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Optical response from terahertz to visible light of electronuclear transitions in LiYF_4:Ho^(3+)

Matmon, G. and Lynch, S. A. and Rosenbaum, T. F. and Fisher, A. J. and Aeppli, G. (2016) Optical response from terahertz to visible light of electronuclear transitions in LiYF_4:Ho^(3+). Physical Review B, 94 (20). Art. No. 205132. ISSN 2469-9950. doi:10.1103/PhysRevB.94.205132. https://resolver.caltech.edu/CaltechAUTHORS:20161121-124344148

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Abstract

Because of its role as a model system with tunable quantum fluctuations and quenched disorder, and the desire for optical control and readout of its states, we have used high-resolution optical absorption spectroscopy to measure the crystal-field excitations for Ho^(3+) ions in LiHo_xY_(1−x)F_4 from the terahertz to visible regimes. We show that many of the excitations yield very narrow lines visibly split even by the nuclear hyperfine interaction, making Ho^(3+) in LiHo_xY_(1−x)F_4 a candidate host for optically addressable electronuclear qubits with quality factors as high as Q = 4.7 × 10^5, where the higher-lying levels are electronic singlets. Optical transitions in the easily accessible near- and mid-infrared are narrow enough to allow readout of the ground-state electronuclear qubits responsible for the interesting magnetism of LiHo_xY_(1−x)F_4. While many of the higher-lying states have been observed previously, we also report here detailed spectra of terahertz excitations. The strengths of the electric and magnetic dipole crystal-field transition lines of five of the lowest excited spin-orbit manifolds of dilute LiYF_4:Ho^(3+) were calculated and compared with measurement. The magnitude of the nuclear hyperfine coupling was used to assign the correct upper and lower states to transition lines.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1103/PhysRevB.94.205132DOIArticle
http://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.205132PublisherArticle
ORCID:
AuthorORCID
Fisher, A. J.0000-0001-9754-4618
Alternate Title:Optical response from terahertz to visible light of electronuclear transitions in LiYF4:Ho3+
Additional Information:© 2016 American Physical Society. (Received 4 May 2016; revised manuscript received 18 October 2016; published 21 November 2016) The work at Caltech was supported by US Department of Energy Basic Energy Sciences Award No. DE-SC0014866. Work at UCL was supported by the Engineering and Physical Sciences Research Council (EPSRC) under Grants No. EP/H026622/1 and No. EP/M009564/1.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0014866
Engineering and Physical Sciences Research Council (EPSRC)EP/H026622/1
Engineering and Physical Sciences Research Council (EPSRC)EP/M009564/1
Issue or Number:20
DOI:10.1103/PhysRevB.94.205132
Record Number:CaltechAUTHORS:20161121-124344148
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20161121-124344148
Official Citation:Optical response from terahertz to visible light of electronuclear transitions in LiYF4:Ho3+ G. Matmon, S. A. Lynch, T. F. Rosenbaum, A. J. Fisher, and G. Aeppli Phys. Rev. B 94, 205132
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:72201
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:21 Nov 2016 21:46
Last Modified:11 Nov 2021 04:57

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