{"_buckets": {"deposit": "b15bf310-741b-4996-9769-0d173e0fc6bf"}, "_deposit": {"id": "922", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "922"}, "status": "published"}, "_oai": {"id": "oai:repository.dl.itc.u-tokyo.ac.jp:00000922"}, "item_2_biblio_info_7": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2016-09-13", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "11", "bibliographicVolumeNumber": "94", "bibliographic_titles": [{"bibliographic_title": "Physical Review B"}]}]}, "item_2_description_5": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "The family of hole-doped Pr-based perovskite cobaltites, Pr0.5Ca0.5CoO3 and (Pr1\u2212yREy)0.3Ca0.7CoO3 (where RE is rare earth), has recently been found to exhibit simultaneous metal-insulator, spin-state, and valence transitions. We have investigated magnetic-field-induced phase transitions of (Pr1\u2212yYy)0.7Ca0.3CoO3 by means of magnetization measurements at 4.2\u2013100 K up to an ultrahigh magnetic field of 140 T with the chemical pressure varied by y=0.0625, 0.075, 0.1. The observed magnetic-field-induced transitions were found to occur simultaneously with the metal-insulator transitions up to 100 T. The obtained magnetic-field-temperature (B\u2212T) phase diagram and magnetization curves are well analyzed by a spin-crossover model of a single ion with interion interactions. On the other hand, the chemical pressure dependence of the experimentally obtained magnetization change during the phase transition disagrees with the single-ion model when approaching low temperatures. The significant y dependence of the magnetization change at low temperatures may arise from the itinerant magnetism of Co3+ in the paramagnetic metallic phase, where the chemical pressure enhances the exchange splitting by promoting the double-exchange interaction. The observed B\u2212T phase diagrams of (Pr1\u2212yYy)0.7Ca0.3CoO3 are quite contrary to that of LaCoO3, indicating that in (Pr1\u2212yYy)0.7Ca0.3CoO3 the high-field phase possesses higher entropy than the low-field phase, whereas it is the other way around in LaCoO3.", "subitem_description_type": "Abstract"}]}, "item_2_publisher_20": {"attribute_name": "\u51fa\u7248\u8005", "attribute_value_mlt": [{"subitem_publisher": "American Physical Society"}]}, "item_2_relation_11": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "info:doi/10.1103/PhysRevB.94.115129", "subitem_relation_type_select": "DOI"}}]}, "item_2_relation_26": {"attribute_name": "\u7570\u7248\u3067\u3042\u308b", "attribute_value_mlt": [{"subitem_relation_type": "isVersionOf", "subitem_relation_type_id": {"subitem_relation_type_id_text": "http://dx.doi.org/10.1103/PhysRevB.94.115129", "subitem_relation_type_select": "URI"}}]}, "item_2_rights_12": {"attribute_name": "\u6a29\u5229", "attribute_value_mlt": [{"subitem_rights": "\u00a92016 American Physical Society"}]}, "item_2_select_14": {"attribute_name": "\u8457\u8005\u7248\u30d5\u30e9\u30b0", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_2_source_id_8": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1550235X", "subitem_source_identifier_type": "ISSN"}]}, "item_2_text_34": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7", "attribute_value_mlt": [{"subitem_text_value": "Journal Article"}]}, "item_2_text_4": {"attribute_name": "\u8457\u8005\u6240\u5c5e", "attribute_value_mlt": [{"subitem_text_value": "Institute for Solid State Physics, University of Tokyo"}, {"subitem_text_value": "Faculty of Science and Engineering, Iwate University"}]}, "item_creator": {"attribute_name": "\u8457\u8005", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Ikeda, Akihiko"}], "nameIdentifiers": [{"nameIdentifier": "3729", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Lee, Suyeon"}], "nameIdentifiers": [{"nameIdentifier": "3730", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Terashima, Taku T."}], "nameIdentifiers": [{"nameIdentifier": "3731", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Matsuda, Yasuhiro H."}], "nameIdentifiers": [{"nameIdentifier": "3732", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Tokunaga, Masashi"}], "nameIdentifiers": [{"nameIdentifier": "3733", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Naito, Tomoyuki"}], "nameIdentifiers": [{"nameIdentifier": "3734", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "\u30d5\u30a1\u30a4\u30eb\u60c5\u5831", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2017-05-30"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "PhysRevB.94.115129.pdf", "filesize": [{"value": "580.5 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 580500.0, "url": {"label": "PhysRevB.94.115129.pdf", "url": "https://repository.dl.itc.u-tokyo.ac.jp/record/922/files/PhysRevB.94.115129.pdf"}, "version_id": "f47c9d8e-0356-43e4-93c2-5a08a1fbf4e8"}]}, "item_language": {"attribute_name": "\u8a00\u8a9e", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7", "attribute_value_mlt": [{"resourcetype": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Magnetic-field-induced spin crossover of Y-doped Pr0.7Ca0.3CoO3", "item_titles": {"attribute_name": "\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_title": "Magnetic-field-induced spin crossover of Y-doped Pr0.7Ca0.3CoO3"}]}, "item_type_id": "2", "owner": "1", "path": ["9/10/11", "176/177/178"], "permalink_uri": "http://hdl.handle.net/2261/60904", "pubdate": {"attribute_name": "\u516c\u958b\u65e5", "attribute_value": "2017-01-10"}, "publish_date": "2017-01-10", "publish_status": "0", "recid": "922", "relation": {}, "relation_version_is_last": true, "title": ["Magnetic-field-induced spin crossover of Y-doped Pr0.7Ca0.3CoO3"], "weko_shared_id": 2}