The nonradiative changeover charges follow the method WNR = W (0) exp(-alphap), exactly where p is the volume of phonons matching the Power hole. The nonradiative changeover charges of Er3+ show temperature dependence in line with the multiphonon leisure concept. In Tm3+ the temperature dependence of nonradiative peace charges is https://er-yb-yab-crystal20751.blog-a-story.com/15703322/er-yb-yab-crystal-an-overview