Electrical and optical characterization of Os-substituted rare-earth orthoferrite YbFeO3-γ powders
نویسندگان
چکیده
The electrical properties of Os-doped YbFeO3 (YbFO) powders prepared by solid-state reaction have been studied Impedance Spectrometer/Impedance Spectrometer. SEM, XPS and Raman spectroscopy were utilized for understanding chemical structured analysis the synthesized compounds. SEM images revealed void nature pellets. Furthermore, studies exhibited that Yb has 3 + valance state. It is also oxygen vacancies concentration drops as Os doping level raises analysis. frequency dependency loss-tan(δ) examination demonstrated 5 mol% Os-substituted sample lowest values at high regions 100 °C. realized compound exhibits highest resistivity among samples. unveiled samples similar space group. In addition, optical band gap was extracted via utilizing Kubelka–Munk technique. YbFO slightly increases dopant ratio advances.
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ژورنال
عنوان ژورنال: Applied Physics A
سال: 2021
ISSN: ['1432-0630', '0947-8396']
DOI: https://doi.org/10.1007/s00339-020-04182-1