Tunneling time of electrons through a potential barrier
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We investigate the problem of the average time spent by a tunneling electron in the classically forbidden region. We propose a natural method of generalizing the classical transit time concept to the quantum mechanical case and apply it to the problem of tunneling through a one-dimensional potential barrier. Considering the transmitted and reflected particles separately yields complex parameters which represent the tunneling times of reflected and transmitted particles. We investigate the connection of these parameters to the angles of rotation of electron spins in a magnetic field localized in the barrier region.
KeywordsMagnetic Field Transit Time Potential Barrier Complex Parameter Tunneling Electron
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- 1.K. K. Thornberg, T. C. McGill, and C. A. Mead, J. Appl. Phys.,38, No. 5, 2384 (1967).Google Scholar
- 2.P. Schnupp, Thin Solid Films, 2, No. 3, 177 (1968).Google Scholar
- 3.A. Baz', Yad. Fiz., 4, No. 2, 252 (1966).Google Scholar
- 4.A. I. Baz', Ya. B. Zel'dovich, and A. M. Perelomov, Scattering, Reactions, Disintegrations in Nonrelativistic Quantum Mechanics [in Russian], Nauka, Moscow (1972).Google Scholar
- 5.R. Feynman and A. Hibbs, Quantum Mechanics and Path Integrals, McGraw-Hill, New York (1965).Google Scholar
- 6.M. Büttiker, Phys. Rev. B,27, No. 10, 6178 (1983).Google Scholar
- 7.V. F. Rybachenko, Yad. Fiz.,5, 895 (1967).Google Scholar
- 8.T. E. Hartman, J. Appl. Phys.,33, No. 12, 3427 (1962).Google Scholar