Probing hole-induced ferromagnetic exchange in magnetic semiconductors by inelastic neutron scattering
Kepa, H. · Van Khoi, Le · Brown, C. M. · Sawicki, M. · Furdyna, J. K. · Giebultowicz, T. M. · Dietl, T.
Original · EN
The effect of hole doping on the exchange coupling of the nearest neighbor (NN) Mn pairs in Zn₁₋ₓMnₓTe is probed by inelastic neutron scattering. The difference in the NN exchange energy ΔJ₁ in the presence and in the absence of the holes is determined. The obtained value of ΔJ₁ is in good agreement with the predictions of the Zener/RKKY model, even on the insulator side of the metal-insulator transition.
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