{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,9]],"date-time":"2026-04-09T14:23:29Z","timestamp":1775744609236,"version":"3.50.1"},"reference-count":80,"publisher":"MDPI AG","issue":"20","license":[{"start":{"date-parts":[[2021,10,14]],"date-time":"2021-10-14T00:00:00Z","timestamp":1634169600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001665","name":"Agence Nationale de la Recherche","doi-asserted-by":"publisher","award":["ANR-17-CE05-0030"],"award-info":[{"award-number":["ANR-17-CE05-0030"]}],"id":[{"id":"10.13039\/501100001665","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["Ko2323-10"],"award-info":[{"award-number":["Ko2323-10"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>We apply the Roeser\u2013Huber formula to the (RE)Ba2Cu3O7\u2212\u03b4 (REBCO with RE= rare earths) high-Tc superconducting material class to calculate the superconducting transition temperature, Tc, using the electronic configuration and the crystallographic data. In a former publication (H. P. Roeser et al., Acta Astronautica 2008, 62, 733\u2013736), the basic idea was described and Tc was successfully calculated for the YBa2Cu3O7\u2212\u03b4 compound with two oxygen doping levels \u03b4= 0.04 and 0.45, but several open questions remained. One of the problems remaining was the determination of Tc for the \u03b4= 0.45 sample, which can be explained regarding the various oxygen arrangements being possible within the copper-oxide plane. Having established this proper relation and using the various crystallographic data on the REBCO system available in the literature, we show that the Roeser\u2013Huber equation is capable to calculate the Tc of the various REBCO compounds and the effects of strain and pressure on Tc, when preparing thin film samples. Furthermore, the characteristic length, x, determined for the REBCO systems sheds light on the size of the \u03b4Tc-pinning sites being responsible for additional flux pinning and the peak effect.<\/jats:p>","DOI":"10.3390\/ma14206068","type":"journal-article","created":{"date-parts":[[2021,10,14]],"date-time":"2021-10-14T22:42:18Z","timestamp":1634251338000},"page":"6068","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["(RE)Ba2Cu3O7\u2212\u03b4 and the Roeser-Huber Formula"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7409-671X","authenticated-orcid":false,"given":"Anjela","family":"Koblischka-Veneva","sequence":"first","affiliation":[{"name":"Experimental Physics, Saarland University, P.O. Box 151150, D-66041 Saarbr\u00fccken, Germany"},{"name":"Shibaura Research Laboratories, Shibaura Institute of Technology, 1-3-5 Toyosu, Koto-ku, Tokyo 135-8548, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4924-341X","authenticated-orcid":false,"given":"Michael Rudolf","family":"Koblischka","sequence":"additional","affiliation":[{"name":"Experimental Physics, Saarland University, P.O. Box 151150, D-66041 Saarbr\u00fccken, Germany"},{"name":"Shibaura Research Laboratories, Shibaura Institute of Technology, 1-3-5 Toyosu, Koto-ku, Tokyo 135-8548, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,10,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"331","DOI":"10.1103\/PhysRev.167.331","article-title":"Transition Temperature of Strong-Coupled Superconductors","volume":"167","author":"McMillan","year":"1968","journal-title":"Phys. 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