Mn-rich clusters in GeMn magnetic semiconductors: Structural evolution and magnetic property

The early stage of formation of self-organized nanocolumns in thin films: Monte Carlo simulations versus atomic-scale observations in Ge-Mn

“…The role of the misfit strain between nanocolumns and the parent phase needs to be clarified. 14,15 In addition, the influence of both the growth temperature 10,13 and the overall film concentration 10 on the evolution of nanostructure features (number density and size of nanocolumns) is not fully documented and understood.…”

“…The influence of growth temperature and chemical composition on the formation of B-rich nanocolumns (size and number density) has been studied. Simulated nanostructures were confronted to those observed in Ge-Mn thin film by Transmission Electron Microscopy (TEM) 10,13 and Atom Probe Tomography (APT) 36 where self organisation of nanocolumns were revealed. The early stages of phase separation (nucleation of B-rich regions) are shown to control the final nanostructure.…”

Structural, optical and magnetic properties of Eu-doped ZnO films

“…Much of work has been done on the magnetic properties of IV, III-V, and II-VI DMS materials obtained by doping magnetic impurities into those semiconductors [2,3]. Among them, ZnO-based DMSs have been extensively studied as they hold great potential for the applications in magneto-, photo-, spin-electronics and microwave devices due to their wide band gap (3.37 eV) and high exciton binding energy (60 meV) [4].…”

Tunable room temperature ferromagnetism in Sn0.93Fe0.05M0.02O2−σ (M=Sb/Mg): The role of electron- and hole-doping

“…To overcome such difficulty, researchers never cease to explore multifunctional materials and more sophisticated technologies. Recently, the emerging technology of dilute magnetic semiconductor (DMS) has attracted intensive interest due to its interesting properties and promising applications in spintronics [1][2][3]. In the DMS-based materials, an additional degree of freedom of the electron (spin) can be realized by doping ferromagnetic 3d transition metals, i.e., Fe, Co, Mn, etc.…”