Spectroscopy of Sm$^{3+}$ Ions in the C$_{\rm s}$ Symmetry Centres of Hydrothermally Prepared K$_2$YF$_5$ Microcrystals

• URL: http://arxiv.org/abs/2510.11934v1
• Date: Mon, 13 Oct 2025 20:59:28 GMT
• Title: Spectroscopy of Sm$^{3+}$ Ions in the C$_{\rm s}$ Symmetry Centres of Hydrothermally Prepared K$_2$YF$_5$ Microcrystals
• Authors: Pakwan Chanprakhon, Michael F. Reid, and Jon-Paul R. Wells,
• Abstract summary: We report on the synthesis and spectroscopic characterization of Sm$3+$-doped K$$$YF$_5$ microparticles.<n>The particles were synthesized via the hydrothermal technique, yielding a particle size of approximately 20 $mu$m in length.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: We report on the synthesis and spectroscopic characterization of Sm$^{3+}$-doped K$_2$YF$_5$ microparticles. The particles were synthesized via the hydrothermal technique, yielding a particle size of approximately 20 $\mu$m in length. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) analyses confirmed their orthorhombic crystal structure. A combination of absorption and laser excited fluorescence performed on samples cooled to 10~K, allow for the determination of {56} experimental crystal-field levels. A parametrised crystal-field analysis for Sm$^{3+}$ in the C$_{\rm s}$ point group symmetry centres of K$_2$YF$_5$ yields good approximation to the data.

