{"created":"2023-05-15T14:57:27.523607+00:00","id":77974,"links":{},"metadata":{"_buckets":{"deposit":"9c3e1a48-5f51-4a51-b054-fa9c176c5877"},"_deposit":{"created_by":1,"id":"77974","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"77974"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00077974","sets":["1"]},"author_link":["1004409","1004408","1004418","1004412","1004410","1004415","1004411","1004422","1004423","1004424","1004414","1004416","1004420","1004421","1004417","1004413","1004419"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2019-12","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"49","bibliographicPageEnd":"19403","bibliographicPageStart":"19397","bibliographicVolumeNumber":"141","bibliographic_titles":[{"bibliographic_title":"Journal of the American Chemical Society"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"BiNi_1-x_Fe_x_O_3_の結晶構造、電荷分布、負熱膨張特性の研究を実施した。低温では極性を持ち、Bi3+_0.5(1+x)_Bi5+_0.5(1-x)_Ni2+_1-x_Fe3+_x_O_3_の電荷分布とBi3+/Bi5+の短距離秩序を示す。昇温過程における電荷移動による体積減少量は、Bi5+-Ni2+間の電荷移動に影響するFe3+への置換量xが増加すると減少する。しかし0.25<x<0.5の領域では極性-非極性転移によって負熱膨張が引き起こされ、この電荷移動と同時に起こる極性-非極性転移は負熱膨張とxに依存しない約2%の体積減少に寄与している。本研究によって世界で初めて同時に起こる2つメカニズムによる不熱膨張が観測された。","subitem_description_type":"Abstract"}]},"item_8_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"ACS 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