The nonradiative transition premiums Stick to the system WNR = W (0) exp(-alphap), exactly where p is the number of phonons matching the energy gap. The nonradiative transition fees of Er3+ show temperature dependence in keeping with the multiphonon rest theory. In Tm3+ the temperature dependence of nonradiative leisure prices https://erybyabcrystal95172.bloggazza.com/32177549/the-basic-principles-of-er-yb-yab-crystal