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Vibronic coupling and band gap trends in CuGeO3 nanorods
O'Neal, Kenneth R.1; al-Wahish, Amal1; Li, Zhaoqian2; Chen, Peng1; Kim, Jae Wook3,4; Cheong, Sang-Wook3,4; Dhalenne, Guy5; Revcolevschi, Alexandre5; Chen, Xue-Tai6; Musfeldt, Janice L.1,7
2017-08-28
Source PublicationPHYSICAL REVIEW B
Volume96Issue:7
AbstractWe measured the optical response of CuGeO3 nanorods in order to reveal size effects on the electronic properties. The vibronically activated d-to-d color band excitations are activated by the 131 and 478 cm(-1) phonons, with the relative contribution of the lower frequency O-Cu-O bending mode increasing with decreasing size until it dominates the process. We also uncover trends in the direct band gap, with the charge transfer edge hardening with decreasing size. These findings advance the understanding of size effects in low-dimensional copper oxides.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationMaterials Science Division, Office of Basic Energy Sciences, US Department of Energy(DE-FG02-01ER45885) ; Materials Science Division, Office of Basic Energy Sciences, US Department of Energy(DE-FG02-01ER45885) ; National Science Foundation DMREF program(DMR-1629079 ; National Science Foundation DMREF program(DMR-1629079 ; DMR-1629059) ; DMR-1629059) ; Materials Science Division, Office of Basic Energy Sciences, US Department of Energy(DE-FG02-01ER45885) ; Materials Science Division, Office of Basic Energy Sciences, US Department of Energy(DE-FG02-01ER45885) ; National Science Foundation DMREF program(DMR-1629079 ; National Science Foundation DMREF program(DMR-1629079 ; DMR-1629059) ; DMR-1629059)
DOI10.1103/PhysRevB.96.075437
WOS KeywordSIZE-DEPENDENT PROPERTIES ; SPIN-PEIERLS TRANSITION ; ALKALI-HALIDE CRYSTALS ; D-D EXCITATIONS ; OPTICAL-ABSORPTION ; TEMPERATURE-DEPENDENCE ; MAGNETIC-PROPERTIES ; COMPOUND CUGEO3 ; METAL COMPLEXES ; UV ABSORPTION
Indexed BySCI
Language英语
Funding OrganizationMaterials Science Division, Office of Basic Energy Sciences, US Department of Energy(DE-FG02-01ER45885) ; Materials Science Division, Office of Basic Energy Sciences, US Department of Energy(DE-FG02-01ER45885) ; National Science Foundation DMREF program(DMR-1629079 ; National Science Foundation DMREF program(DMR-1629079 ; DMR-1629059) ; DMR-1629059) ; Materials Science Division, Office of Basic Energy Sciences, US Department of Energy(DE-FG02-01ER45885) ; Materials Science Division, Office of Basic Energy Sciences, US Department of Energy(DE-FG02-01ER45885) ; National Science Foundation DMREF program(DMR-1629079 ; National Science Foundation DMREF program(DMR-1629079 ; DMR-1629059) ; DMR-1629059)
WOS Research AreaPhysics
WOS SubjectPhysics, Condensed Matter
WOS IDWOS:000408511700008
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/33652
Collection应用技术研究所
Affiliation1.Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA
2.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Appl Technol, Hefei 230031, Anhui, Peoples R China
3.Rutgers State Univ, Rutgers Ctr Emergent Mat, Piscataway, NJ 08854 USA
4.Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA
5.Univ Paris 11, UMR CNRS 8182, ICMMO, SP2M, F-91405 Orsay, France
6.Nanjing Univ, Sch Chem & Chem Engn, Nanjing Natl Lab Microstruct, State Key Lab Coordinat Chem, Nanjing 210023, Jiangsu, Peoples R China
7.Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA
Recommended Citation
GB/T 7714
O'Neal, Kenneth R.,al-Wahish, Amal,Li, Zhaoqian,et al. Vibronic coupling and band gap trends in CuGeO3 nanorods[J]. PHYSICAL REVIEW B,2017,96(7).
APA O'Neal, Kenneth R..,al-Wahish, Amal.,Li, Zhaoqian.,Chen, Peng.,Kim, Jae Wook.,...&Musfeldt, Janice L..(2017).Vibronic coupling and band gap trends in CuGeO3 nanorods.PHYSICAL REVIEW B,96(7).
MLA O'Neal, Kenneth R.,et al."Vibronic coupling and band gap trends in CuGeO3 nanorods".PHYSICAL REVIEW B 96.7(2017).
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