Two-pulse and stimulated nuclear-quadrupole-resonance echoes in YAlO3:Pr3+

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DOIResolve DOI: https://doi.org/10.1103/PhysRevB.43.12723
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  1. National Research Council of Canada
FormatText, Article
Journal titlePhysical Review B
ISSN0163-1829
1095-3795
Volume43
Issue16
Pages12723–12728
Abstract
The dephasing of trivalent praseodymium dilute in yttrium aluminum oxide (YAlO3) in the ground electronic state 3H4 state is evaluated using an optically detected method, to measure two-rf-pulse- and three-rf-pulse-stimulated nuclear quadrupole echoes. The magnitude of the echo is obtained by detecting the weak Raman optical field generated by the interaction of the magnetic moment of the echo and a light beam resonant with the 3H4(0 cm1) to 1D2(16 374 cm−1) optical transition. This same light beam is used as an optical pump (37-ms duration) prior the rf-pulse sequence to increase the population difference of the hyperfine energy levels, thereby improving the echo signal. The light is turned off 9 ms before the rf-pulse sequence and remains off until the echo to avoid optical-pumping effects on the measured nuclear-quadrupole-resonance (NQR) echo lifetime. The dephasing time T2 from two-pulse nuclear-quadrupole-echo measurement is found to be 366±29 μs.
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PublisherAmerican Physical Society
LanguageEnglish
Peer reviewedYes
NPARC number23002967
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