A5032558717- Luminescence Properties of Advanced Materials
- Solid-state spectroscopy and crystallography
- Lanthanide and Transition Metal Complexes
- Magnetism in coordination complexes
- Crystal Structures and Properties
- Advanced Condensed Matter Physics
- Glass properties and applications
- Electron Spin Resonance Studies
- Inorganic Fluorides and Related Compounds
- Solid State Laser Technologies
- Perovskite Materials and Applications
- Photorefractive and Nonlinear Optics
- Multiferroics and related materials
- Magnetic and transport properties of perovskites and related materials
- Advanced NMR Techniques and Applications
- Physics of Superconductivity and Magnetism
- Organic and Molecular Conductors Research
- Theoretical and Computational Physics
- Ferroelectric and Piezoelectric Materials
- Nonlinear Optical Materials Research
- Surface Roughness and Optical Measurements
- TiO2 Photocatalysis and Solar Cells
- Metalloenzymes and iron-sulfur proteins
- History and advancements in chemistry
- Spectroscopy and Quantum Chemical Studies
West Pomeranian University of Technology
2014-2024
University of Szczecin
2006-2009
An analysis of the energy level structure Cr3+ ions in Cs2NaAlF6 crystal is performed using exchange charge model (ECM) together with field analysis/microscopic spin Hamiltonian (CFA/MSH) computer package. Utilizing data, our approach enables modelling parameters (CFPs) and thus for at two crystallographically inequivalent sites Cs2NaAlF6. Using ECM initial adjustment procedure, CFPs are calculated crystallographic axis system centred ion each site. Additionally also superposition (SPM). The...
The local structure and the spin Hamiltonian (SH) parameters, including zero-field-splitting (ZFS) parameters D (a+2F/3), Zeeman g factors [Formula: see text] text], are theoretically investigated for Fe(K)(3+)-O(I)(2-) center in KTaO(3) crystal. microscopic SH (MSH) modeled within framework of crystal field (CF) theory employing CF analysis (CFA) package, which also incorporates MSH modules. Our approach takes into account spin-orbit interaction as well spin-spin spin-other-orbit...
We review applications of the superposition model (SPM) in EMR area, which enables semi-empirical modeling zero-field splitting (ZFS) parameters (ZFSPs) for transition ions crystals by separation geometrical and physical information. Nomenclature used ZFS crystal field (CF) Hamiltonians is presented to expose common framework underlying two independent implementations: SPM/ZFS SPM/CF, require distinct parameters. SPM/ZFSP area S-state 3d5 (4f7) 3dN with orbital singlet ground state are...
This paper elucidates some subtle properties of the orthorhombic and monoclinic symmetry crystal-field (CF) Hamiltonians $({H}_{\mathrm{CF}})$, which are not fully understood by authors. These bear on interpretation experimental data obtained in, e.g., optical spectroscopy, inelastic neutron scattering, magnetic susceptibility measurements. Our reanalysis CF parameters (CFPs) is based application standardization idea as well dataset closeness. The closeness any two CFP sets may be...
The crystal-field (CF) parameters determined by various authors for rare-earth ions at monoclinic sites in AB(WO(4))(2) crystals are reanalyzed using a methodology incorporating several approaches, namely standardization, multiple-correlated fitting technique and closeness of CFP sets. In Part I recent spectroscopic data Tm(3+) KGd(WO(4))(2) (KGdW) KLu(WO(4))(2) (KLuW), Ho(3+) Er(3+) KGdW, which were interpreted the free-ion (FI) CF parameter (CFP) sets, thoroughly revisited. Our reanalysis...
Experimental spectroscopic and magnetic data for Co2+(3d7) ions in various systems are reviewed critically examined. The focus is on Co2+ with the electronic spin S = 3/2, properties of which may be interpreted using Hamiltonian effective S̃ 3/2 or fictitious ‘spin’ (S′) ½. Possible distinct ground states arising from crystal field energy levels discussed. Distinctions between concepts S′ outlined to clarify terminological confusion encountered literature. Sample cases state assignments...