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Title: Quasiparticle scattering and local density of states in graphite

Abstract

We observe the effect of quasiparticle interference on the spatial variations of the local density of states in graphite in the neighborhood of an isolated impurity. A number of characteristic behaviors of interference are identified in the Fourier transformed spectrum. A comparison between our results and scanning tunneling microscopy experiments could provide a critical test of the range (of energy) of applicability of the Fermi liquid description of graphite, where some evidence of the breakdown of Fermi liquid theory has recently been discussed. Furthermore, given the similarity between the band structures of graphite and that of nodal quasiparticles in a d-wave superconductor, a comparison between results in the two materials may be useful for understanding the physics of the cuprates.

Authors:
 [1];  [2]
  1. Univ. of California, Santa Barbara, CA (United States)
  2. Univ. of California, Los Angeles, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC); National Science Foundation (NSF)
OSTI Identifier:
1443043
Report Number(s):
[SLAC-PUB-13968]
[Journal ID: ISSN 1098-0121; PRBMDO]
Grant/Contract Number:  
[AC02-76SF00515; FG03-00ER45798]
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
[ Journal Volume: 72; Journal Issue: 12]; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Bena, Cristina, and Kivelson, Steven A. Quasiparticle scattering and local density of states in graphite. United States: N. p., 2005. Web. doi:10.1103/PhysRevB.72.125432.
Bena, Cristina, & Kivelson, Steven A. Quasiparticle scattering and local density of states in graphite. United States. doi:10.1103/PhysRevB.72.125432.
Bena, Cristina, and Kivelson, Steven A. Tue . "Quasiparticle scattering and local density of states in graphite". United States. doi:10.1103/PhysRevB.72.125432. https://www.osti.gov/servlets/purl/1443043.
@article{osti_1443043,
title = {Quasiparticle scattering and local density of states in graphite},
author = {Bena, Cristina and Kivelson, Steven A.},
abstractNote = {We observe the effect of quasiparticle interference on the spatial variations of the local density of states in graphite in the neighborhood of an isolated impurity. A number of characteristic behaviors of interference are identified in the Fourier transformed spectrum. A comparison between our results and scanning tunneling microscopy experiments could provide a critical test of the range (of energy) of applicability of the Fermi liquid description of graphite, where some evidence of the breakdown of Fermi liquid theory has recently been discussed. Furthermore, given the similarity between the band structures of graphite and that of nodal quasiparticles in a d-wave superconductor, a comparison between results in the two materials may be useful for understanding the physics of the cuprates.},
doi = {10.1103/PhysRevB.72.125432},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = [12],
volume = [72],
place = {United States},
year = {2005},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 61 works
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Figures / Tables:

Figure 1 Figure 1: The equal energy contours |$\epsilon_1(k_x, k_y)$| = |$\epsilon_2(k_x, k_y)$| in graphite. The six points marked by dots correspond to the corners of the BZ (also the points with ω = 0), and the BZ is indicated by the dashed lines. The band structure at small energies consists ofmore » circular energy contours centered about the corners and the center of the BZ. At larger energies, the circles change shape and size, and above some energy ω = 1eV they become hexagons and then circles centered about the center of the BZ, to disappear altogether for energies larger than ω = 3eV.« less

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Works referenced in this record:

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.