Publications (9)
Strain and correlation of self-organized Ge_(1-x)Mn_x nanocolumns embedded in Ge (001)
S. Tardif, V. Favre-Nicolin, F. Lançon +8
We report on the structural properties of Ge_(1-x)Mn_x layers grown by molecular beam epitaxy. In these layers, nanocolumns with a high Mn content are embedded in an almost-pure Ge…
Embedded magnetic phases in (Ga,Fe)N: the key role of growth temperature
A. Navarro-Quezada, W. Stefanowicz, Tian Li +9
The local chemistry, structure, and magnetism of (Ga,Fe)N nanocomposites grown by metal organic vapor phase epitaxy is studied by high resolution synchrotron x-ray diffraction and…
Exchange bias in GeMn nanocolumns: the role of surface oxidation
S. Tardif, S. Cherifi, M. Jamet +9
We report on the exchange biasing of self-assembled ferromagnetic GeMn nanocolumns by GeMn-oxide caps. The x-ray absorption spectroscopy analysis of this surface oxide shows a mult…
The Fe-Mg interplay and the effect of deposition mode in (Ga,Fe)N doped with Mg
A. Navarro-Quezada, N. Gonzalez Szwacki, W. Stefanowicz +9
The effect of Mg codoping and its deposition mode on the Fe distribution in (Ga,Fe)N layers grown by metalorganic vapor phase epitaxy is investigated. Both homogeneously- and digit…
Origin of low-temperature magnetic ordering in Ga1-xMnxN
M. Sawicki, T. Devillers, S. GaÅÈ©ski +9
By employing highly sensitive millikelvin SQUID magnetometry, the magnitude of the Curie temperature as a function of the Mn concentration x is determined for thoroughly characteri…
Effects of s,p - d and s - p exchange interactions probed by exciton magnetospectroscopy in (Ga,Mn)N
J. Suffczynski, A. Grois, W. Pacuski +6
Near band-gap photoluminescence and reflectivity in magnetic field are employed to determine the exchange-induced splitting of free exciton states in paramagnetic wurtzite Ga1-xMnx…