p-d Exchange Interaction in ZnSe/BeMnTe MultipleQuantum Well Structures with a Type II BandAlignment

摘要

We have investigated magnetoluminescence properties of bothZn0.917Mn0.083Se/BeTe- and ZnSe/Be1-xMnxTe-multiple quantum wellstructures (x=0.019?0.083) with a magnetic field up to 7 T in thetemperature range 2.2?15 K. s-d and p-d exchange constants have beenseparately determined from the observed Zeeman splitting. A p-dexchange constant for Be1-xMnxTe and an s-d exchange constant forZn0.917Mn0.083Se are found to be ?0.34 ± 0.01 eV and 0.24 ± 0.01 eV,respectively.