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2007 | 5 | 4 | 637-649
Article title

Electrical characteristics of HTS/manganite double layers

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Superconductor/ferromagnetic (SC/FM) Y1Ba2Cu3O7−δ
/La0.7Sr0.3MnO3 (YBCO/LSMO) double layers were prepared on LaAlO3 substrates by magnetron sputtering and their electrical and microwave parameters were investigated at 77 K. In the theoretical plan, simple formulas for estimation of the sensitivity of the SC surface impedance to the concentration changes of normal charge carriers were proposed and the surface resistance R
S peculiarities of both SC and FM surfaces were described. Thinner YBCO/LSMO structure was characterized by lower SC parameters and higher surface resistance R
S at ∼ 4 GHz. The difference of R
S of sample SC surfaces was interpreted as due to a difference between the normal charge carrier densities in these samples. R
S of the FM surface was higher than that of the SC surface due to the microwave losses of the magnetic subsystem. A peak of the microwave losses, observed in the thicker double layer, was assumed to be caused by uniform FMR in the LSMO film.
Physical description
1 - 12 - 2007
1 - 12 - 2007
  • [1] S. Soltan, J. Albrecht and H.-U. Habermeier: “Ferromagnetic/superconducting bilayer structure: A model system for spin diffusion length estimation”, Phys. Rev. B, Vol. 70, (2004), art. 144517.
  • [2] V. Pena, Z. Sefrioui, C. Leon, J. Santamaria, M. Varela, S.J. Pennycook and J.L. Martinez: “Coupling superconductors through a half-metallic ferromagnet: Evidence for a long-range proximity effect”, Phys. Rev. B, Vol. 69, (2004), art. 224502.
  • [3] P. Przyslupski, I. Komissarov, W. Paszkowicz, P. Dluzewski, R. Minikayev and M. Sawicki: “Magnetic properies of La0.7Sr0.3MnO3/YBa2Cu3O7-δ superlattices”, Phys. Rev. B, Vol. 69, (2004), art. 134428.
  • [4] A-M. Haghiri-Gosnet and J-P. Renard: “CMR manganites:physics, thin films and devices”, J. Phys. D: Appl. Phys., Vol. 36, (2003), pp. R127–R150.[Crossref]
  • [5] K. Dorr: “Ferromagnetic manganites: spin-polarized conduction versus competing interaction”, J. Phys. D: Appl. Phys., Vol. 39, (2006), pp. R125–R150.[Crossref]
  • [6] V.M. Loktev and Yu.G. Pogorelov: “Peculiar physical properties and the colossal magnetoresistance of manganites (Review)”, Low Temperature Physics, Vol. 26, (2000), pp. 171–193.[Crossref]
  • [7] C.-Y. Kim, N. D. Mathur and M.G. Blamire: “Magnetic domain structure and lattice distortions in manganite films under tensile strain”, J. Appl. Phys., Vol. 93, (2003), pp. 8322–8324.[Crossref]
  • [8] L. Gozzelino, F. Laviano, P. Przyslupski, A. Tsarou, A. Wisniewski, D. Botta, R. Gerbaldo and G. Ghigo: “Quantative magneto-optical analysis of twinned YBa2Cu3O7-δ /La1-x SrxMnO3 bilayers”, Supercond. Sci. Technol., Vol. 19 (2006), pp. S50–S54.[Crossref]
  • [9] S.E. Lofland, V. Ray, P.H. Kim, S.M. Bhagat, M.A. Manheimer and S.D. Tyagi: “Magnetic phase transition in La0.7Sr0.3MnO3: Microwave absorption studies”, Phys. Rev. B, Vol. 55, (1997), pp. 2749–2751.
  • [10] A. Schwartz, M. Scheffler and S. Anlage: “Determination of the magnetization scaling exponent for single-crystal La0.8Sr0.2MnO3 by broadband microwave surface impedance measurements”, Phys. Rev. B, Vol. 61, (2000), pp. R870–R873.
  • [11] D.L. Lyfar, S.M. Ryachenko, V.N. Krivoruchko, S.I. Khartsev and A.M. Grishin: “Microwave absorption in a thin La0.7Sr0.3MnO3 film: Manifestation of colossal magnetoresistance”, Phys. Rev. B, Vol. 69, (2004), art. 100409.
  • [12] M. Terakago, S. Mine, T. Sakatani, S. Hontsu, H. Nishikawa, M. Nakamori, H. Tabata and T. Kawai: “Superconducting magnetostatic wave devices using HTS/perovskite-type manganite PCMO heterostructures”, Supercond. Sci. Technol., Vol. 14, (2001), pp. 1140–1143.[Crossref]
  • [13] T. Nurgaliev, B. Blagoev, T. Donchev, S. Miteva, P.B. Mozhaev, J.E. Mozhaeva, G.A. Ovsyannikov, I.M. Kotelyanskii and C. Jacobsen: “YBCO/manganite layered structures on NdGaO3 substrates”, Journal of Physics: Conference Series, Vol. 43, (2006), pp. 329–332.[Crossref]
  • [14] A. Pimenov, A. Loidl, P. Przyslupski and B. Dabrowski: “Negative Refraction in Ferromagnet-Superconductor Superlattices”, Phys. Rev. B, Vol. 95, (2005), art. 247009.
  • [15] J.D. Pedaring, R. Rossler, M.P. Delamare, W. Lang, D. Bauerle, A. Kohler and H.W. Zandbergen: “Electrical properties, texture, and microstructure of vicinal YBa2Cu3O7-δ thin films”, Appl. Phys. Lett., Vol. 81, (2002), pp. 2587–2589.[Crossref]
  • [16] Z. Sefrioui, M. Varela, V. Pena, C. Leon, J. Santamaria, J.E. Villegas, J.L. Martinez, W. Saldarriaga and P. Prieto: “Superconductivity depression in ultrathin YBa2Cu3O7-δ layers in La0.7Sr0.3MnO3/YBa2Cu3O7-δ superlattices”, Appl. Phys. Letters, Vol. 81, (2002), pp. 4568–4570.
  • [17] O.G. Vendik, I.B.V. Vendik, D.I. Kaparkov: “Emperical model of microwave properties of high-temperature superconductors”, IEEE Trans. Microwave Theory Tech., Vol. 46, (1998), pp. 469–477.[Crossref]
  • [18] K. Steenbeck and R. Hiergeist: “Magnetic anisotropy of ferromagnetic La0.7Sr0.3MnO3 epitaxial films”, Appl. Phys. Lett., Vol. 75, (1999), pp. 1–3.
  • [19] B. Lax and K.J. Button: Microwave ferrites and ferromagnetics, McGraw-Hill Book Company, INC., New York, 1962.
  • [20] M. Farle: “Ferromagnetic resonance in ultrathin metallic layers”, Rep. Prog. Phys., Vol. 61, (1998), pp. 755–786.[Crossref]
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