The Binding Energy of the $Sb$ Donor State in Ge_{1-x}Si_{x} Grystals

Authors: Rena KYAZIMZADE

Abstract: The singlet ground-state binding energy \varepsilon_1 of antimony impurity in Ge_{1-x}Si_x(0\leq x\leq, 3) has been determined on the basis of Hall measurements. It is shown that \varepsilon_1 increases linearly with Si concentration in Ge-like (0\leq x\leq 0, 12) and Si-like (x\geq,15) crystals. Experimental results have been analysed within effective mass approximation theory for shallow donors. Central core effect influence in the ground-state binding energy of antimony in Ge-like crystals was estimated.

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