{"created":"2021-03-01T06:06:12.715668+00:00","id":2498,"links":{},"metadata":{"_buckets":{"deposit":"fb01b712-bd49-44e9-a8ce-6248c00b7c2c"},"_deposit":{"id":"2498","owners":[],"pid":{"revision_id":0,"type":"depid","value":"2498"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00002498","sets":["176:488:489","453:454"]},"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2012-04","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"16","bibliographicPageEnd":"165114-10","bibliographicPageStart":"165114-1","bibliographicVolumeNumber":"85","bibliographic_titles":[{"bibliographic_title":"Physical review. Third series. B, Condensed matter and materials physics"},{"bibliographic_title":"Physical review. Third series. B, Condensed matter and materials physics","bibliographic_titleLang":"en"}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We investigate the periodic Anderson model with k-dependent c-f mixing reproducing the point nodes of the hybridization gap by using the dynamical mean-field theory combined with the exact diagonalization method. At low temperature below a coherence temperature T0, the imaginary part of the self-energy is found to be proportional to T 2 and the pseudogap with two characteristic energies Δ1 and Δ2 is clearly observed for T << T0, while the pseudogap is smeared with increasing T and then disappears at high temperature T > T0 due to the evolution of the imaginary self-energy. When the Coulomb interaction between f electrons U increases, Δ1, Δ2, and T0 together with Tmax at which the magnetic susceptibility is maximum decrease in proportion to the renormalization factor Z resulting in a heavy-fermion semiconductor with a large mass enhancement m∗ /m = Z -1 for large U. We also examine the effect of the external magnetic field H and find that the magnetizationM shows two metamagnetic anomalies H1 and H2 corresponding toΔ1 and Δ2 which are reduced due to the effect of H together with Z. Remarkably, Z −1 is found to be largely enhanced due to H especially for H1< H < H2, where the field induced heavy fermion state is realized. The obtained results seem to be consistent with the experimental results observed in the anisotropic Kondo semiconductors such as CeNiSn.","subitem_description_type":"Abstract"}]},"item_5_publisher_7":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"American Physical Society"}]},"item_5_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"info:doi/10.1103/PhysRevB.85.165114","subitem_relation_type_select":"DOI"}}]},"item_5_relation_31":{"attribute_name":"異版である","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"http://journals.aps.org/prb/pdf/10.1103/PhysRevB.85.165114","subitem_relation_type_select":"URI"}}]},"item_5_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"Copyright (C) 2012 The American Physical Society"}]},"item_5_select_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_5_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11187113","subitem_source_identifier_type":"NCID"}]},"item_5_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"10980121","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yamada, Takemi"}],"nameIdentifiers":[{"nameIdentifier":"37480","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ono, Yoshiaki"}],"nameIdentifiers":[{"nameIdentifier":"62","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2019-07-29"}],"displaytype":"detail","filename":"85(16)_165114.pdf","filesize":[{"value":"756.0 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"85(16)_165114.pdf","url":"https://niigata-u.repo.nii.ac.jp/record/2498/files/85(16)_165114.pdf"},"version_id":"16df90b4-9cb1-4b8a-9017-6bed841c1d08"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Dynamical mean-field theory for the anisotropic Kondo semiconductor : Temperature and magnetic field dependence","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Dynamical mean-field theory for the anisotropic Kondo semiconductor : Temperature and magnetic field dependence"},{"subitem_title":"Dynamical mean-field theory for the anisotropic Kondo semiconductor : Temperature and magnetic field dependence","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["454","489"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-04-15"},"publish_date":"2014-04-15","publish_status":"0","recid":"2498","relation_version_is_last":true,"title":["Dynamical mean-field theory for the anisotropic Kondo semiconductor : Temperature and magnetic field dependence"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-15T03:35:36.081757+00:00"}