Publication detail

A comprehensive investigation of the structural, chemical, and dielectric properties of co-doped YMnO3 multiferroic component

Polat, O. Coskun, M. Yildirim, Y. Coskun, FM. Durmus, Z. Sen, C. Caglar, Y. Caglar, M. Turut, A.

Original Title

A comprehensive investigation of the structural, chemical, and dielectric properties of co-doped YMnO3 multiferroic component

Type

journal article in Web of Science

Language

English

Original Abstract

The solid-state reaction technique was employed to synthesize compounds of YMnO3 (YMO) and YMn1-xCoxO3 (YMCO) with various Co doping levels (x = 0.01, 0.10, 0.20, and 0.40), where Co atoms partially substituted Mn sites. XRD studies confirmed the presence of two phases, YMO and Y0.98CoO3 (YCO), for doping ratios above x = 0.10. Additionally, an increase in crystalline size was observed with cobalt substitution. Surface characteristics of synthesized pellets were examined using scanning electron microscopy (SEM), revealing a less porous structure with cobalt doping. XPS analysis elucidated valence states, showing the presence of both Mn3+ and Mn4+, as well as Co2+ and Co3+. The x = 0.20 and 0.40 Co-doped samples exhibited lower grain and grain boundary energies compared to other samples, such as a decrease from 0.556 eV (undoped) to 0.195 eV (x = 0.20). Moreover, the dielectric constants of x = 0.20 and 0.40 cobalt-doped samples (around 320) significantly surpassed the undoped sample (around 22) at 10(6) Hz and 100 degrees C. The x = 0.20 cobalt-doped sample demonstrated the highest conductivity at 100 degrees C and 10(6) Hz (31 x 10(-4) S/cm). FT-IR analysis provided insights into vibration and bending modes, and frequency- and temperature-dependent electrical features were investigated. It was observed that a single conduction model is insufficient to fully explain the conduction mechanism in these samples.

Keywords

YMnO3; Co doping; Solid-state reaction; Dielectric constant; Conductivity

Authors

Polat, O.; Coskun, M.; Yildirim, Y.; Coskun, FM.; Durmus, Z.; Sen, C.; Caglar, Y.; Caglar, M.; Turut, A.

Released

1. 3. 2024

Publisher

SPRINGER HEIDELBERG

Location

HEIDELBERG

ISBN

1432-0630

Periodical

Applied Physics A: Materials Science and Processing

Year of study

130

Number

3

State

Federal Republic of Germany

Pages count

18

URL

https://link.springer.com/article/10.1007/s00339-024-07335-8

BibTex

@article{BUT188917,
  author="Polat, O. and Coskun, M. and Yildirim, Y. and Coskun, FM. and Durmus, Z. and Sen, C. and Caglar, Y. and Caglar, M. and Turut, A.",
  title="A comprehensive investigation of the structural, chemical, and dielectric properties of co-doped YMnO3 multiferroic component",
  journal="Applied Physics A: Materials Science and Processing",
  year="2024",
  volume="130",
  number="3",
  pages="18",
  doi="10.1007/s00339-024-07335-8",
  issn="1432-0630",
  url="https://link.springer.com/article/10.1007/s00339-024-07335-8"
}