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Figure 70. Upper panel showing the calculated temperature dependencies of the free hole concentration pv(T) (solid curve) and the number concentration of charged acceptors in the QW (dotted curve). The dashed curve is the energy separation Ef^ — l The lower panel displays the measured current as function of the temperature. Upper panel showing the calculated temperature dependencies of the free hole concentration pv(T) (solid curve) and the number concentration of charged acceptors in the QW (dotted curve). The dashed curve is the energy separation Ef^ — l The lower panel displays the measured current as function of the temperature. Reprinted with permission from [189], A. Blom et al., Appl. Phys. Lett. 79, 713 (2001). © 2001, American Institute of Physics.

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