{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T02:00:54Z","timestamp":1760234454692,"version":"build-2065373602"},"reference-count":30,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2021,5,22]],"date-time":"2021-05-22T00:00:00Z","timestamp":1621641600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004281","name":"Narodowe Centrum Nauki","doi-asserted-by":"publisher","award":["N204 151940"],"award-info":[{"award-number":["N204 151940"]}],"id":[{"id":"10.13039\/501100004281","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100005357","name":"Agent\u00fara na Podporu V\u00fdskumu a V\u00fdvoja","doi-asserted-by":"publisher","award":["APVV-14-0547"],"award-info":[{"award-number":["APVV-14-0547"]}],"id":[{"id":"10.13039\/501100005357","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>The new series of single-crystalline chromium selenides, Ta-doped ZnCr2Se4, was synthesised by a chemical vapour transport method to determine the impact of a dopant on the structural and thermodynamic properties of the parent compound. We present comprehensive investigations of structural, electrical transport, magnetic, and specific heat properties. It was expected that a partial replacement of Cr ions by a more significant Ta one would lead to a change in direct magnetic interactions between Cr magnetic moments and result in a change in the magnetic ground state and electric transport properties of the ZnCr2\u2212xTaxSe4 (x = 0.05, 0.06, 0.07, 0.08, 0.1, 0.12) system. We found that all the elements of the cubic system had a cubic spinel structure; however, the doping gain linearly increased the ZnCr2\u2212xTaxSe4 unit cell volume. Doping with tantalum did not significantly change the semiconductor and magnetic properties of ZnCr2Se4. For all studied samples (0 \u2264 x \u2264 0.12), an antiferromagnetic order (AFM) below TN~22 K was observed. However, a small amount of Ta significantly reduced the second critical field (Hc2) from 65 kOe for x = 0.0 (ZnCr2Se4 matrix) up to 42.2 kOe for x = 0.12, above which the spin helical system changed to ferromagnetic (FM). The Hc2 reduction can lead to strong competition among AFM and FM interactions and spin frustration, as the specific heat under magnetic fields H &lt; Hc2 shows a strong field decrease in TN.<\/jats:p>","DOI":"10.3390\/ma14112749","type":"journal-article","created":{"date-parts":[[2021,5,23]],"date-time":"2021-05-23T23:59:03Z","timestamp":1621814343000},"page":"2749","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Study of the Structure, Magnetic, Thermal and Electrical Characterisation of ZnCr2Se4: Ta Single Crystals Obtained by Chemical Vapour Transport"],"prefix":"10.3390","volume":"14","author":[{"given":"Izabela","family":"Jendrzejewska","sequence":"first","affiliation":[{"name":"Institute of Chemistry, University of Silesia in Katowice, 40-007 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tadeusz","family":"Gro\u0144","sequence":"additional","affiliation":[{"name":"Institute of Physics, University of Silesia in Katowice, 40-007 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Piotr","family":"Kwapuli\u0144ski","sequence":"additional","affiliation":[{"name":"Institute of Materials Science, University of Silesia in Katowice, 40-007 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joachim","family":"Kusz","sequence":"additional","affiliation":[{"name":"Institute of Physics, University of Silesia in Katowice, 40-007 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ewa","family":"Pietrasik","sequence":"additional","affiliation":[{"name":"Institute of Chemistry, University of Silesia in Katowice, 40-007 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tomasz","family":"Goryczka","sequence":"additional","affiliation":[{"name":"Institute of Materials Science, University of Silesia in Katowice, 40-007 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bogdan","family":"Sawicki","sequence":"additional","affiliation":[{"name":"Institute of Physics, University of Silesia in Katowice, 40-007 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5221-7338","authenticated-orcid":false,"given":"Andrzej","family":"\u015alebarski","sequence":"additional","affiliation":[{"name":"Institute of Physics, University of Silesia in Katowice, 40-007 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marcin","family":"Fija\u0142kowski","sequence":"additional","affiliation":[{"name":"Institute of Physics, University of Silesia in Katowice, 40-007 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2003-9052","authenticated-orcid":false,"given":"Josef","family":"Jampilek","sequence":"additional","affiliation":[{"name":"Department of Analitycal Chemistry, Faculty of Natural Sciences, Comenius University, 842 15 Bratislava, Slovakia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Henryk","family":"Duda","sequence":"additional","affiliation":[{"name":"Institute of Physics, University of Silesia in Katowice, 40-007 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,5,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"67","DOI":"10.1007\/s100190100133","article-title":"Thermoelectric properties of Chalcogenides with Spinel Structure","volume":"5","author":"Snyder","year":"2001","journal-title":"Mat. 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