Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Kimura, Shin-ichi | - |
dc.contributor.author | Kwon, Yong Seung | - |
dc.contributor.author | Matsumoto, Yuji | - |
dc.contributor.author | Aoki, Haruyoshi | - |
dc.contributor.author | Sakai, Osamu | - |
dc.date.accessioned | 2018-01-25T01:07:48Z | - |
dc.date.available | 2018-01-25T01:07:48Z | - |
dc.date.created | 2017-04-10 | - |
dc.date.issued | 2016-08-15 | - |
dc.identifier.issn | 0031-9015 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/5084 | - |
dc.description.abstract | Cerium (Ce)-based heavy-fermion materials have a characteristic double-peak structure (mid-IR peak) in the optical conductivity [σ(ω)] spectra originating from the strong conduction (c)-f electron hybridization. To clarify the behavior of the mid-IR peak at a low c-f hybridization strength, we compared the σ(ω) spectra of the isostructural antiferromagnetic and heavy-fermion Ce compounds with the calculated unoccupied density of states and the spectra obtained from the impurity Anderson model. With decreasing c-f hybridization intensity, the mid-IR peak shifts to the low-energy side owing to the renormalization of the unoccupied 4f state, but suddenly shifts to the high-energy side owing to the f-f on-site Coulomb interaction at a slight localized side from the quantum critical point (QCP). This finding gives us information on the change in the electronic structure across QCP. © 2016 The Physical Society of Japan. | - |
dc.publisher | Physical Society of Japan | - |
dc.title | Optical Evidence of Itinerant- Localized Crossover of 4f Electrons in Cerium Compounds | - |
dc.type | Article | - |
dc.identifier.doi | 10.7566/JPSJ.85.083702 | - |
dc.identifier.scopusid | 2-s2.0-84982710894 | - |
dc.identifier.bibliographicCitation | Journal of the Physical Society of Japan, v.85, no.8 | - |
dc.subject.keywordPlus | MODEL | - |
dc.subject.keywordPlus | SYSTemS | - |
dc.citation.number | 8 | - |
dc.citation.title | Journal of the Physical Society of Japan | - |
dc.citation.volume | 85 | - |
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