{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,23]],"date-time":"2026-06-23T04:09:39Z","timestamp":1782187779943,"version":"3.54.5"},"reference-count":33,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2022,10,28]],"date-time":"2022-10-28T00:00:00Z","timestamp":1666915200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100006769","name":"RUSSIAN SCIENCE FOUNDATION","doi-asserted-by":"publisher","award":["21-12-00394"],"award-info":[{"award-number":["21-12-00394"]}],"id":[{"id":"10.13039\/501100006769","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>In the stoichiometric iron-based superconductor EuRbFe4As4, superconductivity coexists with a long-range magnetic ordering in Eu layers. Using high-resolution transmission electron microscopy (HRTEM), we observed an atomic structure of as-grown EuRbFe4As4 crystals. HRTEM shows that crystals have two-dimensional intrinsic nanoinclusions established to be the RbFe2As2 (122) phase with a volume fraction of ~5.6%. In contrast with the CaKFe4As4 compound, similar inclusions are not superconducting down to 2 K, and no second magnetization peak was observed in the magnetization measurements at low temperature with B \u2016 ab. We show that the non-superconducting 122 phase nanoinclusions could act as 2D pinning centers.<\/jats:p>","DOI":"10.3390\/nano12213801","type":"journal-article","created":{"date-parts":[[2022,10,30]],"date-time":"2022-10-30T09:01:42Z","timestamp":1667120502000},"page":"3801","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Synthesis and HRTEM Investigation of EuRbFe4As4 Superconductor"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8236-2993","authenticated-orcid":false,"given":"Alena Yu.","family":"Degtyarenko","sequence":"first","affiliation":[{"name":"V.L. Ginzburg Centre for High-Temperature Superconductivity and Quantum Materials, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 53, Leninsky Ave., Moscow 119991, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Igor A.","family":"Karateev","sequence":"additional","affiliation":[{"name":"National Research Centre \u201cKurchatov Institute\u201d, 1, Kurchatov Sq, Moscow 123182, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3045-1112","authenticated-orcid":false,"given":"Alexey V.","family":"Ovcharov","sequence":"additional","affiliation":[{"name":"National Research Centre \u201cKurchatov Institute\u201d, 1, Kurchatov Sq, Moscow 123182, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vladimir A.","family":"Vlasenko","sequence":"additional","affiliation":[{"name":"V.L. Ginzburg Centre for High-Temperature Superconductivity and Quantum Materials, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 53, Leninsky Ave., Moscow 119991, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1116-0897","authenticated-orcid":false,"given":"Kirill S.","family":"Pervakov","sequence":"additional","affiliation":[{"name":"V.L. Ginzburg Centre for High-Temperature Superconductivity and Quantum Materials, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 53, Leninsky Ave., Moscow 119991, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,10,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"987","DOI":"10.1103\/PhysRevLett.38.987","article-title":"Destruction of superconductivity at the onset of long-range magnetic order in the compound ErRh4B4","volume":"38","author":"Fertig","year":"1977","journal-title":"Phys. Rev. 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