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Wang, Ying; Herron, Norman; Möller, Karin; Bein, Thomas (1991): Three-dimensionally confined diluted magnetic semiconductor clusters. Zn1−xMnxS. In: Solid State Communications, Vol. 77, No. 1: pp. 33-38




We report the first example of a dilute magnetic semiconductor (DMS) confined in all three dimensions (DMS quantum dot). Zn0.93Mn0.07S clusters of not, vert, similar 25 Å diameter are successfully synthesized inside a glass matrix and fully characterized by chemical analysis, x-ray diffraction, extended x-ray absorption fine structure (EXAFS), and photoluminescence spectroscopy. Effect of size quantization on the exciton energy has been observed. Preliminary magnetic susceptibility data are presented and discussed.