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Influence of iridium (Ir) doping on the structural, electrical, and dielectric properties of LuFeO3 perovskite compound
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SYSNO ASEP 0543763 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Influence of iridium (Ir) doping on the structural, electrical, and dielectric properties of LuFeO3 perovskite compound Tvůrce(i) Polat, O. (CZ)
Coskun, M. (TR)
Roupcová, Pavla (UFM-A) RID, ORCID
Sobola, D. (CZ)
Durmus, Z. (DE)
Caglar, M. (TR)
Šikola, T. (CZ)
Turut, A. (TR)Celkový počet autorů 8 Číslo článku 160282 Zdroj.dok. Journal of Alloys and Compounds. - : Elsevier - ISSN 0925-8388
Roč. 877, OCT (2021)Poč.str. 14 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova ac conductivity ; relaxation ; modulus ; frequency ; Solid-state reaction ; Orthorhombic LuFeO3, Ir doping ; Dielectric properties ; Conductivity Vědní obor RIV JG - Hutnictví, kovové materiály Obor OECD Materials engineering Způsob publikování Omezený přístup Institucionální podpora UFM-A - RVO:68081723 UT WOS 000660433800005 EID SCOPUS 85105712965 DOI 10.1016/j.jallcom.2021.160282 Anotace Rare-earth ferrites have been intensively investigated owing to their magnetic, electrical, and optical features in the literature. The present quest goals to examine the electrical properties of LuFeO3 (LFO) and LuFe1-xIrxO3 (LFIO) ceramics with different mol%, x = 0.05 and 0.10. X-ray diffractometer (XRD) method was utilized to identify the crystal nature of the obtained powders. The scanning electron microscope (SEM) was exploited to examine the surface topography of the fabricated pellets. X-ray photoelectron spectroscopy (XPS) was employed to find out the valence states of lutetium (Lu) (data is not presented here), iron (Fe), and iridium (Ir). Electrical modulus, dielectric constant, and conductivity of LFO and LFIO ceramics were detailed by dielectric/impedance spectroscopy measurements, which were performed at between 100 degrees C (173 K) up to 100 degrees C (373 K) with 20 degrees C temperature step. It was exhibited that the undoped LFO has a higher dielectric constant and conductivity than the Ir doped samples. Such a decrement in both dielectric constants and conductivity was related to i) reduction in the ratio of Fe2+ ions and ii) defects and/or distortion in the LFO structure due to Ir substitution. (C) 2021 Elsevier B.V. All rights reserved. Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2022 Elektronická adresa https://reader.elsevier.com/reader/sd/pii/S0925838821016911?token=A48DB5CB7ED696AE6B1490A87B29465551BD63F16BD5AB2BB1F261A98C1C7EE9D2FE87F017938A9CA0F1D42CC8AFE55F&originRegion=eu-west-1&originCreation=20210713132815
Počet záznamů: 1