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EPR study of ZnO:Co thin films grown by the PLD method

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
We have studied magnetic properties of zinc-oxide composite doped with a relatively high concentration (4%) of Co ions. Samples were obtained by the pulsed laser deposition (PLD) method with different parameters of the laser ablation. For various samples, the power of laser was changed as well as the temperature of sample heating. Electron paramagnetic resonance (EPR) measurements were carried out and temperature dependence of the EPR spectra was obtained. Analysis of the temperature dependences of the integral intensity of EPR spectra was carried out using the Curie-Weiss law. Fitting yields the following values θCW = 150 K and C = 1.6710, where C is the Curie constant, and θCW is the paramagnetic Curie temperature.
Czasopismo
Rocznik
Strony
359--363
Opis fizyczny
Bibliogr. 34 poz., rys.
Twórcy
autor
  • Institute of Physics, University of Rzeszów, 16a Rejtana Str., 35-310 Rzeszów, Poland, Tel.: +48 17 872 1094, Fax: +48 17 872 1283
autor
  • Institute of Physics, University of Rzeszów, 16a Rejtana Str., 35-310 Rzeszów, Poland, Tel.: +48 17 872 1094, Fax: +48 17 872 1283
autor
  • Institute of Physics, University of Rzeszów, 16a Rejtana Str., 35-310 Rzeszów, Poland, Tel.: +48 17 872 1094, Fax: +48 17 872 1283
Bibliografia
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  • 4. Dietl T (2007) Origin of ferromagnetic response in diluted magnetic semiconductors and oxides. J Phys: Condens Matter 19:165204
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  • 6. Dobrowolski W, Kossut J, Story T (2003) II-VI and IV-VI diluted magnetic semiconductors – new bulk materials and low dimensional quantum structures. In: Buschow KHJ (ed) Handbook of magnetic materials. Vol. 15. Elsevier, The Netherlands, pp 289–378
  • 7. Dyck JS, Drašar Č, Lošt’ák P, Uher C (2005) Low-temperature ferromagnetic properties of the diluted magnetic semiconductor Sb2–xCrxTe3. Phys Rev B 71:115214
  • 8. Furdyna JK (1988) Diluted magnetic semiconductors. J Appl Phys 64:R29 (36 pp)
  • 9. Huber DL, Alejandro G, Caneiro A et al. (1999) EPR linewidths in La12xCaxMnO3: 0 < x < 1. Phys Rev B 60:12155–12161
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  • 12. Kim JH, Kim H, Ihm YE, Choo WK (2002) Magnetic properties of epitaxially grown semiconducting Zn1–xCoxO thin films by pulsed laser deposition. J Appl Phys 92:6066–6071
  • 13. Lee E-C, Chang KJ (2004) Ferromagnetic versus antiferromagnetic interaction in Co-doped ZnO. Phys Rev B 69:085205
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-d412d990-87f1-4fb3-9fdd-a9a092326fd0
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