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POLAT, Ö. COSKUN, M. COSKUN, F. ZLÁMAL, J. DURMUS, Z. CAGLAR, M. TURUT, A.
Original Title
Influence of transition element Os substitution on the structural and electrical features of perovskite structure LaCr1-xOsxO3
Type
journal article in Web of Science
Language
English
Original Abstract
This study aims to investigate the electrical properties of LCO compound under Os doping into Cr sites with different substitution levels. The crystalline structure of LaCrO3 and LaCr1-xOsxO3 (LCOO) (x = 0.01, 0.03, 0.05) was inspected with X-ray diffractometer (XRD). Scanning electron microscope (SEM) was utilized to observe the particle/powder morphology. Moreover, the valence states of the elements were investigated by X-ray photoelectron spectroscopy (XPS). The electrical modulus, dielectric constant and conductivity of the LCO and LCOO pellets were detailed by dielectric/impedance spectroscopy studies at different frequencies and temperatures. The temperature dependent power law exponent, calculated through conductivity versus temperature measurements, exhibited that different conduction models are needed to consider for the conductivity mechanism. Furthermore, it has been realized that the activation energies determined from electrical modulus and dc conductivity are close to each other.
Keywords
LaCrO3; Os doping; Solid-state method; Electrical modulus; Dielectric constant; Conductivity
Authors
POLAT, Ö.; COSKUN, M.; COSKUN, F.; ZLÁMAL, J.; DURMUS, Z.; CAGLAR, M.; TURUT, A.
Released
1. 4. 2020
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Location
OXFORD
ISBN
1873-4227
Periodical
MATERIALS RESEARCH BULLETIN
Year of study
124
Number
1
State
United States of America
Pages from
Pages to
18
Pages count
URL
https://www.sciencedirect.com/science/article/pii/S0025540819316009?via%3Dihub
BibTex
@article{BUT168913, author="Özgür {Polat} and Mustafa {Coskun} and F.M. {Coskun} and Jakub {Zlámal} and Zerrin Gurel {Durmus} and Mujdat {Caglar} and Abduelmecit {Turut}", title="Influence of transition element Os substitution on the structural and electrical features of perovskite structure LaCr1-xOsxO3", journal="MATERIALS RESEARCH BULLETIN", year="2020", volume="124", number="1", pages="1--18", doi="10.1016/j.materresbull.2019.110759", issn="1873-4227", url="https://www.sciencedirect.com/science/article/pii/S0025540819316009?via%3Dihub" }