131 citations · 235 across the 4 of their papers we have counts for
4 papers
Experimental investigation of the optical spin selection rules in bulk Si and Ge/Si quantum dots
N. Sircar, D. Bougeard
We study the relationship between the circular polarization of photoluminescence and the magnetic field-induced spin-polarization of the recombining charge carriers in bulk Si and…
Interplay between the electrical transport properties of GeMn thin films and Ge substrates
N. Sircar, S. Ahlers, C. Majer +2
We present evidence that electrical transport studies of epitaxial p-type GeMn thin films fabricated on high resistivity Ge substrates are severely influenced by parallel conductio…
Clustering in a precipitate free GeMn magnetic semiconductor
D. Bougeard, S. Ahlers, A. Trampert +2
We present the first study relating structural parameters of precipitate free Ge0.95Mn0.05 films to magnetisation data. Nanometer sized clusters - areas with increased Mn content o…
Magnetic and structural properties of GeMn films: precipitation of intermetallic nanomagnets
S. Ahlers, D. Bougeard, N. Sircar +4
We present a comprehensive study relating the nanostructure of Ge_0.95Mn_0.05 films to their magnetic properties. The formation of ferromagnetic nanometer sized inclusions in a def…