A Raman-Heterodyne Study of the Hyperfine Interaction of the Optically-Excited State ${}^5$D${}_0$ of Eu${}^{3+}$:Y${}_2$SiO${}_5$

Yu Ma, Zong-Quan Zhou, Chao Liu +13

The spin coherence time of ${}^{151}$Eu${}^{3+}$ which substitutes the yttrium at site 1 in Y${}_2$SiO${}_5$ crystal has been extended to 6 hours in a recent work [\textit{Nature} \textbf{…