WEKO3
AND
アイテム
{"_buckets": {"deposit": "c42270f8-4462-4f40-96bc-c6a06bc551a6"}, "_deposit": {"id": "53730", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "53730"}, "status": "published"}, "_oai": {"id": "oai:tsukuba.repo.nii.ac.jp:00053730"}, "item_5_biblio_info_6": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2008-03", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "3", "bibliographicPageStart": "034712", "bibliographicVolumeNumber": "77", "bibliographic_titles": [{}, {"bibliographic_title": "Journal of the Physical Society of Japan", "bibliographic_titleLang": "en"}]}]}, "item_5_description_4": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "We show that spin vortex excitations in a two-dimensional half-filled antiferromagnetic insulator are accompanied by loop currents; they are the collective flow of electrons generated by a fictitious magnetic field, where the field arises from a phase factor that ensures the single-valuedness of wave functions for electron hopping motion. We study effectively half-filled states of a U \u226b t Hubbard model in which all holes added to the exactly half-filled antiferromagnetic insulator become self-trapped polarons. Using the perturbation theory, we demonstrate that loop currents arise when spin vortices are created and partially retrieve the itineracy of electrons in the upper Hubbard band. We also perform mean-field calculations to gain qualitative insights on the loop current state using parameters appropriate for cuprate superconductors. It is shown that a collection of loop currents creates a large current flow region or a \u201criver\u201d of current. A calculated ARPES profile exhibits a Fermi arc feature seen in cuprates when an extended loop current region is present; thus, it is suggested that such a current region may be the origin of the Fermi arc. The elastic neutron scattering cross section profiles are also calculated and a splitting of peaks that resembles experimental results is obtained.", "subitem_description_type": "Abstract"}]}, "item_5_publisher_27": {"attribute_name": "\u51fa\u7248\u8005", "attribute_value_mlt": [{"subitem_publisher": "The Physical Society of Japan"}]}, "item_5_relation_11": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1143/JPSJ.77.034712", "subitem_relation_type_select": "DOI"}}]}, "item_5_rights_12": {"attribute_name": "\u6a29\u5229", "attribute_value_mlt": [{"subitem_rights": "\u00a92008 The Physical Society of Japan"}]}, "item_5_select_15": {"attribute_name": "\u8457\u8005\u7248\u30d5\u30e9\u30b0", "attribute_value_mlt": [{"subitem_select_item": "author"}]}, "item_5_source_id_7": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0031-9015", "subitem_source_identifier_type": "ISSN"}]}, "item_5_source_id_9": {"attribute_name": "\u66f8\u8a8c\u30ec\u30b3\u30fc\u30c9ID", "attribute_value_mlt": [{"subitem_source_identifier": "AA00704814", "subitem_source_identifier_type": "NCID"}]}, "item_creator": {"attribute_name": "\u8457\u8005", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "\u5c0f\u6cc9, \u88d5\u5eb7"}, {"creatorName": "\u30b3\u30a4\u30ba\u30df, \u30d2\u30ed\u30e4\u30b9", "creatorNameLang": "ja-Kana"}, {"creatorName": "KOIZUMI, Hiroyasu", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "204265", "nameIdentifierScheme": "WEKO"}, {"nameIdentifier": "60240959", "nameIdentifierScheme": "e-Rad", "nameIdentifierURI": "https://nrid.nii.ac.jp/ja/nrid/1000060240959"}, {"nameIdentifier": "0000000777", "nameIdentifierScheme": "\u7b51\u6ce2\u5927\u5b66\u7814\u7a76\u8005\u7dcf\u89a7", "nameIdentifierURI": "http://trios.tsukuba.ac.jp/researcher/0000000777"}]}]}, "item_files": {"attribute_name": "\u30d5\u30a1\u30a4\u30eb\u60c5\u5831", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2019-12-09"}], "displaytype": "detail", "download_preview_message": "", "filename": "JPSJ_77-3.pdf", "filesize": [{"value": "706.6 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 7066000, "url": {"label": "JPSJ_77-3", "url": "https://tsukuba.repo.nii.ac.jp/record/53730/files/JPSJ_77-3.pdf"}, "version_id": "8e4f04cc-3884-49c0-9fc7-0242ea8ced7e"}]}, "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": "Loop Current Excitations in Effectively Half-Filled Mott Insulators", "item_titles": {"attribute_name": "\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_title": "Loop Current Excitations in Effectively Half-Filled Mott Insulators", "subitem_title_language": "en"}]}, "item_type_id": "5", "owner": "1", "path": ["3048/1714", "3/62/5592/1094"], "permalink_uri": "http://hdl.handle.net/2241/00159149", "pubdate": {"attribute_name": "\u516c\u958b\u65e5", "attribute_name_i18n": "\u516c\u958b\u65e5", "attribute_value": "2019-12-09"}, "publish_date": "2019-12-09", "publish_status": "0", "recid": "53730", "relation": {}, "relation_version_is_last": true, "title": ["Loop Current Excitations in Effectively Half-Filled Mott Insulators"], "weko_shared_id": 5}
Loop Current Excitations in Effectively Half-Filled Mott Insulators
http://hdl.handle.net/2241/00159149
cb7fd25c-79ca-4308-bc31-60a6a069a832
名前 / ファイル | ライセンス | Actions | |
---|---|---|---|
![]() |
|
item type | Journal Article(1) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
公開日 | 2019-12-09 | |||||||||||
タイトル | ||||||||||||
言語 | en | |||||||||||
タイトル | Loop Current Excitations in Effectively Half-Filled Mott Insulators | |||||||||||
言語 | ||||||||||||
言語 | eng | |||||||||||
資源タイプ | ||||||||||||
タイプ | journal article | |||||||||||
著者 |
小泉, 裕康
× 小泉, 裕康
WEKO
204265
|
|||||||||||
抄録 | ||||||||||||
内容記述 | We show that spin vortex excitations in a two-dimensional half-filled antiferromagnetic insulator are accompanied by loop currents; they are the collective flow of electrons generated by a fictitious magnetic field, where the field arises from a phase factor that ensures the single-valuedness of wave functions for electron hopping motion. We study effectively half-filled states of a U ≫ t Hubbard model in which all holes added to the exactly half-filled antiferromagnetic insulator become self-trapped polarons. Using the perturbation theory, we demonstrate that loop currents arise when spin vortices are created and partially retrieve the itineracy of electrons in the upper Hubbard band. We also perform mean-field calculations to gain qualitative insights on the loop current state using parameters appropriate for cuprate superconductors. It is shown that a collection of loop currents creates a large current flow region or a “river” of current. A calculated ARPES profile exhibits a Fermi arc feature seen in cuprates when an extended loop current region is present; thus, it is suggested that such a current region may be the origin of the Fermi arc. The elastic neutron scattering cross section profiles are also calculated and a splitting of peaks that resembles experimental results is obtained. | |||||||||||
書誌情報 |
en : Journal of the Physical Society of Japan 巻 77, 号 3, p. 034712, 発行日 2008-03 |
|||||||||||
ISSN | ||||||||||||
収録物識別子 | 0031-9015 | |||||||||||
書誌レコードID | ||||||||||||
収録物識別子 | AA00704814 | |||||||||||
DOI | ||||||||||||
関連識別子 | ||||||||||||
関連識別子 | 10.1143/JPSJ.77.034712 | |||||||||||
権利 | ||||||||||||
権利情報 | ©2008 The Physical Society of Japan | |||||||||||
著者版フラグ | ||||||||||||
値 | author | |||||||||||
出版者 | ||||||||||||
出版者 | The Physical Society of Japan |