Theoretical investigation of the negative differential resistance in squashed C60 molecular device

被引:100
作者
Fan, Zhi-Qiang [1 ,2 ]
Chen, Ke-Qiu [1 ,2 ]
Wan, Qing [1 ,2 ]
Zou, B. S. [1 ,2 ]
Duan, Wenhui [3 ]
Shuai, Z. [4 ]
机构
[1] Hunan Univ, Minist Educ, Key Lab Micronano Optoelect Devices, Changsha 410082, Hunan, Peoples R China
[2] Hunan Univ, Dept Appl Phys, Changsha 410082, Hunan, Peoples R China
[3] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[4] Chinese Acad Sci, Inst Chem, Key Lab Organ Solids, Beijing 100080, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1063/1.2952493
中图分类号
O59 [应用物理学];
学科分类号
摘要
By applying nonequilibrium Green's function and first-principles calculation, we investigate the transport behavior of squashed C-60 molecular devices. The results show that the electronic transport properties are affected obviously by the deformation of C-60 molecule. Negative differential resistance is found in such system and can be tuned by the deformation degree of the molecule. A mechanism for the negative differential resistance behavior is suggested. (c) 2008 American Institute of Physics.
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页数:3
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