Electronic properties of polygonal defects in graphitic carbon sheets

Ryo Tamura; Kazuto Akagi; Masaru Tsukada; Satoshi Itoh; Sigeo Ihara

doi:10.1103/PhysRevB.56.1404

Electronic properties of polygonal defects in graphitic carbon sheets

Ryo Tamura, Kazuto Akagi, Masaru Tsukada, Satoshi Itoh, Sigeo Ihara

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

Abstract

Remarkable features of local density of states (LDOS) at a single (Formula presented)-membered ring defect (Formula presented) in monolayered graphite are described. Based on the (Formula presented)-fold rotational symmetry at the center of the (Formula presented)-membered ring, the wave functions and the spectra of these systems are classified into (Formula presented) kinds of components according to the character of the rotational symmetry group. Based on the analysis using this symmetry, the LDOS can be considered as broadened energy levels of the corresponding isolated (Formula presented)-membered ring molecule. The (Formula presented)-membered ring defect with the large-(Formula presented) limit can be considered a screw dislocation in the graphite. The value of its LDOS approaches zero as the inverse of the logarithm of the energy at the band edges and at the band center.

Original language	English
Pages (from-to)	1404-1411
Number of pages	8
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	56
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevB.56.1404
Publication status	Published - 1997 Jan 1
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1103/PhysRevB.56.1404

Fingerprint Dive into the research topics of 'Electronic properties of polygonal defects in graphitic carbon sheets'. Together they form a unique fingerprint.

Cite this

@article{e4e7ad75050a4890a48a242f7d346a1b,

title = "Electronic properties of polygonal defects in graphitic carbon sheets",

abstract = "Remarkable features of local density of states (LDOS) at a single (Formula presented)-membered ring defect (Formula presented) in monolayered graphite are described. Based on the (Formula presented)-fold rotational symmetry at the center of the (Formula presented)-membered ring, the wave functions and the spectra of these systems are classified into (Formula presented) kinds of components according to the character of the rotational symmetry group. Based on the analysis using this symmetry, the LDOS can be considered as broadened energy levels of the corresponding isolated (Formula presented)-membered ring molecule. The (Formula presented)-membered ring defect with the large-(Formula presented) limit can be considered a screw dislocation in the graphite. The value of its LDOS approaches zero as the inverse of the logarithm of the energy at the band edges and at the band center.",

author = "Ryo Tamura and Kazuto Akagi and Masaru Tsukada and Satoshi Itoh and Sigeo Ihara",

year = "1997",

month = jan,

day = "1",

doi = "10.1103/PhysRevB.56.1404",

language = "English",

volume = "56",

pages = "1404--1411",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "0163-1829",

publisher = "American Institute of Physics Publising LLC",

number = "3",

}

TY - JOUR

T1 - Electronic properties of polygonal defects in graphitic carbon sheets

AU - Tamura, Ryo

AU - Akagi, Kazuto

AU - Tsukada, Masaru

AU - Itoh, Satoshi

AU - Ihara, Sigeo

PY - 1997/1/1

Y1 - 1997/1/1

N2 - Remarkable features of local density of states (LDOS) at a single (Formula presented)-membered ring defect (Formula presented) in monolayered graphite are described. Based on the (Formula presented)-fold rotational symmetry at the center of the (Formula presented)-membered ring, the wave functions and the spectra of these systems are classified into (Formula presented) kinds of components according to the character of the rotational symmetry group. Based on the analysis using this symmetry, the LDOS can be considered as broadened energy levels of the corresponding isolated (Formula presented)-membered ring molecule. The (Formula presented)-membered ring defect with the large-(Formula presented) limit can be considered a screw dislocation in the graphite. The value of its LDOS approaches zero as the inverse of the logarithm of the energy at the band edges and at the band center.

AB - Remarkable features of local density of states (LDOS) at a single (Formula presented)-membered ring defect (Formula presented) in monolayered graphite are described. Based on the (Formula presented)-fold rotational symmetry at the center of the (Formula presented)-membered ring, the wave functions and the spectra of these systems are classified into (Formula presented) kinds of components according to the character of the rotational symmetry group. Based on the analysis using this symmetry, the LDOS can be considered as broadened energy levels of the corresponding isolated (Formula presented)-membered ring molecule. The (Formula presented)-membered ring defect with the large-(Formula presented) limit can be considered a screw dislocation in the graphite. The value of its LDOS approaches zero as the inverse of the logarithm of the energy at the band edges and at the band center.

UR - http://www.scopus.com/inward/record.url?scp=0000157203&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000157203&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.56.1404

DO - 10.1103/PhysRevB.56.1404

M3 - Article

AN - SCOPUS:0000157203

VL - 56

SP - 1404

EP - 1411

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

SN - 0163-1829

IS - 3

ER -