Related papers

• OXtal: An All-Atom Diffusion Model for Organic Crystal Structure Prediction [63.318434943975255]
  We introduce OXtal, a large-scale 100M parameter all-atom diffusion model that learns the conditional joint distribution over intramolecular conformations and periodic packing.<n>By leveraging a large dataset of 600K experimentally validated crystal structures, OXtal achieves orders-of-improvement over prior ab initio machine learning CSP methods.<n> OXtal attains over 80% packing similarity rate, demonstrating its ability to model both thermodynamic and kinetic regularities of molecular crystallization.
  arXiv  Detail & Related papers  (2025-12-07T20:46:30Z)
• Infrared Absorption and Laser Spectroscopy of Ho$^{3+}$ Doped K$_2$YF$_5$ Microparticles [0.0]
  This optical data is used for crystal-field modelling of the electronic structure of Ho$3+$ in K$$YF$_5$ microparticles.<n>Temperature dependence of the fluorescent lifetime of the $5$F$_5$ multiplet is measured.<n> measurements of infra-red to visible upconversion in microparticles co-doped with Ho$3+$ and Yb$3+$ is reported.
  arXiv  Detail & Related papers  (2025-10-18T04:18:06Z)
• Cryogenic Microwave Whispering Gallery Mode Spectroscopy of Paramagnetic Impurities in High-Purity Crystalline LiF [0.2999888908665658]
  A low-noise cryogenic microwave spectroscopy experiment was performed on a high-purity lithium fluoride (LiF) crystal.<n>The spectroscopy data revealed avoided level crossing interactions in whispering gallery modes.<n>The number of hyperfine splittings observed, together with the natural abundance of ions possessing the appropriate nuclear spin values, suggest that V$2+$ and V$3+$ impurities, exhibiting orthorhombic distortion, are the most likely sources of the narrow interaction features.
  arXiv  Detail & Related papers  (2025-05-25T14:42:02Z)
• Growth and Spectroscopy of Lanthanide Doped Y$_2$SiO$_5$ Microcrystals for Quantum Information Processing [0.0]
  Lanthanide-doped Y$_2$SiO$_5$ microcrystals were prepared using the solution combustion, solid state and sol-gel synthesis techniques. Laser site-selective fluorescence measurements of Nd$3+$, Eu$3+$ and Er$3+$ doped material, performed at cryogenic temperatures, indicate that the as-grown microcrystals are of high optical quality.
  arXiv  Detail & Related papers  (2024-09-25T03:18:59Z)
• Spectroscopy and Crystal-Field Analysis of Low -Symmetry Er$^{3+}$ Centres in K$_2$YF$_5$ Microparticles [0.0]
  K$$YF$_5$ crystals doped with lanthanide ions have a variety of possible optical applications. electron-paramagnetic resonance studies have demonstrated that lanthanide ions substitute for yttrium in sites of C$_rm s$ local ambiguities.
  arXiv  Detail & Related papers  (2024-09-24T00:23:38Z)
• Reproduction of the electronic and magnetic structure of the low symmetry sites of Y$_{2}$SiO$_{5}$ doped with Sm$^{3+}$ via a parameterized crystal-field model [0.0]
  Parametrized crystal-field analyses are presented for both the six and seven fold coordinated, C$_1$ symmetry Sm$3+$ centers. The resultant analyses give good approximation to the experimental energy levels and magnetic splittings, yielding crystal-field parameters consistent with the few other lanthanide ions.
  arXiv  Detail & Related papers  (2022-06-18T01:20:58Z)
• Time-correlated Photons from a In$_{0.5}$Ga$_{0.5}$P Photonic Crystal Cavity on a Silicon Chip [55.41644538483948]
  Time-correlated photon pairs are generated by triply-resonant Four-Wave-Mixing in a In$_0.5$Ga$_0.5$P Photonic Crystal cavitiy. The generation rate reaches 5 MHz in cavities with Q-factor $approx 4times 104$, more than one order of magnitude larger than what is measured using ring resonators with similar Q factors fabricated on the same chip.
  arXiv  Detail & Related papers  (2022-02-19T15:22:06Z)
• High-resolution 'magic'-field spectroscopy on trapped polyatomic molecules [62.997667081978825]
  Rapid progress in cooling and trapping of molecules has enabled first experiments on high resolution spectroscopy of trapped diatomic molecules. Extending this work to polyatomic molecules provides unique opportunities due to more complex geometries and additional internal degrees of freedom.
  arXiv  Detail & Related papers  (2021-10-21T15:46:17Z)
• Rovibrational structure of the Ytterbium monohydroxide molecule and the $\mathcal{P}$,$\mathcal{T}$-violation searches [68.8204255655161]
  The energy gap between levels of opposite parity, $l$-doubling, is of a great interest. The influence of the bending and stretching modes on the sensitivities to the $mathcalP$,$mathcalT$-violation requires a thorough investigation.
  arXiv  Detail & Related papers  (2021-08-25T20:12:31Z)
• $\mathcal{P}$,$\mathcal{T}$-odd effects for RaOH molecule in the excited vibrational state [77.34726150561087]
  Triatomic molecule RaOH combines the advantages of laser-coolability and the spectrum with close opposite-parity doublets. We obtain the rovibrational wave functions of RaOH in the ground electronic state and excited vibrational state using the close-coupled equations derived from the adiabatic Hamiltonian.
  arXiv  Detail & Related papers  (2020-12-15T17:08:33Z)
• Two-Dimensional Single- and Multiple-Quantum Correlation Spectroscopy in Zero-Field Nuclear Magnetic Resonance [55.41644538483948]
  We present single- and multiple-quantum correlation $J$-spectroscopy detected in zero magnetic field using a Rb vapor-cell magnetometer. At zero field the spectrum of ethanol appears as a mixture of carbon isotopomers, and correlation spectroscopy is useful in separating the two composite spectra.
  arXiv  Detail & Related papers  (2020-04-09T10:02:45Z)
• Resonant high-energy bremsstrahlung of ultrarelativistic electrons in the field of a nucleus and a pulsed light wave [68.8204255655161]
  Research investigates the resonant high-energy spontaneous bremsstrahlung of ultrarelativistic electrons with considerable energies in the field of a nucleus and a quasimonochromatic laser wave.
  arXiv  Detail & Related papers  (2020-04-05T16:27:11Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.