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Vibronic coupling and band gap trends in CuGeO3 nanorods

文献类型：期刊论文

作者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
刊名PHYSICAL REVIEW B
出版日期2017-08-28
卷号96期号:7
DOI10.1103/PhysRevB.96.075437
文献子类Article
英文摘要We 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.
WOS关键词SIZE-DEPENDENT PROPERTIES ; SPIN-PEIERLS TRANSITION ; ALKALI-HALIDE CRYSTALS ; D-D EXCITATIONS ; OPTICAL-ABSORPTION ; TEMPERATURE-DEPENDENCE ; MAGNETIC-PROPERTIES ; COMPOUND CUGEO3 ; METAL COMPLEXES ; UV ABSORPTION
WOS研究方向Physics
语种英语
WOS记录号WOS:000408511700008
资助机构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) ; 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) ; 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) ; 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 ; National Science Foundation DMREF program(DMR-1629079 ; National Science Foundation DMREF program(DMR-1629079 ; National Science Foundation DMREF program(DMR-1629079 ; National Science Foundation DMREF program(DMR-1629079 ; National Science Foundation DMREF program(DMR-1629079 ; National Science Foundation DMREF program(DMR-1629079 ; DMR-1629059) ; DMR-1629059) ; DMR-1629059) ; DMR-1629059) ; DMR-1629059) ; DMR-1629059) ; 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) ; 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) ; 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) ; 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 ; National Science Foundation DMREF program(DMR-1629079 ; National Science Foundation DMREF program(DMR-1629079 ; National Science Foundation DMREF program(DMR-1629079 ; National Science Foundation DMREF program(DMR-1629079 ; National Science Foundation DMREF program(DMR-1629079 ; National Science Foundation DMREF program(DMR-1629079 ; DMR-1629059) ; DMR-1629059) ; DMR-1629059) ; DMR-1629059) ; DMR-1629059) ; DMR-1629059) ; DMR-1629059) ; DMR-1629059)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/33652]  
专题合肥物质科学研究院_应用技术研究所
作者单位1.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
推荐引用方式
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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来源：合肥物质科学研究院

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