[1] Cady Ayyed Univ, Natl Sch Appl Sci, Lab Mat Proc Environm & Qual, Safi, Morocco
[2] Mohammed VAgdal Univ, Fac Sci, LMPHE URAC 12, Rabat, Morocco
[3] MAScIR, Inst Nanomat & Nanotechnol, Rabat, Morocco
[4] Hassan II Acad Sci & Technol, Rabat, Morocco
[5] Univ Grenoble 1, CNRS, Inst Neel, F-38042 Grenoble 9, France