Figure 1

XRD patterns.
XRD patterns of the samples obtained at different temperatures for 10 h and the standard PDF card of tetragonal phase NLM:Ln3+(Ln3+ = Eu3+,Tb3+).
XRD patterns.
XRD patterns of the samples obtained at different temperatures for 10 h and the standard PDF card of tetragonal phase NLM:Ln3+(Ln3+ = Eu3+,Tb3+).