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Abstract:
Electrical transport measurements are reported on a 2DEG in a
CdMnTe quantum well structure. The amplitude of the Shubnikov-
de Haas oscillations show a distinct beating pattern with nodes
corresponding to coincidences between the spin splitting and a
half integer multiple of the cyclotron energy. The observed
pattern of nodes is a direct consequence of the large Pauli
paramagnetism induced by the s-d exchange interaction between
the spins of electronic states and the localized magnetic
moments.
