[1] Ist Struttura Mat CNR ISM CNR, SS 14,Km 163,5, I-34149 Trieste, Italy
[2] Univ Calabria, Dipartimento Fis, I-87036 Arcavacata Di Rende, CS, Italy
[3] Homi Bhabha Natl Inst, Training Sch Complex, Mumbai 400094, Maharashtra, India
[4] Int Phys, Sachivalaya Marg, Bhubaneswar 751005, India
[5] CSIR Inst Minerals & Mat Technol, Bhubaneswar 751013, India
[6] Forschungszentrum Julich, Peter Grunberg Inst PGI, D-52425 Julich, Germany
[7] Univ Duisburg Essen, Fak Phys, D-47057 Duisburg, Germany
[8] Ist Officina Mat IOM CNR, Lab TASC, SS 14,Km 163-5, I-34149 Trieste, Italy
[9] CNR, Ist Struttura Mat, I-00133 Rome, Italy
[10] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA
[11] Peter Grunberg Inst, D-52425 Julich, Germany
[12] Forschungszentrum Julich, Inst Adv Simulat, D-52425 Julich, Germany
[13] JARA, D-52425 Julich, Germany
[14] Elettra Sincrotrone Trieste, SS 14 Km 163-5, I-34149 Trieste, Italy