Please use this identifier to cite or link to this item:
doi:10.22028/D291-34885
Title: | (RE)Ba2Cu3O7−δ and the Roeser-Huber Formula |
Author(s): | Koblischka-Veneva, Anjela Koblischka, Michael Rudolf |
Language: | English |
Title: | Materials |
Volume: | 14 |
Issue: | 20 |
Publisher/Platform: | MDPI |
Year of Publication: | 2021 |
Free key words: | superconductors cuprates transition temperature Tc Roeser–Huber formula rare earths oxygen distribution flux pinning |
DDC notations: | 500 Science |
Publikation type: | Journal Article |
Abstract: | We apply the Roeser–Huber formula to the (RE)Ba2Cu3O7−δ (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, 733–736), the basic idea was described and Tc was successfully calculated for the YBa2Cu3O7−δ compound with two oxygen doping levels δ = 0.04 and 0.45, but several open questions remained. One of the problems remaining was the determination of Tc for the δ = 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– Huber 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 δTc-pinning sites being responsible for additional flux pinning and the peak effect. |
DOI of the first publication: | 10.3390/ma14206068 |
Link to this record: | urn:nbn:de:bsz:291--ds-348857 hdl:20.500.11880/31913 http://dx.doi.org/10.22028/D291-34885 |
ISSN: | 1996-1944 |
Date of registration: | 27-Oct-2021 |
Faculty: | NT - Naturwissenschaftlich- Technische Fakultät |
Department: | NT - Physik |
Professorship: | NT - Keiner Professur zugeordnet |
Collections: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
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File | Description | Size | Format | |
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materials-14-06068-v2.pdf | 1,1 MB | Adobe PDF | View/Open |
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