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Anomalous Change of Transport Characteristics of Graphite Planar-Type Micro-structures Fabricated by Focused Ion Beam

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An Erratum to this article was published on 01 July 2011

Abstract

We report the observation of an anomalous change of transport characteristics of planar-type microstructures (along ab-plane and c-axis) fabricated on thin graphite layer using a three-dimensional focused-ion-beam (FIB) etching technique. We have fabricated several in-plane area of sizes of 6 μm × 6 μm, 6 μm × 4 μm and 6 μm × 2 μm planar-type microstructures/patterns on thin graphite layer using FIB. The c-axis stack with the height of several nanometers was also fabricated. The transport characteristics were studied for these structures. We have observed a peculiar anomalous transition from ohmic behavior to curve-like nonlinear characteristics below 110 K from current (I)–voltage (V) curves for ab-plane and c-axis stack. Clear nonlinear characteristics have been observed at 25 K. Resistance versus temperature (R–T) and I–V characteristics of the ab-plane and c-axis stack strongly resemble this anomalous-transition behavior. These results show the superiority of graphite-microstructures for future graphite-based nonlinear electronic devices.

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Authors and Affiliations

  1. Graduate School of Science and Technology, Department of Mechanical System Engineering, Jeju National University, Jeju, South Korea

    V. Gunasekaran & S. Saini

  2. Department of Mechanical System Engineering, Jeju National University, Jeju, South Korea

    G. S. Kim

  3. Department of Mechatronics and Research Institute of Advanced Technology, Faculty of Engineering, Jeju National University, Jeju, 690756, South Korea

    S.-J. Kim

Authors
  1. V. Gunasekaran
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  2. S. Saini
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  3. G. S. Kim
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  4. S.-J. Kim
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Correspondence to S.-J. Kim.

Additional information

An erratum to this article is available at http://dx.doi.org/10.1007/s10948-011-1205-6.

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Gunasekaran, V., Saini, S., Kim, G.S. et al. Anomalous Change of Transport Characteristics of Graphite Planar-Type Micro-structures Fabricated by Focused Ion Beam. J Supercond Nov Magn 23, 1193–1196 (2010). https://doi.org/10.1007/s10948-010-0750-8

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  • DOI: https://doi.org/10.1007/s10948-010-0750-8

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