Optical coherence of ${}^{166}$Er:${}^7$LiYF${}_4$ crystal below 1 Kelvin

Nadezhda Kukharchyk, Dmitriy Sholokhov, Stella L. Korableva +2

We explore spin dynamics of isotopically purified ${}^{166}$Er:${}^7$LiYF${}_4$ crystal below 1 Kelvin and at weak magnetic fields $<$0.3 T. Crystals grown in our lab demonstrate recor…