Quantum dephasing in carbon nanotubes due to electron-phonon coupling

被引：55

作者：

Roche, S

Jiang, J

Triozon, F

Saito, R

机构：

[1] CEA DSM DRFM SPSMS GT, F-38054 Grenoble, France

[2] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[3] CREST JST, Sendai, Miyagi 9808578, Japan

[4] CEA DRT LETI D2NT LSCDP, F-38054 Grenoble, France

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.95.076803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the effect of electron-phonon coupling on quantum transport in carbon nanotubes. The vibrational atomic displacements as well as the electron-phonon coupling strength are introduced through a time-dependent perturbation of the pi-electron Hamiltonian. The effect of dephasing on the Kubo conductance is studied for metallic and semiconducting nanotubes, and from a phenomenological law, coherence length (time) scales are found to fluctuate within the range 10 to 150 nm (0.01 to 4 ps) depending on the energy of charge carriers and phonon amplitude.

引用

收藏

页数：4

相关论文

共 28 条

[1]

AKKERMANS E, 2004, PHYS MESOSCOPIQUE EL

[2] Carbon nanotube electronics and optoelectronics [J].

Avouris, P .

MRS BULLETIN, 2004, 29 (06) :403-410

[3] Role of the dopant in the superconductivity of diamond -: art. no. 237004 [J].

Blase, X ;

Adessi, C ;

Connétable, D .

PHYSICAL REVIEW LETTERS, 2004, 93 (23)

[4] Temperature dependence of the band gap of semiconducting carbon nanotubes [J].

Capaz, RB ;

Spataru, CD ;

Tangney, P ;

Cohen, ML ;

Louie, SG .

PHYSICAL REVIEW LETTERS, 2005, 94 (03)

[5] Current saturation and electrical breakdown in multiwalled carbon nanotubes [J].

Collins, PG ;

Hersam, M ;

Arnold, M ;

Martel, R ;

Avouris, P .

PHYSICAL REVIEW LETTERS, 2001, 86 (14) :3128-3131

[6] High-field quasiballistic transport in short carbon nanotubes [J].

Javey, A ;

Guo, J ;

Paulsson, M ;

Wang, Q ;

Mann, D ;

Lundstrom, M ;

Dai, HJ .

PHYSICAL REVIEW LETTERS, 2004, 92 (10) :106804-1

[7] Ballistic carbon nanotube field-effect transistors [J].

Javey, A ;

Guo, J ;

Wang, Q ;

Lundstrom, M ;

Dai, HJ .

NATURE, 2003, 424 (6949) :654-657

[8] Photoexcited electron relaxation processes in single-wall carbon nanotubes -: art. no. 045417 [J].

Jiang, J ;

Saito, R ;

Grüneis, A ;

Chou, SG ;

Samsonidze, GG ;

Jorio, A ;

Dresselhaus, G ;

Dresselhaus, MS .

PHYSICAL REVIEW B, 2005, 71 (04)

[9] Temperature-dependent resistivity of single-wall carbon nanotubes [J].

Kane, CL ;

Mele, EJ ;

Lee, RS ;

Fischer, JE ;

Petit, P ;

Dai, H ;

Thess, A ;

Smalley, RE ;

Verschueren, ARM ;

Tans, SJ ;

Dekker, C .

EUROPHYSICS LETTERS, 1998, 41 (06) :683-688

[10] SELF-CONSISTENT CALCULATION OF ELECTRON-PHONON COUPLINGS [J].

LAM, PK ;

DACOROGNA, MM ;

COHEN, ML .

PHYSICAL REVIEW B, 1986, 34 (08) :5065-5069