Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.13091/875
Title: | Effect of Ho substitution on structural, magnetic and magnetocaloric properties of Co(CrFe)O-4 | Authors: | Kıvrak, Burak Gülkesen, Semiramis Ayaş, Ali Osman Akyol, Mustafa Ekicibil, Ahmet |
Keywords: | Rare-Earth Substitution Negative Magnetization Ferrite Nanoparticles Carbon-Monoxide Gas Sensor Cobalt Strain Nd Er |
Publisher: | SPRINGER | Abstract: | In this study, structural, magnetic and magnetocaloric properties of Ho-substituted Co(CrFe)O-4 spinel compounds produced by the sol-gel method were investigated. The Ho concentration in Co(CrFe)O-4 spinel structure was changed from 0 to 20% by 5% steps. It is observed that the Ho3+ ions create a new phase HoCrO3/HoFeO3 in the host spinel lattice. SEM images of samples indicate that the average particle size increases with Ho content. The paramagnetic to ferro-/ferrimagnetic phase transition temperature increases from 312 to 344 K with Ho content. While the fluctuation in saturation magnetization of samples was detected at low temperature, it almost becomes a linear change with the Ho content. The maximum magnetic entropy change under 7 T magnetic field was found as - 1.39, - 1.50, - 1.20, - 0.98 and - 0.91 J/kgK for Ho-free, 5, 10, 15 and 20 wt% Ho content in CoCrFeO4 spinel structure, respectively. | URI: | https://doi.org/10.1007/s10854-021-06125-9 https://hdl.handle.net/20.500.13091/875 |
ISSN: | 0957-4522 1573-482X |
Appears in Collections: | Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections |
Files in This Item:
File | Size | Format | |
---|---|---|---|
s10854-021-06125-9.pdf Until 2030-01-01 | 6.17 MB | Adobe PDF | View/Open Request a copy |
CORE Recommender
Page view(s)
154
checked on Sep 30, 2024
Download(s)
10
checked on Sep 30, 2024
Google ScholarTM
Check
Altmetric
Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.