The nonradiative transition charges Keep to the system WNR = W (0) exp(-alphap), where p is the volume of phonons matching the Electrical power hole. The nonradiative transition premiums of Er3+ exhibit temperature dependence consistent with the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative peace premiums is https://andrespqoli.liberty-blog.com/33360578/details-fiction-and-er-yb-yab-crystal