Real space imaging of one-dimensional standing waves: direct evidence for a luttinger liquid

Physical Review Letters

Volumn 93, Issue 16, 2004, Pages

  Lee, Jhinhwan ^a   Eggert, S ^b,e   Kim, H ^a   Kahng, S J ^c   Shinohara, H ^d   Kuk, Y ^a  

^a Seoul National University   (South Korea)

^b CHALMERS UNIVERSITY OF TECHNOLOGY   (Sweden)

^c Korea University   (South Korea)

^d NAGOYA UNIVERSITY   (Japan)

^e University of Koblenz Landau   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

CARBON NANOTUBES; CURRENT VOLTAGE CHARACTERISTICS; ELECTRIC CHARGE; ELECTRIC CONDUCTANCE; ELECTRIC EXCITATION; FERMI LEVEL; GOLD; METAL SPINNING; SCANNING TUNNELING MICROSCOPY;

BOSONIC EXCITATIONS; ELECTRONIC STANDING WAVES; NANOWIRES; SINGLE-WALL CARBON NANOTUBES (SWCNT);

WAVE EFFECTS;

EID: 19644400552     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevLett.93.166403     Document Type: Article

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18. For example, Choi et al. [H. J. Choi et al., Phys. Rev. Lett. 84, 2917 (2000)] shows that the electron scattering from a pentagon-heptagon-pair defect can have strong directionality (Fig. 3, bottom right image), leaving nearly zero amplitude in the tube axis direction. If such directionality could be valid for a mode (a branch of dispersion curve) in the entire voltage range of STS measurement, the mode will be totally invisible in Fourier Transform-STS measurement.
19. Even with the tip condition that gives the highest resolution spectroscopy, the energy-resolved Friedel oscillations could be resolved only for r > ∼2 nm. A simple Luttinger liquid model with the assumption of infinite potential barrier may not be appropriate very close to the end of the tube due to the strong singularity at the scattering boundary.