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Consideration of Magnetic Flux Distribution in Multi−Filamented YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7−δ</sub> Films by Controlling Crystal Array Using Surface−Modified Substrate
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Large direct currents can flow through REBa2Cu3O7−δ (REBCO) wires without energy loss because of zero resistance. However, they suffer from alternating current (AC) loss. Here, a multifilament is produced by creating areas with disordered YBa2Cu3O7−δ (YBCO) using the metal−organic deposition method on SrTiO3 substrates with Zr patterning. YBCO crystal orientation without Zr patterning was ordered, whereas it was disordered in the sample with Zr patterning. Additionally, controlling the YBCO crystal array correlated with superconductivity and enabled it to be a multifilament. Therefore, this method can realize AC loss reduction.
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- 16/02/2024
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- Author's original (Preprint)
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EUCAS_paper_hiroki_fujimoto(最終修正版).pdf | 801 KB | MDR Open |
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