3)2PbI4] has three phase transitions. In all three cases, the lowest-temperature phase transition is thermochromic and the crystals change colour from yellow in their lowest-temperature phase to orange in their higher-temperature phase for [(C4H9NH3)2PbI4] and [(C6H13NH3)2PbI4], and from orange to red for [(C5H11NH3)2PbI4]. The structural details associated with this phase transition have been investigated via single-crystal X-ray diffraction, SC-XRD, for all three compounds.

Electrical properties of layered perovskite-type palladium oxides

2008 ◽  
Vol 148 (1-3) ◽  
pp. 65-68 ◽  
Author(s):  
S. Ayukawa ◽  
M. Kato ◽  
T. Noji ◽  
Y. Koike
Keyword(s):  
Electrical Properties ◽  
Layered Perovskite ◽  
Palladium Oxides ◽  
Perovskite Type

Nanostructural and electrical properties of LA0.5SR0.5CoO3

2017 ◽  
Vol 31 (04) ◽  
pp. 1750015 ◽  
Author(s):  
A. Bahari ◽  
A. Ramzannezhad ◽  
D. Shajari ◽  
H. Najafi
Keyword(s):  
Electrical Properties ◽  
Carrier Mobility ◽  
Sol Gel ◽  
X Ray ◽  
Structural And Electrical Properties ◽  
Gap Characteristics ◽  
Ferroelectric Memories ◽  
Piezoelectric Behavior ◽  
Perovskite Type ◽  
Scanning Electron

A group of ABO3 perovskite-type oxides is currently under intensive studies for their potential as chemical sensing, ferroelectric memories, gas separation and computer devices. This group includes La[Formula: see text]Sr[Formula: see text]CoO3 (LSCO). In the present work, we have synthesized LSCO samples by using the sol–gel method and studied their nano structural and electrical properties with using the scanning electron microscopy (SEM), energy dispersive X-ray (EDX), Current density–voltage ([Formula: see text]–[Formula: see text]) and Fourier transform infrared spectroscopy (FTIR) techniques. We synthesized nanoparticles with diameters between 50 and 100 nm by calcination of the pulverized gel powders, and then studied its structure. The band gap characteristics of the La[Formula: see text]Sr[Formula: see text]CoO3 structure were also analyzed. The obtained results show that La[Formula: see text]Sr[Formula: see text]CoO3 with favorable carrier mobility ([Formula: see text] cm2v[Formula: see text]s[Formula: see text]) and dielectric constant (16) exhibits a variety of interesting physical properties which include ferroelectric, dielectric, pyroelectric and piezoelectric behavior.

Structural and Electrical Properties of Lanthanide Substituted-Bismuth Titanate Prepared by Low-Temperature Combustion Synthesis

2012 ◽  
Vol 545 ◽  
pp. 279-284
Author(s):  
Umar Al Amani Azlan ◽  
Srimala Sreekantan ◽  
Ahmad Fauzi Mohd Noor ◽  
Khairunisak Abd Razak ◽  
Satoshi Tanaka ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Tetragonal Symmetry ◽  
Layered Perovskite ◽  
Low Temperature Combustion ◽  
X Ray Diffraction ◽  
Spectra Analysis ◽  
Structural And Electrical Properties ◽  
Temperature Combustion ◽  
Layered Perovskite Structure ◽  
Large Remanent Polarization

This paper elucidates the structural and electrical properties of Bi4Ti3O12 (BIT), Bi3.25Nd0.75Ti3O12 (BNT075) and Bi3.25La0.75Ti3O12 (BLT075) compounds that were primarily prepared by a novel combustion route at temperature as low as 300°C. Single crystalline phase of bismuth-layered perovskite structure was obtained directly after combustion without calcination. X-ray diffraction and Raman spectra analysis showed the phase transition from orthorhombic to tetragonal symmetry with substituting compounds. Compared to BIT, the Curie temperature at maximum dielectric peak of BNT075 and BLT075 decreased to lower values of 434°C and 365°C, respectively. The loss tangen for corresponding substitution compounds were 5 times lower than that of BIT. Besides, BNT075 resulted in large remanent polarization (2Pr) and coercive field (Ec) values of 19µC/cm2 and 45kV/cm, respectively, while 17.6µC/cm2 and 42kV/cm for BLT075.

Structural and Electrical Properties of Thermally Evaporated SnxSe1-x Thin Films

2011 ◽  
Vol 3 (10) ◽  
pp. 1-4 ◽  
Author(s):  
Bushra A Hasan ◽  
◽  
Ghuson H Mohamed ◽  
Amer A Ramadhan
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Structural And Electrical Properties
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