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ETRI journal v.18 no.4, 1997년, pp.301 - 313  

Importance of Backscattering Effects in Ballistic Quantum Transport in Mesoscopic Ring Structures

Shin, Min-Cheol   (Research Department in ETRI  ); Park, Kyoung-Wan   (Research Department in ETRI  ); Lee, Seong-Jae   (Research Department in Electronics and Telecommunications Research InstituteCC0186800  ); Lee, El-Hang   (Research Department at ETRI  );
  • 초록

    We have found that in the ballistic electron transport in a ring structure, the junction-backscattering contribution is critical for all the major features of the Aharonov-Bohm-type interference patterns. In particular, by considering the backscattering effect, we present new and clear interpretation about the physical origin of the secondary minima in the electrostatic Aharonov-Bohm effect and that of the h/2e oscillations when both the electric and magnetic potentials are present. We have devised a convenient scheme of expanding the conductance by the junction backscattering amplitude, which enables us to determine most important electron paths among infinitely many paths and to gain insight about their contributions to the interference patterns. Based on the scheme, we have identified various interesting interference phenomena in the ballistic ring structure and found that the backscattering effect plays a critical role in all of them.


  • 참고문헌 (17)

    1. Quantum oscillations and the Aharonov-Bohm effect for parallel resistors , Gefen, Y.;Imry, Y.;Azbel, M.Ya. , Phys. Rev. Lett. / v.52,pp.129-132,
    2. Two types of conductance minima in electrostatic Aharonov-Bohm conductance oscillations , Cahay, M.;Bandyopadhyay, S.;Grubin, H.L. , Phys. Rev. B / v.39,pp.12989-12992,
    3. Double quantum wire Aharonov-Bohm interferometers for possible LN2 temperature operation , Bandyopadhyay, S.;Porod, W. , Superlattices and Microstructures / v.5,pp.239-245,
    4. Electrostatic Aharonov-Bohm conductance oscillations in a mesoscopic ring: effect of potential discontinuities , Daisuke Takai;Kuniichi Ohta , Phys. Rev. B / v.49,pp.1844-1847,
    5. Landau quantization and Aharonov-Bohm effect in a two dimensional ring , Tan, W.C.;Inkson, J.C. , Phy. Rev. B / v.,pp.,
    6. Quantum devices , Datta, S. , Superlattices and Microstructures / v.6,pp.83-93,
    7. Aharonov-Bohm effect in semiconductor microstructures , Datta, S.;Bandyopadhyay, S. , Phys. Rev. Lett. / v.58,pp.717-720,
    8. Novel inerference effects between parallel quantum wells , Datta, S.;Melloch, M.R.;Bandyopadhyay, S.;Noren, R.;Vaziri, M.;Miller; M.;Reifenberger, R. , Phys. Rev. Lett. / v.55,pp.2344-2347,
    9. Quantum interference effects in an Aharonov-Bohm ring with a gate , Shin, Min-Cheol;Park, Kyoung-Wan;Lee, Seong-Jae;Lee, El-Hang , Jpn. J. Appl. Phys. / v.34,pp.4470-4472,
    10. Crossover behavior of the conductance oscillations in a quasi-one dimensional ring in the ballistic limit , Shin, Min-Cheol;Park, Kyoung-Wan;Lee, Seong-Jae;Lee, El-Hang , Phys. Rev. B / v.53,pp.1014-1017,
    11. Observation of h/e Aharonov-Bohm Oscillations in normal-metal rings , Webb, R.A.;Washburn, S.;Umbach, C.P.;Laibowitz, R.B. , Phys. Rev. Lett. / v.54,pp.2696-2699,
    12. Quantum transport in an electron-waveguide , Timp, G.;Chang, A.M.;Mankiewich, P.;Behringer, R.;Cunningham, J.E.;Chang, T.Y.;Howard, R.E. , Phys. Rev. Lett. / v.59,pp.732-735,
    13. Quantized conductance of point contacts in a two-dimensional electron gas , van Wees, B.J.;van Houten, H.;Beenakker, C.W.J.;Williamson, J.G.;Kouwenhoven, L.P.;van der Marel, D.;Foxon, C.T. , Phys. Rev. Lett. / v.60,pp.848-850,
    14. The Aharonov-Bohm effect in electrostatically defined heterojunction rings , Ford, C.J.B.;Thorton, T.J.;Newbury, R.;Pepper, M.;Ahmed, H.;Foxon, C.T.;Harris, J.J.;Roberts, C. , J. Phys. C: Solid State Phys. / v.21,pp.L325-L331,
    15. Tunable Aharonov-Bohm effect in an electron interferometer , de Vegvar, P.G.N.;Timp, G.;Mankiewich, P.M.;Behringer, R.;Cunningham, J. , Phys. Rev. B / v.40,pp.3491-3494,
    16. Significance of electromagnetic potentials in the quantum theory , Aharonov, Y.;Bohm, D. , Phys. Rev. / v.115,pp.485-491,
    17. Aharonov-Bohm effect in the presence of magnetic flux and electrostatic potential , Daisuke Takai;Kuniichi Ohta , Phys. Rev. B / v.48,pp.1537-1543,

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