Vibrational properties of sp carbon atomic wires in cluster-assembled carbon films

被引：8
|
作者：
Onida, Giovanni [1 ,2 ]
Manini, Nicola [1 ,2 ]
Ravagnan, Luca [1 ,3 ]
Cinquanta, Eugenio [1 ,4 ]
Sangalli, Davide [1 ,2 ]
Milani, Paolo [1 ,3 ]
机构：
[1] Univ Studi Milano, Dipartimento Fis, I-20133 Milan, Italy
[2] ETSF, I-20133 Milan, Italy
[3] Univ Studi Milano, CIMAINA, I-20133 Milan, Italy
[4] Univ Milano Bicocca, Dipartimento Sci Mat, I-20125 Milan, Italy
来源：
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2010年 / 247卷 / 08期
关键词：
atomic wires; carbon; Raman spectra; vibrational properties; RAMAN;
D O I：
10.1002/pssb.200983946
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Linear chains made by a single row of sp-hybridized carbon are predicted to display fascinating mechano-electronic properties connected with their termination and stabilization inside realistic carbon structures. The present work describes how the computed vibrational properties of cumulenic and polyynic carbon chains allow one to interpret the carbynic features observed in Raman spectra of cluster-assembled sp-sp(2) films. The overall picture is consistent with the measured decay of the components induced by air or oxygen exposure. [GRAPHICS] The electronic properties of carbon atomic chains attached to the edges of graphitic fragments can be controlled by a relative twist of the terminating planes. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：2017 / 2021
页数：5
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