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Author | Cantoro, M.; Klekachev, A.V.; Nourbakhsh, A.; Sorée, B.; Heyns, M.M.; de Gendt, S. | ||||
Title | Long-wavelength, confined optical phonons in InAs nanowires probed by Raman spectroscopy | Type | A1 Journal article | ||
Year | 2011 | Publication | European physical journal : B : condensed matter and complex systems | Abbreviated Journal | Eur Phys J B |
Volume | 79 | Issue | 4 | Pages | 423-428 |
Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
Abstract | Strongly confined nano-systems, such as one-dimensional nanowires, feature deviations in their structural, electronic and optical properties from the corresponding bulk. In this work, we investigate the behavior of long-wavelength, optical phonons in vertical arrays of InAs nanowires by Raman spectroscopy. We attribute the main changes in the spectral features to thermal anharmonicity, due to temperature effects, and rule out the contribution of quantum confinement and Fano resonances. We also observe the appearance of surface optical modes, whose details allow for a quantitative, independent estimation of the nanowire diameter. The results shed light onto the mechanisms of lineshape change in low-dimensional InAs nanostructures, and are useful to help tailoring their electronic and vibrational properties for novel functionalities. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Berlin | Editor | ||
Language | Wos | 000288120600005 | Publication Date | 2011-02-03 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1434-6028;1434-6036; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 1.461 | Times cited | 10 | Open Access | |
Notes | ; ; | Approved | Most recent IF: 1.461; 2011 IF: 1.534 | ||
Call Number | UA @ lucian @ c:irua:89502 | Serial | 1841 | ||
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