Local Structure of Y1-xCaxBa2Cu4O8 Determined by XAFS

Name: Work Video:
Duration: 3 min 30 s
Description: The local structure of YBa 2 Cu 4 O 8 doped with Ca was studied by extended X-ray absorption fine structure (EXAFS) analysis. X-ray absorption measurements at the Ca K -edge indicate that Ca 2+ ions substitute for Y 3+ ions and are coordinated to eight oxide ions with a Ca–O distance of about 2.37 Å. The local structures around Ba and Cu atoms are also reported.
Hironobu Maeda; Tamotsu Fujimoto; Setsuo Kashino; Yoshihiro Kubozono; Shūichi Emura; Takatoshi Murata; Fujio Izumi; Yu Yamada; Takehiko Matsumoto; Yasuharu Kodama
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Okayama 700, Japan'], 'affiliations': [{'raw_affiliation_string': 'Faculty of Science, Okayama University, 3-1 Tsushima, Okayama 700, Japan', 'institution_ids': ['https://openalex.org/I136446963']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5108568281', 'display_name': 'Tamotsu Fujimoto', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I136446963', 'display_name': 'Okayama University of Science', 'ror': 'https://ror.org/05aevyc10', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I136446963']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Tamotsu Fujimoto', 'raw_affiliation_strings': ['Faculty of Science, Okayama University, 3-1 Tsushima, Okayama 700, Japan'], 'affiliations': [{'raw_affiliation_string': 'Faculty of Science, Okayama University, 3-1 Tsushima, Okayama 700, Japan', 'institution_ids': ['https://openalex.org/I136446963']}]}, {'author_position': 'middle', 'author': {'id': 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['ISIR, Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567, Japan'], 'affiliations': [{'raw_affiliation_string': 'ISIR, Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567, Japan', 'institution_ids': ['https://openalex.org/I98285908']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5073474559', 'display_name': 'Takatoshi Murata', 'orcid': 'https://orcid.org/0000-0003-2759-6070'}, 'institutions': [{'id': 'https://openalex.org/I4210129581', 'display_name': 'Kyoto University of Education', 'ror': 'https://ror.org/03zhhr656', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I4210129581']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Takatoshi Murata', 'raw_affiliation_strings': ['Kyoto University of Education, Fushimi-ku, Kyoto 612, Japan'], 'affiliations': [{'raw_affiliation_string': 'Kyoto University of Education, Fushimi-ku, Kyoto 612, Japan', 'institution_ids': ['https://openalex.org/I4210129581']}]}, 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