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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
发表期刊PHYSICAL REVIEW B
卷号96期号:7
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.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
资助者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) ; 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
关键词[WOS]SIZE-DEPENDENT PROPERTIES ; SPIN-PEIERLS TRANSITION ; ALKALI-HALIDE CRYSTALS ; D-D EXCITATIONS ; OPTICAL-ABSORPTION ; TEMPERATURE-DEPENDENCE ; MAGNETIC-PROPERTIES ; COMPOUND CUGEO3 ; METAL COMPLEXES ; UV ABSORPTION
收录类别SCI
语种英语
资助者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) ; 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研究方向Physics
WOS类目Physics, Condensed Matter
WOS记录号WOS:000408511700008
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/33652
专题应用技术研究所
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
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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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