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ZnO:Co diluted magnetic semiconductor or hybrid nanostructure for spintronics?

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Abstract

We have studied the influence of intrinsic and extrinsic defects in the magnetic and electrical transport properties of Co-doped ZnO thin films. X-ray absorption measurements show that Co substitute Zn in the ZnO structure and it is in the 2+ oxidation state. Magnetization (M) measurements show that doped samples are mainly paramagnetic. From M vs. H loops measured at 5 K we found that the values of the orbital L and spin S numbers are between 1 and 1.3 for L and S = 3/2, in agreement with the representative values for isolated Co 2+. The obtained negative values of the Curie–Weiss temperatures indicate the existence of antiferromagnetic interactions between transition metal atoms.

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References

  1. Dietl T, Ohno H, Matsukura F, Cibert J, Ferand D (2000) Science 287:1019

    Article  CAS  ADS  PubMed  Google Scholar 

  2. Ueda K, Tabata H, Kawai T (2001) Appl Phys Lett 79:988

    Article  CAS  ADS  Google Scholar 

  3. Kim HK, Yhm Y, Choo W (2002) Appl Phys 92:6066

    Article  CAS  Google Scholar 

  4. Venkatesan M, Fitzgerald C, Luney JG, Coey JMD (2004) Phys. Rev. Lett 93:177206

    Article  CAS  ADS  PubMed  Google Scholar 

  5. Yu CF, Lin TJ, Chou H (2007) J Phys D Appl Phys 40:6497

    Article  CAS  ADS  Google Scholar 

  6. Ney A, Ollefs K, Ye S, Kammermeier T, Ney V, Kaspar TC, Chambers F, Whilhem SA, Rogalev A (2008) Phys Rev Lett 100:157201

    Article  CAS  ADS  PubMed  Google Scholar 

  7. Paterson H (2006) Phys Rev B 74:144432

    Article  ADS  Google Scholar 

  8. Dietl T, Andrearczyk A, Tand Lipiska, Kiecana M, Tay M, Wu Y (2007) Phys Rev B 76:155312

    Article  ADS  Google Scholar 

  9. Coey JMD, Venkatesan M, Fitzgeral C (2005) Nat Mater 4:173

    Article  CAS  ADS  PubMed  Google Scholar 

  10. Alaria J, Cheval N, Rode K, Venkatesan M, Coey JMD (2008) J Phys D Appl Phys 41:135004

    Article  ADS  Google Scholar 

  11. Andrearczyk T, Jaroszynski J, Grabecki G, Dietl T, Fukumura T, Kawasaki M (2005) Phys Rev B 72:121 309 (R)

    Article  Google Scholar 

  12. Sawicki M, Dietl T, Kossut J, Igalson J, Wojtowicz T, Plesiewicz W (1986) Phys Rev Lett 56:508

    Article  CAS  ADS  PubMed  Google Scholar 

  13. Sati P, Deparis C, Morhain C, Schafer S, Stepanov A (2007) Phys Rev Lett 98:137204

    Article  CAS  ADS  PubMed  Google Scholar 

Download references

Acknowledgements

This work has been supported by CIUNT under Grants 26/E439, by ANPCyT-PICTR 20770, 35682 and by PROALAR-DAAD DA0805.

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Authors and Affiliations

  1. Laboratorio de Ablación Láser, Departamento de Física, Facultad de Ingeniera, Universidad de Buenos Aires, Buenos Aires, Argentina

    F. Golmar

  2. Laboratorio de Física del Sólido, Departamento de Física, Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán, CONICET, Tucumán, Argentina

    M. Villafuerte

  3. Departamento de Fisica-IFLP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CONICET, La Plata, Argentina

    A. Mudarra Navarro & C. E. Rodríguez Torres

  4. Division of Superconductivity and Magnetism, Institut für Experimentelle Physik II, Universität, Leipzig, Germany

    J. Barzola-Quiquia & P. Esquinazi

  5. Laboratorio de Física del Sólido, Departamento de Física, Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán, Tucumán, Argentina

    S. P. Heluani

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  1. F. Golmar
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  2. M. Villafuerte
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  3. A. Mudarra Navarro
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  4. C. E. Rodríguez Torres
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  5. J. Barzola-Quiquia
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  6. P. Esquinazi
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  7. S. P. Heluani
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Correspondence to S. P. Heluani.

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Golmar, F., Villafuerte, M., Mudarra Navarro, A. et al. ZnO:Co diluted magnetic semiconductor or hybrid nanostructure for spintronics?. J Mater Sci 45, 6174–6178 (2010). https://doi.org/10.1007/s10853-010-4710-2

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  • DOI: https://doi.org/10.1007/s10853-010-4710-2

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