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Self-assembled ultrathin nanotubes on diamond (100) surface

Author

Listed:
  • Shaohua Lu

    (State Key Lab of Superhard Materials, Jilin University
    Beijing Computational Science Research Center)

  • Yanchao Wang

    (State Key Lab of Superhard Materials, Jilin University)

  • Hanyu Liu

    (State Key Lab of Superhard Materials, Jilin University)

  • Mao-sheng Miao

    (Beijing Computational Science Research Center
    Materials Research Laboratory, University of California)

  • Yanming Ma

    (State Key Lab of Superhard Materials, Jilin University)

Abstract

Surfaces of semiconductors are crucially important for electronics, especially when the devices are reduced to the nanoscale. However, surface structures are often elusive, impeding greatly the engineering of devices. Here we develop an efficient method that can automatically explore the surface structures using structure swarm intelligence. Its application to a simple diamond (100) surface reveals an unexpected surface reconstruction featuring self-assembled carbon nanotubes arrays. Such a surface is energetically competitive with the known dimer structure under normal conditions, but it becomes more favourable under a small compressive strain or at high temperatures. The intriguing covalent bonding between neighbouring tubes creates a unique feature of carrier kinetics (that is, one dimensionality of hole states, while two dimensionality of electron states) that could lead to novel design of superior electronics. Our findings highlight that the surface plays vital roles in the fabrication of nanodevices by being a functional part of them.

Suggested Citation

  • Shaohua Lu & Yanchao Wang & Hanyu Liu & Mao-sheng Miao & Yanming Ma, 2014. "Self-assembled ultrathin nanotubes on diamond (100) surface," Nature Communications, Nature, vol. 5(1), pages 1-6, May.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms4666
    DOI: 10.1038/ncomms4666
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    Cited by:

    1. Conor Hogan & Andrea Sette & Vasil A. Saroka & Stefano Colonna & Roberto Flammini & Laurita Florean & Romain Bernard & Laurence Masson & Geoffroy Prévot & Fabio Ronci, 2024. "Double-pentagon silicon chains in a quasi-1D Si/Ag(001) surface alloy," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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