Synthesis and characterization of EuBa2Ca2Cu3O9−x: The influence of temperature on dielectric properties and charge transport mechanism

Özdemir, Zeynep Güven; Kılıç, Mehmet; Karabul, Yaşar; Mısırlıoğlu, Banu Süngü; Çataltepe, Özden Aslan

doi:10.1016/j.mssp.2017.02.020

Cited by 10 publications

(3 citation statements)

References 34 publications

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“…It was determined that at each temperature, the Eu-1223 sample has high dielectric constants. Also, Eu-1223 material acts as a very high dielectric material, which are greater than 103, up to 300 kHz for 408 K [22]. It was determined by dielectric measurements that (Eu 0.5 Bi 0.5 )-212 sample exhibits a higher dielectric constant and lower dielectric loss relative to (Eu 0 Bi 1 )-212.…”

Section: Dielectric Properties Of Eu-based Cuo 2 Layered Materialsmentioning

confidence: 99%

“…Copyright © 2024 IJONFEST Güven Özdemir and et al determined that Eu-1223 [22] and (Eu 0.5 Bi 0.5 )-212 [5] samples have very high dielectric constant ( ' ≥ 10 3 ), and they suggested that the materials investigated can be good candidate for next generation electronics and large scale integrated microelectronics technology (Figure 3). The effect of temperature on dielectric properties of Eu-1223 was investigated within the range of 5 Hz-13 MHz frequencies and 298 K-408 K temperatures.…”

Section: Dielectric Properties Of Eu-based Cuo 2 Layered Materialsmentioning

confidence: 99%

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Dielectric and Optical Properties of Eux(Bi1-x)Sr2CaCu2O6.5 (x=0.3 and 1) Samples

Canci Matur,

Aslan Çataltepe,

Tabanlı

2024

IJONFEST

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Eu-based copper oxide layered ceramics have some interesting dielectric properties depending on its stoichiometric ratios and elements used in ceramics. In this study, optical properties of EuSr2CaCu2O6.5 and Eu0.3Bi0.7Sr2CaCu2O6.5 samples and dielectric property of EuSr2CaCu2O6.5 sample were investigated for the first time. Negative real permittivity for EuSr2CaCu2O6+x sample was observed at temperature with 373 K and higher temperatures and below than the cross over frequency with 14 Hz. Moreover, it is determined that Eu3+ concentration in the material affects the relative emission intensity.

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Section: Dielectric Properties Of Eu-based Cuo 2 Layered Materialsmentioning

confidence: 99%

Section: Dielectric Properties Of Eu-based Cuo 2 Layered Materialsmentioning

confidence: 99%

Dielectric and Optical Properties of Eux(Bi1-x)Sr2CaCu2O6.5 (x=0.3 and 1) Samples

Canci Matur,

Aslan Çataltepe,

Tabanlı

2024

IJONFEST

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“…In general, ac conductivity mechanisms are classified into two types: hopping‐based and quantum tunneling‐based. Some of the most observed ac conductivity mechanisms are correlated barrier hopping (CBH), 27 quantum mechanical tunneling (QMT), 23 overlapping large polaron tunneling (OLPT), 28 small polaron tunneling (SPT), 29 nonoverlapping small polaron tunneling (NSPT) 30 . Besides, one material can have two or more different ac conductivity mechanisms at different temperatures 31 and frequency intervals.…”

Section: Theoreticalmentioning

confidence: 99%

Machine learning models for estimating the AC conductivity mechanism of Edirne Kufeki stone reinforced Polypyrrole composites

Eyecioğlu

2022

J of Applied Polymer Sci

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In this study, the detailed temperature and frequency-dependent (ac) conductivity analyzes of Polypyrrole/Edirne Kufeki Stone (PPy/EKS) composites have been realized by considering both experimental and Machine Learning (ML) algorithms predicted data. In this respect, the experimental ac conductivity data of pure PPy, PPy/5% EKS, PPy/10% EKS, and PPy/20% EKS composites between 1 Hz and 40 MHz at 296, 313, and 333 K temperatures have been usedfor the data set of ML. First, a benchmark study has been done for applied ML algorithms to obtain an eligible model. It is found that the Gaussian process regression (GPR) algorithm provided the best prediction performance. Since it has been observed a good conformity between the experimental and prediction data of GPR model, the ac conductivity (σ ac ) versus angular frequency (w) curves of the composites produced experimentally have been estimated for new temperature values, which were not treated experimentally. Then, the σ ac ¼ f w ð Þ curves of at temperature values have been estimated by GPR which is for the EKS composites at various contributions that have not been experimentally produced. Ultimately, the GPR algorithm developed in the present work enables us to determine the optimum EKS additive percentage, working temperature, and frequency band for the PPy polymer matrix.

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The mechanical and dielectric properties of polypropylene reinforced with BiSr2CaCu2O6.5 ceramic

Erdönmez

Özdemir

2019

Polym. Bull.

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Synthesis and characterization of EuBa2Ca2Cu3O9−x: The influence of temperature on dielectric properties and charge transport mechanism

Cited by 10 publications

References 34 publications

Dielectric and Optical Properties of Eux(Bi1-x)Sr2CaCu2O6.5 (x=0.3 and 1) Samples

Dielectric and Optical Properties of Eux(Bi1-x)Sr2CaCu2O6.5 (x=0.3 and 1) Samples

Machine learning models for estimating the AC conductivity mechanism of Edirne Kufeki stone reinforced Polypyrrole composites

The mechanical and dielectric properties of polypropylene reinforced with BiSr2CaCu2O6.5 ceramic

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