Zafar Ahmed 2000 J. Phys. A: Math. Gen. 33 3161 doi:10.1088/0305-4470/33/16/308
Zafar Ahmed
Show affiliationsA slight mismatch of left and right derivatives at the junction of a semi-infinite potential step is shown to cause dramatic changes in above-the-step reflectivity as a function of incident energy. Firstly, the reflectivity becomes enhanced remarkably at energies much above the step. Secondly, depending on the parameters, there exists a pronounced single minimum in the reflectivity at an energy slightly above-the-step height. Several methods and interfacial profiles have been employed to verify the claimed behaviour of the reflectivity.
Issue 16 (28 April 2000)
Received 9 August 1999, in final form 25 January 2000
Zafar Ahmed 2000 J. Phys. A: Math. Gen. 33 3161
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