PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

Computer program superposition model - Monte Carlo (SPM-MC) and its applications in EMR studies of transition ions at low symmetry sites Fe3+ doped YAP crystals

Treść / Zawartość
Identyfikatory
Warianty tytułu
Konferencja
Electron Magnetic Resonance Forum EMR-PL (2; 16-18.05.2013; Częstochowa-Hucisko, Poland )
Języki publikacji
EN
Abstrakty
EN
An extension of the computer program superposition model-Monte Carlo (SPM-MC), designed for modelling of the spectroscopic and structural properties of transition ions at low symmetry sites in crystals, is presented. Special focus is put on two aspects. The first aspect concerns the effects of variation of the superposition model (SPM) parameters, i.e. the intrinsic parameters (b2, b4) and power low exponents (t2, t4), on the quality of fittings of experimental data and theoretical predictions. This enables to increase the reliability of the modelling results. The second aspect concerns the implications of low site symmetry on modelling of the pertinent properties. Applications of the program SPM-MC to Fe3+ ions at the triclinic (Ci) symmetry sites in YAlO3 (YAP) crystals are considered.
Czasopismo
Rocznik
Strony
397--400
Opis fizyczny
Bibliogr. 16 poz., rys.
Twórcy
autor
  • Institute of Physics, University of Rzeszów, 16a Rejtana Str., 35-310 Rzeszów, Poland, Tel.: +48 17 872 1094, Fax: +48 872 1283
autor
  • Institute of Physics, West Pomeranian University of Technology, 17 Piastów Ave., 70-310 Szczecin, Poland
Bibliografia
  • 1. Abragam A, Bleaney B (1986) Electron paramagnetic resonance of transition ions. Dover Publications, New York
  • 2. Diehl R, Brandt G (1975) Crystal structure refinement of YAlO3, a promising laser material. Mater Res Bull 10:85–90
  • 3. Müller KA, Berlinger W (1983) Superposition model for sixfold-coordinated Cr3+ in oxide crystals. J Phys C 16:6861–6874
  • 4. Newman DJ, Ng B (1989) The superposition model of crystal fields. Rep Prog Phys 52:699–763
  • 5. Newman DJ, Urban W (1975) Interpretation of S-state ion E.P.R. spectra. Adv Phys 24:793–844
  • 6. Rudowicz C (1985) Transformation relations for the conventional Ok q and normalized O’k q Stevens operator equivalents with k = 1 to 6 and –k ≤ q ≤ +k. J Phys C 18:1415–1430; (1985) Erratum: ibidem 18:3837
  • 7. Rudowicz C (1987) Concept of spin Hamiltonian, forms of zero-field splitting and electronic Zeeman Hamiltonians and relations between parameters used in EPR. A critical review. Magn Res Rev 13:1–89; (1988) Erratum, ibidem 13:335
  • 8. Rudowicz C (1987) On the derivation of the superposition model formulas using the transformation relations for the Stevens operators. J Phys C 20:6033–6037
  • 9. Rudowicz C (2000) On the relations between the zero-field splitting parameters in the extended Stevens operator notation and the conventional ones used in EMR for orthorhombic and lower symmetry. J Phys: Condens Matter 12:L417–L423
  • 10. Rudowicz C, Chung CY (2004) The generalization of the extended Stevens operators to higher ranks and spins, and a systematic review of the tables of the tensor operators and their matrix elements. J Phys: Condens Matter 16:5825–5847
  • 11. Rudowicz C, Gnutek P (2009) Modeling techniques for analysis and interpretation of electron magnetic resonance (EMR) data for transition ions at low symmetry sites in crystals. A primer for experimentalists. Physica B 404:3582–3593
  • 12. Rudowicz C, Misra SK (2001) Spin-Hamiltonian formalisms in electron magnetic resonance (EMR) and related spectroscopies. Appl Spect Rev 36:11–63
  • 13. Siegel E, Müller KA (1979) Local position of Fe3+ in ferroelectric BaTiO3. Phys Rev B 20:3587–3596
  • 14. Stefaniuk I, Rudowicz C (2010) Computer program SPM-MC and its applications in EMR studies of transition ions in crystals. Curr Top Biophys 33;Suppl A:217–220
  • 15. Stefaniuk I, Rudowicz C, Gnutek P, Suchocki A (2009) EPR Study of Cr3+ and Fe3+ impurity ions in nominally pure and Co2+-doped YAlO3 single crystals. Appl Magn Res 36:371–380
  • 16. Yeom TH, Chang YM, Choh SH, Rudowicz C (1994) Experimental and theoretical investigation of spin Hamiltonian parameters for the low symmetry Fe3+ centre in LiNbO3. Phys Status Solidi B 185:409–415
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-a1a24c40-1718-46e1-a1cd-996db61db05b
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.