Journal article Open Access

Nuclear spin coherence properties of 151Eu3+ and 153Eu3+ in a Y2O3 transparent ceramic

Karlsson, J.; Kunkel, N.; Ikesue, A.; Ferrier, A.; Goldner, P.

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<oai_dc:dc xmlns:dc="" xmlns:oai_dc="" xmlns:xsi="" xsi:schemaLocation="">
  <dc:creator>Karlsson, J.</dc:creator>
  <dc:creator>Kunkel, N.</dc:creator>
  <dc:creator>Ikesue, A.</dc:creator>
  <dc:creator>Ferrier, A.</dc:creator>
  <dc:creator>Goldner, P.</dc:creator>
  <dc:description>We have measured inhomogeneous linewidths and coherence times (T2) of nuclear spin transitions in a Eu3+:Y2O3 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 151Eu3+ 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 153Eu3+ gave much weaker signals than for the case of 151Eu3+. The spin coherence time for the 73 MHz spin transition in 153Eu3+ was estimated to 14 ms in a small magnetic field. The study shows that the spin transitions of ceramic Eu3+:Y2O3 have coherence properties comparable to the best rare-earth-doped materials available.

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  <dc:subject>rare earth</dc:subject>
  <dc:subject>quantum technologies</dc:subject>
  <dc:subject>coherence lifetime</dc:subject>
  <dc:title>Nuclear spin coherence properties of 151Eu3+ and 153Eu3+ in a Y2O3 transparent ceramic</dc:title>
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