Figure 1.

Schematic band diagram of the n-type RTD and typical PL emission from the QW. (a) Schematic band diagram of the n-type RTD under forward bias, light excitation, and magnetic field parallel to the tunnel current. (b) Typical PL emission from the QW for different voltages and 15T.

Orsi Gordo et al. Nanoscale Research Letters 2012 7:592   doi:10.1186/1556-276X-7-592
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