{"title":"辐照对包括高熵 REBCO（HE-REBCO）在内的氧化铜超导体的影响","authors":"Kota Sakurai , Aichi Yamashita , Yoshikazu Mizuguchi , Kiyohiro Yabuuchi , Naoko Oono-Hori","doi":"10.1016/j.nme.2024.101709","DOIUrl":null,"url":null,"abstract":"<div><p>Polycrystalline specimens of copper oxide superconductors YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub>(YBCO), Y<sub>0.39</sub>Sm<sub>0.30</sub>Eu<sub>0.31</sub>Ba<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub>(ME-REBCO), Y<sub>0.18</sub>La<sub>0.24</sub>Nd<sub>0.14</sub>Sm<sub>0.14</sub>Eu<sub>0.15</sub>Gd<sub>0.15</sub>Ba<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub> (HE-REBCO) were irradiated with 1 MeV-He ions at room temperature. Magnetization measurement using superconducting quantum interference device (SQUID) and microstructure observation using transmission electron microscope (TEM) were conducted before and after irradiation. The improvement of properties in HE-REBCO and degradations in YBCO, ME-REBCO were suggested by SQUID measurement. HE-REBCO had smaller irradiation defects and volume fractions although disappearance of twin boundaries due to tetragonal transition occurred in peak-damage area as well as YBCO. These defects work as optimal flux pinning centers leading to improve properties in HEREBCO.</p></div>","PeriodicalId":56004,"journal":{"name":"Nuclear Materials and Energy","volume":"40 ","pages":"Article 101709"},"PeriodicalIF":2.3000,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2352179124001327/pdfft?md5=c725ca9885c08b5a5aec19a7d4deeb15&pid=1-s2.0-S2352179124001327-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Irradiation effects on copper oxide superconductors including high-entropy REBCO(HE-REBCO)\",\"authors\":\"Kota Sakurai , Aichi Yamashita , Yoshikazu Mizuguchi , Kiyohiro Yabuuchi , Naoko Oono-Hori\",\"doi\":\"10.1016/j.nme.2024.101709\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Polycrystalline specimens of copper oxide superconductors YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub>(YBCO), Y<sub>0.39</sub>Sm<sub>0.30</sub>Eu<sub>0.31</sub>Ba<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub>(ME-REBCO), Y<sub>0.18</sub>La<sub>0.24</sub>Nd<sub>0.14</sub>Sm<sub>0.14</sub>Eu<sub>0.15</sub>Gd<sub>0.15</sub>Ba<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub> (HE-REBCO) were irradiated with 1 MeV-He ions at room temperature. Magnetization measurement using superconducting quantum interference device (SQUID) and microstructure observation using transmission electron microscope (TEM) were conducted before and after irradiation. The improvement of properties in HE-REBCO and degradations in YBCO, ME-REBCO were suggested by SQUID measurement. HE-REBCO had smaller irradiation defects and volume fractions although disappearance of twin boundaries due to tetragonal transition occurred in peak-damage area as well as YBCO. These defects work as optimal flux pinning centers leading to improve properties in HEREBCO.</p></div>\",\"PeriodicalId\":56004,\"journal\":{\"name\":\"Nuclear Materials and Energy\",\"volume\":\"40 \",\"pages\":\"Article 101709\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2024-07-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2352179124001327/pdfft?md5=c725ca9885c08b5a5aec19a7d4deeb15&pid=1-s2.0-S2352179124001327-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Materials and Energy\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2352179124001327\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"NUCLEAR SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Materials and Energy","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2352179124001327","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}
Irradiation effects on copper oxide superconductors including high-entropy REBCO(HE-REBCO)
Polycrystalline specimens of copper oxide superconductors YBa2Cu3O7-δ(YBCO), Y0.39Sm0.30Eu0.31Ba2Cu3O7-δ(ME-REBCO), Y0.18La0.24Nd0.14Sm0.14Eu0.15Gd0.15Ba2Cu3O7-δ (HE-REBCO) were irradiated with 1 MeV-He ions at room temperature. Magnetization measurement using superconducting quantum interference device (SQUID) and microstructure observation using transmission electron microscope (TEM) were conducted before and after irradiation. The improvement of properties in HE-REBCO and degradations in YBCO, ME-REBCO were suggested by SQUID measurement. HE-REBCO had smaller irradiation defects and volume fractions although disappearance of twin boundaries due to tetragonal transition occurred in peak-damage area as well as YBCO. These defects work as optimal flux pinning centers leading to improve properties in HEREBCO.
期刊介绍：
The open-access journal Nuclear Materials and Energy is devoted to the growing field of research for material application in the production of nuclear energy. Nuclear Materials and Energy publishes original research articles of up to 6 pages in length.
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