The use of thermal ballistic pulses to excite EPR signals in the upper Stark states of the impurity Er3+ ion in an LiYF4 crystal
Al'tshuler S. A., Antipin A. A., Rakhmatullin R. M., Rozentsvaig Yu. K., Fedii A. A., Shlenkin V. I.
Using the impurity Er3+ ions in an LiYF4 crystal, it is possible to detect an EPR effect in the upper Stark levels which are populated with the help of thermal ballistic pulses.