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Konferencja
Electron Magnetic Resonance Forum EMR-PL (2; 16-18.05.2013; Częstochowa-Hucisko, Poland )
Języki publikacji
Abstrakty
X-band electron paramagnetic resonance (EPR) investigations of Mn2+-doped guanidine zinc sulphate [C(NH2)3]2Zn(SO4)2 – abbreviated as GZS – are presented. The EPR spectrum in the temperature range 273–393 K exhibits a group of five fine structure transitions each splits into six hyperfine components. The angular variation of EPR spectra reveals the presence of only one magnetic complex, which correspond to one distinct site of Mn2+ ions in the crystal lattice. From the observed EPR spectrum, the spin-Hamiltonian parameters have been evaluated. The variation of zero-field splitting (ZFS) parameter, intensity and line width with temperature are measured and discussed.
Czasopismo
Rocznik
Tom
Strony
387--390
Opis fizyczny
Bibliogr. 18 poz., rys.
Twórcy
autor
- Institute of Physics, Częstochowa University of Technology, 19 Armii Krajowej Ave., 42-200 Częstochowa, Poland, Tel./Fax: +48 34 325 0795,
autor
- Institute of Physics, Częstochowa University of Technology, 19 Armii Krajowej Ave., 42-200 Częstochowa, Poland, Tel./Fax: +48 34 325 0795,
autor
- Institute of Physics, Częstochowa University of Technology, 19 Armii Krajowej Ave., 42-200 Częstochowa, Poland, Tel./Fax: +48 34 325 0795,
autor
- Institute of Experimental Physics, University of Wrocław, 8 M. Borna Sq., 50-204 Wrocław, Poland
Bibliografia
- 1. Abragam A, Bleaney B (1970) Electron paramagnetic resonance of transition ions. Clarendon Press, Oxford
- 2. Bushiri MJ, Antony CJ, Fleck M (2008) Raman and infrared spectral studies of [C(NH2)3]2MII(H2O)4(SO4)2, MII =Mn, Cd and VO. J Raman Spectrosc 39:368–373
- 3. Carter G, Spichiger D, Tregenna-Piggott PLW (2005) Electronic Raman spectroscopy of the vanadium(III) hexaaqua cation in guanidinium vanadium sulphate: Quintessential manifestation of the dynamical Jahn-Teller effect. J Chem Phys 122:124511–124518
- 4. Czapla Z, Komar J, Marciniszyn T, Poprawski R (2011) Phase transition and anisotropic conductivity in guanidine zinc sulfate crystals. Solid State Ionics 196:25–29
- 5. Fleck M, Bohaty L, Tillmanns E (2004) Structural characterisation of MII guanidinium sulphate hydrates (MII =Mn, Fe, Co, Ni, Cd, VO). Solid State Sci 6:469–477
- 6. Gopal NO, Narasimhulu KV, Rao JL (2002) EPR and IR spectral studies of Mn2+ in nickel meleate tetrahydrate single crystals. J Phys Chem Solids 63:295–302
- 7. Grachev VG (1998) Visual EPR program v. 2.08. Osnabrück, Fachbereich Physik, Universität Osnabrück
- 8. Haussühl S, Bohatý L, Grazel U (1984) Elastic, electrostrictive, electro-optic, and nonlinear optical properties of tetragonal zinc guanidinium sulfate, Zn[C(NH2)3]2(SO4)2. Z Kristallogr 167:307–309
- 9. Holden AN, Matthias BT, Merz WJ, Remeika JP (1955) New class of ferroelectrics. Phys Rev 98:546
- 10. Morimoto CN, Lingafelter EC (1970) The crystal structure of zine guanidinium sulphate. Acta Crystallogr B 26:335–341
- 11. Nemec I, Machackova Z, Teubner K, Cisarova I, Vanek P, Micka Z (2004) The structural phase transitions of aminoguanidinium(1+) dihydrogen phosphate – study of crystal structures, vibrational spectra and thermal behaviour. J Solid State Chem 177:4655–4664
- 12. Rao Lakshmana J, Deva Prasad Raju B, Gopal NO, Narasimhulu KV (2005) Electron paramagnetic resonance and optical absorption studies on Mn2+ ions doped in KZnClSO4*3H2O single crystals. Acta Phys B 355:207–215
- 13. 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
- 14. Saraswat RS, Upreti GC (1976) Electron paramagnetic resonance of Mn2+ in ZnSO4·7H2O single crystals. Phys Status Solidi B 78;2:K73–K75
- 15. Shiyamala C, Venkatesan R, Sambasiva Rao P (2003) Single crystal EPR studies of Mn(II) doped zinc sodium sulphate hexahydrate: a case of interstitial substitution. J Phys Chem Solids 64:2329–2335
- 16. Šimánek E, Müller KA (1970) Covalency and hyperfine structure constant A of iron group impurities in crystals. J Phys Chem Solids 31:1027–1040
- 17. Sivashaukar V, Siddheswaran R, Bharthasarathi T, Murugakoothan P (2009) Growth and characterization of new semiorganic nonlinear optical zinc guanidinium sulfate single crystal. J Cryst Growth 311:2709–2713
- 18. Szafrański M (2005) Ferroelectricity in the guanidinium compound [C(NH2)3]4Cl2SO4: Synthesis and characterization. Phys Rev B 72:054122–054132
Typ dokumentu
Bibliografia
Identyfikator YADDA
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