Physics – Condensed Matter – Materials Science
Scientific paper
2004-05-27
Physics
Condensed Matter
Materials Science
4 pages, 3 figures
Scientific paper
10.1063/1.1994588
Microphotoluminescence mapping experiments were performed on a modulation doped (Cd,Mn)Te quantum well exhibiting carrier induced ferromagnetism. The zero field splitting that reveals the presence of a spontaneous magnetization in the low-temperature phase, is measured locally; its fluctuations are compared to those of the spin content and of the carrier density, also measured spectroscopically in the same run. We show that the fluctuations of the carrier density are the main mechanism responsible for the fluctuations of the spontaneous magnetization in the ferromagnetic phase, while those of the Mn spin density have no detectable effect at this scale of observation.
Bertolini Matteo
Cibert Joel
Ferrand Daniel
Gaj Jan A.
Golnik Andrzej
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