A comprehensive investigation of the structural, chemical, and dielectric properties of co-doped YMnO3 multiferroic component
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F24%3APU151579" target="_blank" >RIV/00216305:26620/24:PU151579 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s00339-024-07335-8" target="_blank" >https://link.springer.com/article/10.1007/s00339-024-07335-8</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00339-024-07335-8" target="_blank" >10.1007/s00339-024-07335-8</a>
Alternative languages
Result language
angličtina
Original language name
A comprehensive investigation of the structural, chemical, and dielectric properties of co-doped YMnO3 multiferroic component
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
21001 - Nano-materials (production and properties)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Physics A: Materials Science and Processing
ISSN
0947-8396
e-ISSN
1432-0630
Volume of the periodical
130
Issue of the periodical within the volume
3
Country of publishing house
DE - GERMANY
Number of pages
18
Pages from-to
„“-„“
UT code for WoS article
001161091900001
EID of the result in the Scopus database
2-s2.0-85185099064