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Abstracts
We have investigated the structure, and electric, optical, and magnetic properties of LaSr(Ca)MnO films containing atomic clusters of various types coherently built into the basic crystallographic matrix. Below the transition to the metallic state, the electrical conductivity of the films is determined by tunneling of charge carriers between metallic clusters. We have found that for each sample there exists a threshold value of magnetic ordering, above which the magnetic subsystem starts to affect actively the film conductivity. The observed increase of conductivity with decreasing temperature is caused by the fact that in the process of magnetic ordering of the samples the cluster size and concentration of metallic phase increase. Experimental results are in agreement with theoretical calculations.
Discipline
- 61.50.Ks: Crystallographic aspects of phase transformations; pressure effects(see also 81.30.Hd in materials science)
- 75.47.Lx: Magnetic oxides
- 75.30.Kz: Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.)(for ferroelectric phase transitions, see 77.80.B-; for superconductivity phase diagrams, see 74.25.Dw)
Journal
Year
Volume
Issue
Pages
121-126
Physical description
Dates
published
2004-01/02
received
2003-09-15
Contributors
author
- A. Galkin Donetsk Institute for Physics & Technology, National Academy of Sciences of Ukraine, Donetsk, Ukraine
author
- A. Galkin Donetsk Institute for Physics & Technology, National Academy of Sciences of Ukraine, Donetsk, Ukraine
author
- A. Galkin Donetsk Institute for Physics & Technology, National Academy of Sciences of Ukraine, Donetsk, Ukraine
author
- Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland
author
- Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland
author
- Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland
author
- Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland
author
- Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland
author
- Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland
References
- 1. J.M.D. Coey, M. Viret, S. von Molnar, Adv. Phys., 48, 167, 1999
- 2. M.B. Salamon, M. Jaime, Rev. Mod. Phys., 73, 583, 2001
- 3. S.V. Trukhanov, I.O. Troyanchuk, N.V. Pushkarev, H. Szymczak, JETP, 95, 308, 2002
- 4. H.L. Ju, Hyunchul Sohn, J. Magn. Magn. Mater., 167, 200, 1997
- 5. S.H. Chun, Y. Lyanda-Geller, M.B. Salamon, R. Suryanarayanan, G. Dhalenne, A. Revcolevschi, J. Appl. Phys., 90, 6307, 2001
- 6. N.G. Bebenin, R.I. Zanullina, V.V. Mashkautsan, V.S. Gaviko, V.V. Ustinov, Ya.M. Mukovski, D.A. Shulyatev, JETP, 90, 1027, 2000
- 7. Guo-meng Zhao, V. Smolyaninova, W. Prellier, H. Keller, Phys. Rev. Lett., 84, 6086, 2000
- 8. V.D. Okunev, Z.A. Samoilenko, V.M. Svistunov, A. Abal'oshev, E. Dinowska, P. Gierlowski, A. Klimov, S.J. Lewandowski, J. Appl. Phys., 85, 7282, 1999
- 9. Z.A. Samolenko, V.D. Okunev, E.I. Pushenko, T.A. D'yachenko, A. Cherenkov, P. Gierlowski, S.J. Lewandowski, A. Abal'oshev, A. Klimov, A. Szewczyk, Techn. Phys., 48, 250, 2003
- 10. N.F. Mott, Metal-Insulator Transitions, Taylor and Francis, London 1990
- 11. A.B. Khanikaev, A.B. Granovski, J.P. Clerc, Phys. Solid State, 44, 1611, 2002
- 12. V.D. Okunev, Z.A. Samoilenko, A. Abal'oshev, M. Berkowski, P. Gierlowski, S.J. Lewandowski, A. Szewczyk, H. Szymczak. R. Szymczak, to be published
- 13. V.D. Okunev, Z.A. Samoilenko, T.A. D'yachenko, R. Szymczak, S.J. Lewandowski, H. Szymczak, M. Baran, P. Gierlowski, Phys. Solid State, in print 2003
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv105n122kz