Surface Magnetic Anisotropy of Epitaxial La_{0.7}Mn_{1.3}O_{2.84} Thin Films

• Authors: P. Aleshkevych , M. Baran , V. Dyakonov , R. Szymczak , H. Szymczak , K. Baberschke , J. Lindner , K. Lenz
• Languages of publication: EN

Abstracts

EN

A spin-wave resonance technique was used to collect information on elementary magnon excitations in high quality epitaxial La_{0.7}Mn_{1.3}O_{2.84} films prepared by dc-magnetron sputtering. It was found that besides bulk spin-wave modes, the spin-wave resonance spectrum includes also the surface spin waves. The value of spin-wave stiffness constant D=156 meV·Å^2 was found. The values of the surface magnetic anisotropy on both surfaces and their angular dependence were determined. The experimentally found spin-wave resonance spectra were explained based on the surface-inhomogeneity model. The effect of surface anisotropy on the spin-wave excitation conditions in epitaxial La_{0.7}Mn_{1.3}O_{2.84} films was investigated. Spin-wave resonance data give an indirect evidence of periodic charge-ordered stripes formation.

Keywords

EN

76.50.+g; 75.70.-i

Discipline

• 75.70.-i: Magnetic properties of thin films, surfaces, and interfaces(for magnetic properties of nanostructures, see 75.75.-c)
• 76.50.+g: Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance(see also 75.30.Ds Spin waves)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2006
• Volume: 110
• Issue: 1
• Pages: 57-70

Dates

published

2006-07

received

2005-09-14

(unknown)

2006-01-30

(unknown)

2006-05-31

Contributors

author

P. Aleshkevych

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

M. Baran

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

V. Dyakonov

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

R. Szymczak

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

H. Szymczak

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

K. Baberschke

• Institute für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany

author

J. Lindner

• Institute für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany

author

K. Lenz

• Institute für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany

References

• 1. A.P. Ramirez, J. Phys., Condens. Matter, 9, 8171, 1997
• 2. J.M.D. Coey, M. Viret, S. Molnar, Adv. Phys., 48, 167, 1999
• 3. J.B. Goodenough, in: Handbook on the Physics and Chemistry of Rare Earths, Ed. K.A. Gschneidner, Elsevier Science B.V., Vol. 33, Amsterdam 2003, p. 249
• 4. E.O. Wollan, W.C. Koehler, Phys. Rev., 100, 545, 1955
• 5. J.A.M. Roosmalen, E.H.P. Cordfunke, R.B. Helmholdt, H.W. Zandbergen, J. Solid State Chem., 110, 100, 1994
• 6. V.N. Krivoruchko, S.I. Khartsev, A.D. Prokhorov, V.I. Kamenev, R. Szymczak, M. Baran, M. Berkowski, J. Magn. Magn. Mater., 207, 168, 1999
• 7. V.P. Pashchenko, S.I. Khartsev, O.P. Cherenkov, A.A. Shemyakov, Z.A. Samoilenko, A.D. Loiko, V.I. Kamenev, Inorg. Mater., 35, 1294, 1999
• 8. I.O. Troyanchuk, V.A. Khomchenko, A.N. Chobot, H. Szymczak, J. Phys., Condens. Matter, 15, 6005, 2003
• 9. E.L. Nagaev, Usp. Fiz. Nauk, 166, 833, 1966
• 10. E. Dagotto, T. Hotta, A. Moreo, Phys. Rep., 344, 1, 2001
• 11. L.P. Lev, P. Gor'kov, V.Z. Kresin, Phys. Rep., 400, 149, 2004
• 12. E. Dagotto, A. Moreo, J. Magn. Magn. Mater., 226-230, 763, 2001
• 13. P. Aleshkevych, J. Lindner, K. Baberschke, V. Dyakonov, H. Szymczak, R. Szymczak, Phys. Status Solidi A, 196, 93, 2003
• 14. V. Dyakonov, A. Prokhorov, V. Shapovalov, V. Krivoruchko, V. Paschenko, E. Zubov, V. Mikhailov, P. Aleshkevych, M. Berkowski, S. Piechota, H. Szymczak, J. Phys., Condens. Matter, 13, 4049, 2001
• 15. P. Murugavel, C. Narayana, A.K. Sood, S. Parashar, A.R. Raju, C.N.R. Rao, Europhys. Lett., 52, 461, 2000
• 16. C. Narayana, J. Indian Inst. Sci., 82, 103, 2002
• 17. S.E. Lofland, S.M. Bhagat, C. Kwon, M.C. Robson, R. Ramesh, R.P. Sharma, T. Venkatesan, Phys. Lett. A, 209, 246, 1995
• 18. M.C. Robson, C. Kwon, K.-C. Kim, R.P. Sharma, T. Venkatesan, S.E. Lofland, S.M. Bhagat, R. Ramesh, M. Dominguez, S.D. Tyagi, J. Appl. Phys., 80, 2334, 1996
• 19. J. Yin, Y.X. Sui, J.H. Du, Y.X. Zhang, X.Y. Liu, Z.G. Liu, Phys. Status Solidi A, 174, 499, 1998
• 20. P. Aleshkevych, M. Baran, H. Szymczak, Acta Phys. Pol. A, 106, 593, 2004
• 21. V.N. Krivoruchko, S.I. Khartsev, Low Temp. Phys., 24, 803, 1998
• 22. H. Puszkarski, Prog. Surf. Sci., 9, 191, 1979
• 23. H. Puszkarski, Solid State Commun., 22, 563, 1977
• 24. C. Kittel, Phys. Rev., 110, 1295, 1958
• 25. J.F. Mitchell, D.N. Argyriou, C.D. Potter, D.G. Hinks, J.D. Jorgensen, S.D. Bader, Phys. Rev. B, 54, 6172, 1996
• 26. W.-N. Wang, Z.-S. Jiang, Y.-W. Du, J. Appl. Phys., 78, 6679, 1995
• 27. L.J. Maksymowicz, D. Sendorek, J. Magn. Magn. Mater., 37, 177, 1983
• 28. H. Dulli, P.A. Dowben, S.-H. Liou, E.W. Plummer, Phys. Rev. B, 62, R14629, 2000
• 29. J.-H. Park, E. Vescovo, H.-J. Kim, C. Kwon, R. Ramesh, T. Venkatesan, Phys. Rev. Lett., 81, 1953, 1998
• 30. J. Choi, J. Zhang, S.-H. Liou, P.A. Dowben, E.W. Plummer, Phys. Rev. B, 59, 13453, 1999
• 31. M.P. de Jong, I. Bergenti, V.A. Dediu, M. Fahlman, M. Marsi, C. Taliani, Phys. Rev. B, 71, 014434, 2005

Identifiers

DOI

10.12693/APhysPolA.110.57