Electronic structure of single-crystalline thermoelectric Bi2-xPbxSr2Co2Oy (x=0,0.6) from photoemission and x-ray absorption
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kang, JS | - |
dc.contributor.author | Han, SW | - |
dc.contributor.author | Fujii, T | - |
dc.contributor.author | Terasaki, I | - |
dc.contributor.author | Lee, SS | - |
dc.contributor.author | Kim, G | - |
dc.contributor.author | Olson, CG | - |
dc.contributor.author | Lee, HG | - |
dc.contributor.author | Kim, JY | - |
dc.contributor.author | Min, BI | - |
dc.date.accessioned | 2022-04-19T11:24:19Z | - |
dc.date.available | 2022-04-19T11:24:19Z | - |
dc.date.issued | 2006-11 | - |
dc.identifier.issn | 1098-0121 | - |
dc.identifier.uri | https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/148531 | - |
dc.description.abstract | The electronic structures of Bi2-xPbxSr2Co2Oy (x=0,0.6) thermoelectric single crystals have been investigated by employing photoemission spectroscopy (PES) and polarization-dependent soft x-ray absorption spectroscopy. Co ions are found to be in the Co3+-Co4+ mixed-valent states with the low-spin configuration. The valence-band PES study reveals that the Co 3d states are located at the top of the valence bands, corresponding to the occupied electron configuration of e(g)(pi 4)a(1g)(1+x) (x < 1). Both the topmost occupied states and the lowest unoccupied states have the primarily out-of-plane Co a(1g) character, suggesting that carriers have the Co a(1g) hole character. Angle resolved photoemission spectroscopy measurements show that the lowest binding-energy states are shifted toward E-F with increasing x in Bi2-xPbxSr2Co2Oy, indicating that the carrier states are shifted toward E-F. This study suggests that the thermoelectric property of Bi2-xPbxSr2Co2Oy is improved for x > 0 mainly by the reduced resistivity. | - |
dc.format.extent | 6 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.title | Electronic structure of single-crystalline thermoelectric Bi2-xPbxSr2Co2Oy (x=0,0.6) from photoemission and x-ray absorption | - |
dc.type | Article | - |
dc.publisher.location | 미국 | - |
dc.identifier.doi | 10.1103/PhysRevB.74.205116 | - |
dc.identifier.scopusid | 2-s2.0-33751168272 | - |
dc.identifier.wosid | 000242409400026 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW B, v.74, no.20, pp 809 - 814 | - |
dc.citation.title | PHYSICAL REVIEW B | - |
dc.citation.volume | 74 | - |
dc.citation.number | 20 | - |
dc.citation.startPage | 809 | - |
dc.citation.endPage | 814 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.identifier.url | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.74.205116 | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
Sookmyung Women's University. Cheongpa-ro 47-gil 100 (Cheongpa-dong 2ga), Yongsan-gu, Seoul, 04310, Korea02-710-9127
Copyright©Sookmyung Women's University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.