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dc.contributor.authorKitagawa, Shunsakuen
dc.contributor.authorKinoshita, Yudaien
dc.contributor.authorIshida, Kenjien
dc.contributor.authorKusada, Kouheien
dc.contributor.authorKitagawa, Hiroshien
dc.contributor.alternative北川, 俊作ja
dc.contributor.alternative木下, 雄大ja
dc.contributor.alternative石田, 憲二ja
dc.contributor.alternative草田, 康平ja
dc.contributor.alternative北川, 宏ja
dc.date.accessioned2024-04-02T05:25:55Z-
dc.date.available2024-04-02T05:25:55Z-
dc.date.issued2024-01-15-
dc.identifier.urihttp://hdl.handle.net/2433/287503-
dc.description.abstractNanoparticles were predicted to exhibit unique physical properties due to quantum size effects, but their identification remains difficult. According to Kubo's theory, the gap size is inversely correlated with both the density of states at the Fermi energy and the number of atoms in the particle. Previously, we confirmed that the particle size and magnetic field dependence of NMR anomaly temperature is consistent with the estimated “Kubo” gap. Here, we investigated the density-of-states dependence in the Pt₁₋𝓍 Cu𝓍 nanoparticles. While an enhancement of nuclear spin-lattice relaxation rate 1/T₁ at low temperatures was clearly observed for the Pt-rich nanoparticles, such behavior was abruptly suppressed in the Cu-rich nanoparticles. Furthermore, the NMR anomaly temperature is nearly unchanged with varying the density of states. Our findings indicate that quantum size effect contains more profound physics than just the ones predicted by Kubo.en
dc.language.isoeng-
dc.publisherAmerican Physical Society (APS)en
dc.rights©2024 American Physical Societyen
dc.subjectLocal density of statesen
dc.subjectCore-shell nanoparticlesen
dc.subjectNanoparticlesen
dc.subjectLiquid helium coolingen
dc.subjectNuclear magnetic resonanceen
dc.subjectCondensed Matter, Materials & Applied Physicsen
dc.titleBreakdown of Kubo relation in Pt-Cu nanoparticlesen
dc.typejournal article-
dc.type.niitypeJournal Article-
dc.identifier.jtitlePhysical Review Ben
dc.identifier.volume109-
dc.identifier.issue4-
dc.relation.doi10.1103/PhysRevB.109.L041408-
dc.textversionpublisher-
dc.identifier.artnumL041408-
dcterms.accessRightsopen access-
datacite.awardNumber20KK0061-
datacite.awardNumber20H00130-
datacite.awardNumber20H05623-
datacite.awardNumber21K18600-
datacite.awardNumber22H04933-
datacite.awardNumber22H01168-
datacite.awardNumber23H01124-
datacite.awardNumber.urihttps://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20KK0061/-
datacite.awardNumber.urihttps://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20H00130/-
datacite.awardNumber.urihttps://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20H05623/-
datacite.awardNumber.urihttps://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21K18600/-
datacite.awardNumber.urihttps://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22H04933/-
datacite.awardNumber.urihttps://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22H01168/-
datacite.awardNumber.urihttps://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23H01124/-
dc.identifier.pissn2469-9950-
dc.identifier.eissn2469-9969-
jpcoar.funderName日本学術振興会ja
jpcoar.funderName日本学術振興会ja
jpcoar.funderName日本学術振興会ja
jpcoar.funderName日本学術振興会ja
jpcoar.funderName日本学術振興会ja
jpcoar.funderName日本学術振興会ja
jpcoar.funderName日本学術振興会ja
jpcoar.awardTitleウランが創発するスピン三重項超伝導の新しい物理ja
jpcoar.awardTitleウラン化合物におけるスピン三重項超伝導状態の研究ja
jpcoar.awardTitle非平衡合成による多元素ナノ合金の創製ja
jpcoar.awardTitle金属ナノ粒子における量子サイズ効果の理解とその物性応用ja
jpcoar.awardTitleウランも含む強相関トポロジカルスピン三重項超伝導の物理ja
jpcoar.awardTitleSr2RuO4での「非従来型」を超える超伝導状態の探求ja
jpcoar.awardTitle副格子自由度によって現れる奇パリティ超伝導状態の解明ja
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