Study of hydrogenation versus de-loading of Co and Mn doped ZnO semiconductor

Study of electronic and magnetic properties of vacuum annealed Cr doped ZnO

“…The ferromagnetism is observed in them [12][13][14][15], while the discrepancies continue in whether the ferromagnetism is intrinsic in nature [16][17][18][19] or due to spurious signals from the ferromagnetic impurities. By comparison, a lesser attention has been paid to Cr-and Ni-doped systems [20,21].…”

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

“…Theoretical works predicted that transition metal (TM) doped ZnO would show ferromagnetic behavior above 300 K [5,6]. The ferromagnetism measured at various temperatures was reported in Co-, Ni-, Mn-, and Fe-doped ZnO [7][8][9][10][11]. Rare earth atoms have partially filled f-orbitals which carry magnetic moments and may take part in magnetic coupling as in the case of TMs with partially filled d-orbitals.…”

Modification of optical properties in ZnO particles by surface deposition and anchoring of NiO nanoparticles

“…It has been observed that the interface created after a partial reaction of two oxides exhibits new and interesting properties due to the proximity and diffusion phenomena [1][2][3][4], which becomes relevant only at the nanoscale range. An interesting example of these interphase-related properties is the appearance of ferrimagnetism in mixtures of ZnO and Co 3 O 4 , despite the fact that they present diamagnetic and paramagnetic characteristics at room temperature, respectively [5,6].…”