The nonradiative transition costs follow the system WNR = W (0) exp(-alphap), wherever p is the amount of phonons matching the Electricity gap. The nonradiative changeover prices of Er3+ exhibit temperature dependence according to the multiphonon relaxation idea. In Tm3+ the temperature dependence of nonradiative relaxation prices is challenging via https://erybyabcrystal85950.frewwebs.com/35313538/er-yb-yab-crystal-an-overview