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Enhancement of electron-wave reflection by superlattices with multiple stacks of multiquantum barriers (1994)

Yen, S. T. ; Tsai, C. M. ; Lee, C. P. ; [et al.]

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 64 (1994), S. 1108-1110

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ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: We report a superlattice (SL) with multiple stacks of multiquantum barriers (MQB), which can reflect electrons more effectively than with a single stack of MQB. The reflectivities are calculated and compared with one another for a variety of potential barrier structures. The multistack SL has a wider energy spectrum within which electrons are reflected. Four types of n-GaAs/i-barrier/n-GaAs diodes were fabricated to confirm the calculated results. The current-voltage characteristics measured at 77 K for these diodes show that the turn-on voltage increases with the number of stacks of MQBs in the SL. This is in agreement with our calculated results.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.110843

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