{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,13]],"date-time":"2026-07-13T15:11:39Z","timestamp":1783955499128,"version":"3.55.0"},"reference-count":39,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2022,10,27]],"date-time":"2022-10-27T00:00:00Z","timestamp":1666828800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>In this study, an environmentally friendly sol-gel synthetic approach was used for the preparation of yttrium-doped MgFe2O4. Two series of compounds with different iron content were synthesized and A-site substitution effects were investigated. In the first series, the iron content was fixed and the charge balance was suggested to be compensated by a partial reduction of Fe3+ to Fe2+ or formation of interstitial O2\u2212 ions. For the second series of samples, the iron content was reduced in accordance with the substitution level to compensate for the excess of positive charge, which accumulates due to replacing divalent Mg2+ with trivalent Y3+ ions. Structural, morphological and magnetic properties were inspected. It was observed that single-phase compounds can only form when the substitution level reaches 20 mol% of Y3+ ions and iron content is reduced. The coercivity as well as saturation magnetization decreased with the increase in yttrium content. M\u00f6ssbauer spectroscopy was used to investigate the iron content in both tetrahedral and octahedral positions.<\/jats:p>","DOI":"10.3390\/ma15217547","type":"journal-article","created":{"date-parts":[[2022,10,27]],"date-time":"2022-10-27T22:36:17Z","timestamp":1666910177000},"page":"7547","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Sol-Gel Synthesis and Characterization of Yttrium-Doped MgFe2O4 Spinel"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5022-2515","authenticated-orcid":false,"given":"Dovydas","family":"Karoblis","sequence":"first","affiliation":[{"name":"Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4792-8650","authenticated-orcid":false,"given":"Kestutis","family":"Mazeika","sequence":"additional","affiliation":[{"name":"Center of Physical Sciences and Technology, LT-02300 Vilnius, Lithuania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rimantas","family":"Raudonis","sequence":"additional","affiliation":[{"name":"Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3574-2296","authenticated-orcid":false,"given":"Aleksej","family":"Zarkov","sequence":"additional","affiliation":[{"name":"Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9375-7226","authenticated-orcid":false,"given":"Aivaras","family":"Kareiva","sequence":"additional","affiliation":[{"name":"Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,10,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"29","DOI":"10.1016\/j.cis.2019.01.003","article-title":"Magnetic nanocarriers: Evolution of spinel ferrites for medical applications","volume":"265","author":"Amiri","year":"2019","journal-title":"Adv. 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