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Li‐doped ZnO polycrystals with Li2CO3 concentration between 0 and 15 at.% have been prepared using a solid state reaction method. After annealing of the mixed samples at 1200 °C, Li2CO3 completely decomposed to Li2O and the lattice parameters a/c first increase with Li2CO3 concentration up to 5 at.%, and then decrease with increasing Li2CO3 concentration. This indicates that Li atoms prefer interstitial...
Room‐temperature (RT) ferromagnetism (FM) has been observed in Fe‐doped ZnO bulk samples fabricated by a coprecipitation method, and the effect of additional Cu doping on magnetic properties of the samples has been investigated. The results of XRD show that all doping samples are single‐phase with a wurtzite structure. X‐ray photoelectron spectroscopy reveals that Fe is in 3+ state substituting for...
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