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Grant support

L.C. acknowledges helpful discussions with J.I. Cerda. This work has been partially supported by the Spanish DGES under grants MAT2006-06242, MAT2006-03741 and FIS2007-66711-C02-001 and Spanish CSIC under grant PI 200860I048. W.J. and M.P. acknowledge financial support from Polish LFPPI.

Analysis of institutional authors

Santos, HAuthor
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Article

Unzipped and Defective Nanotubes: Rolling up Graphene and Unrolling Tubes

Publicated to:Acta Physica Polonica a. 118 (3): 433-441 - 2010-09-01 118(3), DOI: 10.12693/APhysPolA.118.433

Authors: Chico, L; Santos, H; Ayuela, A; Jaskolski, W; Pelc, M; Brey, L

Affiliations

CSIC, Inst Ciencia Mat Madrid, E-28049 Madrid, Spain - Author
Ctr Fis Mat CPM CSIC UPV EHU, Dept Fis Mat, Fac Quim, Donostia San Sebastian 20080, Spain - Author
DIPC, Donostia San Sebastian 20080, Spain - Author
Inst Fizyki UMK, PL-87100 Torun, Poland - Author

Abstract

The properties of carbon nanotubes can be dramatically altered by the presence of defects. In this work we address the properties of two different kinds of defective nanotubes: junctions of achiral tubes with topological defects and partially unzipped carbon nanotubes. In particular, we begin by focussing on the interface states in carbon nanotube junctions between achiral tubes. We show that their number and energies can be derived by applying the Born von Karman boundary condition to an interface between armchair- and zigzag-terminated semi-infinite graphene layers. We show that these interface states, which were thought to be due to the presence of topological defects, are in fact related to the graphene zigzag edge states. Secondly, we study partially unzipped carbon nanotubes, which can be considered as the junction of a carbon nanotube and a graphene nanoribbon, which has edge features giving rise to novel properties. Carbon nanoribbons act as transparent contacts for nanotubes and viceversa, yielding a high conductance. At certain energies, nanoribbons behave as valley filters for carbon nanotubes; this holds considering electron electron interaction effects. Furthermore, the application of a magnetic field turns the system conducting, with a 100% magnetoresistance. These novel structures may open a way for new carbon-based devices.

Keywords
Carbon nanotubesConductanceElectronic-propertiesFormIntramolecular junctionsNanoribbonsRibbonsSheetsTransport-properties

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Acta Physica Polonica a, and although the journal is classified in the quartile Q4 (Agencia WoS (JCR)), its regional focus and specialization in Physics, Multidisciplinary, give it significant recognition in a specific niche of scientific knowledge at an international level.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-05-23:

  • WoS: 9
  • Scopus: 10
  • OpenCitations: 9
Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-05-23:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 16 (PlumX).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Additionally, the work has been submitted to a journal classified as Diamond in relation to this type of editorial policy.
Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Poland.