Charge and Bonding in CuGeO3 Nanorods | |
O'Neal, Kenneth R.1; al-Wahish, Aural1; Li, Zhao-Qian2; Dhalenne, Guy3; Revcolevschi, Alexandre3; Chen, Xue-Tai4; Musfeldt, Janice L.1,5 | |
刊名 | NANO LETTERS |
2018-06-01 | |
期号 | 6页码:3428-3434 |
关键词 | Spin-Peierls transition magnetoelastic coupling size effects phonon confinement nanorods vibrational spectroscopy |
ISSN号 | 1530-6984 |
DOI | 10.1021/acs.nanolett.8b00407 |
英文摘要 | We combine infrared and Raman spectroscopies to investigate finite length scale effects in CuGeO3 nanorods. The infrared-active phonons display remarkably strong size dependence whereas the Raman-active features are, by comparison, nearly rigid. A splitting analysis of the Davydov pairs reveals complex changes in chemical bonding with rod length and temperature. Near the spin-Peierls transition, stronger intralayer bonding in the smallest rods indicates a more rigid lattice which helps to suppress the spin-Peierls transition. Taken together, these findings advance the understanding of size effects and collective phase transitions in low-dimensional oxides. |
资助项目 | Materials Science Division, Office of Basic Energy Sciences, U.S. Department of Energy[DE-FG02-01ER45885] |
WOS关键词 | SPIN-PEIERLS TRANSITION ; FERROELECTRIC PHASE-TRANSITION ; COMPOUND CUGEO3 ; HEMATITE NANOPARTICLES ; MAGNETIC-PROPERTIES ; CRYSTAL-STRUCTURE ; LIGHT-SCATTERING ; DOPED CUGEO3 ; PRESSURE ; DIAGRAM |
WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
语种 | 英语 |
出版者 | AMER CHEMICAL SOC |
WOS记录号 | WOS:000435524300016 |
内容类型 | 期刊论文 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/37187] |
专题 | 合肥物质科学研究院_应用技术研究所 |
通讯作者 | Musfeldt, Janice L. |
作者单位 | 1.Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA 2.Chinese Acad Sci, Inst Appl Technol, Hefei Inst Phys Sci, Hefei 230031, Anhui, Peoples R China 3.Univ Paris Saclay, ICMMO SP2M, UMR CNRS 8182, F-91405 Orsay, France 4.Nanjing Univ, State Key Lab Coordinat Chem, Nanjing Natl Lab Microstruct, Sch Chem & Chem Engn, Nanjing 210023, Jiangsu, Peoples R China 5.Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA |
推荐引用方式 GB/T 7714 | O'Neal, Kenneth R.,al-Wahish, Aural,Li, Zhao-Qian,et al. Charge and Bonding in CuGeO3 Nanorods[J]. NANO LETTERS,2018(6):3428-3434. |
APA | O'Neal, Kenneth R..,al-Wahish, Aural.,Li, Zhao-Qian.,Dhalenne, Guy.,Revcolevschi, Alexandre.,...&Musfeldt, Janice L..(2018).Charge and Bonding in CuGeO3 Nanorods.NANO LETTERS(6),3428-3434. |
MLA | O'Neal, Kenneth R.,et al."Charge and Bonding in CuGeO3 Nanorods".NANO LETTERS .6(2018):3428-3434. |
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