Electrical and optical characterization of Os-substituted rare-earth orthoferrite YbFeO3-gamma powders
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F21%3APU140821" target="_blank" >RIV/00216305:26620/21:PU140821 - isvavai.cz</a>
Výsledek na webu
<a href="https://link.springer.com/article/10.1007%2Fs00339-020-04182-1" target="_blank" >https://link.springer.com/article/10.1007%2Fs00339-020-04182-1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00339-020-04182-1" target="_blank" >10.1007/s00339-020-04182-1</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Electrical and optical characterization of Os-substituted rare-earth orthoferrite YbFeO3-gamma powders
Popis výsledku v původním jazyce
The electrical properties of Os-doped YbFeO3 (YbFO) powders prepared by solid-state reaction have been studied by Impedance Spectrometer/Impedance Spectrometer. SEM, XPS and Raman spectroscopy were utilized for understanding chemical and structured analysis of the synthesized compounds. SEM images have revealed the void nature of the pellets. Furthermore, XPS studies have exhibited that Yb has 3+valance state. It is also revealed that the oxygen vacancies concentration drops as the Os doping level raises by XPS analysis. The frequency dependency of loss-tan(delta) examination has demonstrated that the 5 mol% Os-substituted sample has the lowest loss-tan(delta) values at high frequency regions at 100 degrees C. It has been also realized that the 5 mol% Os-doped compound exhibits the highest resistivity among the samples. Raman spectroscopy examination has unveiled that the samples have similar space group. In addition, the optical band gap of the synthesized powders was also extracted via utilizing the Kubelka-Munk technique. It was realized that the band gap of YbFO slightly increases as the Os dopant ratio advances.
Název v anglickém jazyce
Electrical and optical characterization of Os-substituted rare-earth orthoferrite YbFeO3-gamma powders
Popis výsledku anglicky
The electrical properties of Os-doped YbFeO3 (YbFO) powders prepared by solid-state reaction have been studied by Impedance Spectrometer/Impedance Spectrometer. SEM, XPS and Raman spectroscopy were utilized for understanding chemical and structured analysis of the synthesized compounds. SEM images have revealed the void nature of the pellets. Furthermore, XPS studies have exhibited that Yb has 3+valance state. It is also revealed that the oxygen vacancies concentration drops as the Os doping level raises by XPS analysis. The frequency dependency of loss-tan(delta) examination has demonstrated that the 5 mol% Os-substituted sample has the lowest loss-tan(delta) values at high frequency regions at 100 degrees C. It has been also realized that the 5 mol% Os-doped compound exhibits the highest resistivity among the samples. Raman spectroscopy examination has unveiled that the samples have similar space group. In addition, the optical band gap of the synthesized powders was also extracted via utilizing the Kubelka-Munk technique. It was realized that the band gap of YbFO slightly increases as the Os dopant ratio advances.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Návaznosti výsledku
Projekt
<a href="/cs/project/LM2018110" target="_blank" >LM2018110: Výzkumná infrastruktura CzechNanoLab</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Applied Physics A: Materials Science and Processing
ISSN
0947-8396
e-ISSN
1432-0630
Svazek periodika
127
Číslo periodika v rámci svazku
1
Stát vydavatele periodika
DE - Spolková republika Německo
Počet stran výsledku
11
Strana od-do
1-11
Kód UT WoS článku
000606432000006
EID výsledku v databázi Scopus
2-s2.0-85098526983