Optimal percentage evaluation of the active impurity of the neodymium crystals of the kalium gadolinium wolframate

The authors analyzed the dependence of crystal dimming from the dopant concentration. They established that with the increase of the neodymium impurity percentage in the liquid melt the dimming index number increases. On the basis of the neodymium atoms spectral characteristics they drew that the neodymium impurity percentage increases with the increase of the percentage in the liquid melt up to 7 %. From the magnetic study follows that with the increase of the neodymium percentage the magnetizability difference decreases. With the help of hydrothermal corrosion method the authors established that the neodymium impurity disposes along the zone edges, there are dislocations, grain boundaries and macroscopic inclusions. They also established the critical concentration of the neodymium impurity.