Nuclear spin coherence properties of¹⁵¹Eu³⁺and¹⁵³Eu³⁺in a Y₂O₃transparent ceramic Article Swipe

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coherence (philosophical gambling strategy) coherence time physics spin (aerodynamics) spin echo condensed matter physics atomic physics spin–lattice relaxation spin wave nuclear magnetic resonance ferromagnetism paramagnetism thermodynamics radiology quantum mechanics magnetic resonance imaging medicine

Jenny Karlsson , Nathalie Kunkel , Akio Ikesue , Alban Ferrier , Philippe Goldner ·

YOU? · · 2017 · Open Access · · DOI: https://doi.org/10.1088/1361-648x/aa529a · OA: W2586466794

&lt;p&gt;We have measured inhomogeneous linewidths and coherence times (T&lt;sub&gt;2&lt;/sub&gt;) of nuclear spin transitions in a Eu&lt;sup&gt;3+&lt;/sup&gt;:Y&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt; transparent ceramic by an all-optical spin echo technique. The nuclear spin echo decay curves showed a strong modulation which was attributed to interaction with Y nuclei in the host. The coherence time of the 29 MHz spin transition in &lt;sup&gt;151&lt;/sup&gt;Eu&lt;sup&gt;3+&lt;/sup&gt; was 16 ms in a small applied magnetic field. Temperature dependent measurements showed that the coherence time was constant up to 18 K and was limited by spin-lattice relaxation for higher temperatures. Nuclear spin echoes in &lt;sup&gt;153&lt;/sup&gt;Eu&lt;sup&gt;3+&lt;/sup&gt; gave much weaker signals than for the case of &lt;sup&gt;151&lt;/sup&gt;Eu&lt;sup&gt;3+&lt;/sup&gt;. The spin coherence time for the 73 MHz spin transition in &lt;sup&gt;153&lt;/sup&gt;Eu&lt;sup&gt;3+&lt;/sup&gt; was estimated to 14 ms in a small magnetic field. The study shows that the spin transitions of ceramic Eu&lt;sup&gt;3+&lt;/sup&gt;:Y&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt; have coherence properties comparable to the best rare-earth-doped materials available.&lt;/p&gt;\n\n&lt;p&gt;These results have been highlighted in JPhys+, news and views from the Journal of Physics series (IOP): https://jphysplus.iop.org/2017/02/09/long-spin-coherence-lifetime-in-eu3y2o3-ceramic/&lt;/p&gt;\n\n&lt;p&gt; &lt;/p&gt;