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Volumn 289, Issue 5476, 2000, Pages 94-97

Carbon nanotube-based nonvolatile random access memory for molecular computing

Author keywords

[No Author keywords available]

Indexed keywords

ARTICLE; CALCULATION; ELECTRONICS; INSTRUMENTATION; MOLECULE; PRIORITY JOURNAL;

EID: 0034617249     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.289.5476.94     Document Type: Article
Times cited : (1634)

References (32)
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    • manuscript in preparation
    • The elastic energy of a nanotube suspended on hard and soft supports has been evaluated using linear (Eq. 2) and nonlinear beam-bending models (K. Kim, E. Joselevich, T. Rueckes, J. W. Hutchinson, C. M. Lieber, manuscript in preparation). Calculations using the nonlinear model agree to within 1% of those using the computationally less costly linear model (Eq. 2).
    • Kim, K.1    Joselevich, E.2    Rueckes, T.3    Hutchinson, J.W.4    Lieber, C.M.5
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    • Our recent studies of nanotube tweezers [P. Kim and C. M. Lieber, Science 286, 2148 (1999)] show experimentally that nanotubes can behave as robust electromechanical devices. In this latter work, the free ends of nanotube bundles could be deflected repeatably using electrostatic forces to grab submicron objects.
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    • The electrostatic energy of the system was evaluated by solving the Laplace equation for the suspended nanotube geometry (Fig. 1), including the dielectric support layer. The Laplace equation in a general 3D geometry was solved using Green's theorem [J. D. Jackson, Classical Electrodynamics (Wiley, New York, ed. 2, 1974)]. Green's theorem converts the Laplace equation into the form of an integral equation. It implies that if the potential and its normal derivative on the boundary are known, then the electrostatic potential over all 3D space can be determined. The value of the potential on the boundary is known, so the main task is to solve for the normal derivative. We used the potential value on the boundary to self-consistently obtain the normal derivative with the boundary element method [C. A. Brebbia, The Boundary Element Method for Engineers (Wiley, New York, 1978)].
    • (1974) Classical Electrodynamics
    • Jackson, J.D.1
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    • Wiley, New York
    • The electrostatic energy of the system was evaluated by solving the Laplace equation for the suspended nanotube geometry (Fig. 1), including the dielectric support layer. The Laplace equation in a general 3D geometry was solved using Green's theorem [J. D. Jackson, Classical Electrodynamics (Wiley, New York, ed. 2, 1974)]. Green's theorem converts the Laplace equation into the form of an integral equation. It implies that if the potential and its normal derivative on the boundary are known, then the electrostatic potential over all 3D space can be determined. The value of the potential on the boundary is known, so the main task is to solve for the normal derivative. We used the potential value on the boundary to self-consistently obtain the normal derivative with the boundary element method [C. A. Brebbia, The Boundary Element Method for Engineers (Wiley, New York, 1978)].
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    • note
    • -7 pF) so that it will not affect the speed of the device.
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    • Semiconductor nanowires can be specifically doped n-type or p-type [Y. Cui, X. Duan, J. Hu, C. M. Lieber, J. Phys. Chem. B 104, 5213 (2000)]. If the lower wires in our architecture are made from n-type nanowires, then rectifying behavior will be observed at each cross element, irrespective of whether the upper SWNT is metallic or semiconductor. Metallic SWNTs would produce M-S diode junctions, whereas semiconducting SWNTs, which (as previous studies have shown) behave as p-type materials (12), would form rectifying p-n junctions.
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    • Cui, Y.1    Duan, X.2    Hu, J.3    Lieber, C.M.4
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    • note
    • We thank J. W. Hutchinson, P. Kim, and J. Huang for helpful discussion and E. J. Sánchez for help with figures. C.M.L. acknowledges support of this work by the Defense Advanced Research Projects Agency and the Office of Naval Research.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.