Spectroscopy and crystal-field analysis of low-symmetry Er<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si206.svg" display="inline" id="d1e2646"><mml:msup><mml:mrow/><mml:mrow><mml:mn>3</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:math> centres in K<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si132.svg" display="inline" id="d1e2656"><mml:msub><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math>YF<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si133.svg" display="inline" id="d1e2664"><mml:msub><mml:mrow/><mml:mrow><mml:mn>5</mml:mn></mml:mrow></mml:msub></mml:math> microparticles

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dc.contributor.authorSolanki , Pratik S.
dc.contributor.authorReid, Michael
dc.contributor.authorWells, Jon-Paul R.
dc.date.accessioned2025-02-02T20:21:17Z
dc.date.available2025-02-02T20:21:17Z
dc.date.issued2024
dc.description.abstractK2YF5 crystals doped with lanthanide ions have a variety of possible optical applications. Owing to the low symmetry of the system, the crystal structure cannot be unambiguously determined by x-ray diffraction. However, electron paramagnetic resonance studies have demonstrated that lanthanide ions sub stitute for yttrium in sites of Cs local symmetry. In this work, we use high resolution absorption and laser spectroscopy to determine electronic energy levels for Er3+ ions in K2YF5 microparticles. A total of 39 crystal-field energy levels, distributed among 7 multiplets of the Er3+ ion, have been assigned. This optical data is used for crystal-field modelling of the electronic structure of Er3+ in K2YF5 . Our model is fitted not only to the electronic energy levels, but also to the ground-state g-tensor. This magnetic-splitting data defines the axis system of the calculation, avoiding ambiguities associated with low-symmetry crystal-field fits.
dc.identifier.citationSolanki PS, Reid MF, Wells J-PR (2024). Spectroscopy and crystal-field analysis of low-symmetry Er<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si206.svg" display="inline" id="d1e2646"><mml:msup><mml:mrow/><mml:mrow><mml:mn>3</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:math> centres in K<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si132.svg" display="inline" id="d1e2656"><mml:msub><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math>YF<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si133.svg" display="inline" id="d1e2664"><mml:msub><mml:mrow/><mml:mrow><mml:mn>5</mml:mn></mml:mrow></mml:msub></mml:math> microparticles. Optical Materials: X. 24. 100356-100356.
dc.identifier.doihttp://doi.org/10.1016/j.omx.2024.100356
dc.identifier.issn2590-1478
dc.identifier.urihttps://hdl.handle.net/10092/107575
dc.languageen
dc.publisherElsevier BV
dc.rightsAll rights reserved unless otherwise stated
dc.rights.urihttp://hdl.handle.net/10092/17651
dc.subjectrare-earth
dc.subjectcrystal-field analysis
dc.subjectspectroscopy
dc.subjectErbium
dc.subjectK2YF5
dc.subject.anzsrc34 - Chemical sciences::3402 - Inorganic chemistry::340202 - Crystallography
dc.titleSpectroscopy and crystal-field analysis of low-symmetry Er<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si206.svg" display="inline" id="d1e2646"><mml:msup><mml:mrow/><mml:mrow><mml:mn>3</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:math> centres in K<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si132.svg" display="inline" id="d1e2656"><mml:msub><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math>YF<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si133.svg" display="inline" id="d1e2664"><mml:msub><mml:mrow/><mml:mrow><mml:mn>5</mml:mn></mml:mrow></mml:msub></mml:math> microparticles
dc.typeJournal Article
uc.collegeFaculty of Science
uc.departmentSchool of Physical & Chemical Sciences
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