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Oxidation state of copper ions in (La0.7Sr0.3)(Mn1 − x Cux)O3 ± δ ceramics and their magnetic properties

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Abstract

Bulk ceramic samples of (La0.7Sr0.3)(Mn1 − x Cux)O3 ± δ manganites are prepared by solid-state reactions. The unit-cell parameters and Mn-O bond distances in the manganites are determined using the Rietveld profile analysis method, and their magnetic properties are studied with the use of ferromagnetic resonance measurements. The results attest to the formation of solid solutions. Their lattice parameters follow Vegard’s law. The way in which the saturation magnetization of the manganites varies with composition depends on x. For x ≤ 0.07, the saturation magnetization is a weak function of composition; for x > 0.07, it drops rapidly with increasing x. These results can be understood under the assumption that the only oxidation state of copper in (La0.7Sr0.3)(Mn1 − x Cux)O3 ± δ is 2+.

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References

  1. Von Helmolt, R., Wecker, J., Samwer, K., et al., Intrinsic Giant Magnetoresistance of Mixed Valence La-A-Mn Oxide (A = Ca, Sr, Ba), J. Appl. Phys., 1994, vol. 76, no. 10, pp. 6925–6928.

    Article  Google Scholar 

  2. Jin, S.S., Tiefel, T.H., McCormack, M., et al., Thousandfold Change in Resistivity in Magnetoresistive La-Ca-Mn-O Films, Science, 1994, vol. 264, no. 5157, pp. 413–415.

    CAS  Google Scholar 

  3. Haghiri-Gosnet, A.-M. and Renard, J.-P., CMR Manganites: Physics, Thin Films, and Devices, J. Phys. D: Appl. Phys., 2003, vol. 36, pp. R127–R150.

    Article  CAS  Google Scholar 

  4. Hwang, H.Y., Cheong, S.-W., Radaelli, P.G., et al., Lattice Effects on the Magnetoresistance in Doped LaMnO3, Phys. Rev. Lett., 1995, vol. 75, no. 5, pp. 914–917.

    Article  CAS  Google Scholar 

  5. Gor’kov, L.P. and Kresin, V.Z., Manganites at Low Temperatures and Light Doping: Band Approach and Percolation, Pis’ma Zh. Eksp. Teor. Fiz., 1998, vol. 67, no. 11, pp. 934–939.

    CAS  Google Scholar 

  6. Radaelli, P.G., Iannone, G., Marezio, M., et al., Structural Effects on the Magnetic and Transport Properties of Perovskite A1 − x A’xMnO3 (x = 0.25, 0.30), Phys. Rev. B: Condens. Matter, 1997, vol. 56, p. 8265.

    CAS  Google Scholar 

  7. Pierre, J., Nossov, A., Vassiliev, V., and Ustinov, V., A Magnetic Pair-Breaking Effects in Rare Earth-Doped Manganites, Phys. Lett. A, 1998, vol. 250, pp. 435–438.

    Article  CAS  Google Scholar 

  8. Rubinstein, M., Gillespie, D.J., Snyder, E.J., and Tritt, M.T., Effects of Gd, Co, and Ni Doping in La2/3Ca1/3MnO3: Resistivity, Thermopower, and Paramagnetic Resonance, Phys. Rev. B: Condens. Matter, 1997, vol. 56, no. 9, pp. 5412–5423.

    CAS  Google Scholar 

  9. Sun, J.R., Rao, G.H., Shen, B.G., and Wong, H.K., Doping Effects Arising from Fe and Ge for Mn in La0.7Ca0.3MnO3, Appl. Phys. Lett., 1998, vol. 73, p. 2998.

    CAS  Google Scholar 

  10. Turilli, G. and Licci, F., Relationship between Spin Order and Transport and Magnetotransport Properties in La0.67Ca0.33Mn1 − x AlxO3 Compounds, Phys. Rev. B: Condens. Matter, 1996, vol. 54, no. 18, pp. 13052–13057.

    CAS  Google Scholar 

  11. Hebert, S., Maignan, A., Martin, C., and Raveau, B., Important Role of Impurity e g Levels on the Ground State of Mn-Site Doped Manganites, Solid State Commun., 2002, vol. 121, pp. 229–234.

    CAS  Google Scholar 

  12. Yuan, S.L., Yang, Y.P., Xia, Z.C., et al., Unusual Hysteresis and Giant Low-Field Magnetoresistance in Polycrystalline Sample with Nominal Composition of La2/3Ca1/3Mn0.955Cu0.045O3, Phys. Rev. B: Condens. Matter, 2002, vol. 66, pp. 172402-1–172402-4.

    Google Scholar 

  13. Nguyen, C., Niem, P.Q., Nhat, H.N., et al., Influence of Cu Substitution for Mn on the Structure, Magnetic, Magnetocaloric, and Magnetoresistance Properties of La0.7Sr0.3MnO3 Perovskites, Physica B (Amsterdam), 2003, vol. 327, pp. 214–217.

    Google Scholar 

  14. Yuan, S.L., Tang, J., Xia, Z.C., et al., Low-Field Colossal Constant Magnetoresistance for Wide Temperature Ranges in the Sol-Gel Prepared La2/3Ca1/3Mn0.96Cu0.04O3, Solid. State Commun., 2003, vol. 127, pp. 743–747.

    CAS  Google Scholar 

  15. Ghosh, K., Ogale, S.B., Ramesh, R., et al., Transition-Element Doping Effects in La0.7Ca0.3MnO3, Phys. Rev. B: Condens. Matter, 1999, vol. 59, no. 1, pp. 533–537.

    CAS  Google Scholar 

  16. Troyanchuk, O., Khalyavin, D.D., Shapovalova, E.F., et al., Proc. 8th Eur. Magnetic Materials and Application Conf., Kyiv, 2000, p. 34.

  17. Sergeenkov, S., Ausloos, M., Vougrine, H., et al., Anomalous Temperature Behavior of Resistivity in Lightly Doped Manganites around a Metal-Insulator Phase Transition, Pis’ma Zh. Eksp. Teor. Fiz., 1999, vol. 70, no. 7, pp. 473–478.

    Google Scholar 

  18. Yuan, C.L., Zhu, Y., and Ong, P.P., The Effects of Cu Doping on the Magnetoresistive Behavior of Perovskites La0.7Ca0.3MnO3, Solid. State Commun., 2001, vol. 120, pp. 495–499.

    Article  CAS  Google Scholar 

  19. Tovstolytkin, A.I., Pogorilyi, A.N., Shypil, E.V., and Podyalovski, D.I., An Abnormal Effect of Low Level Cu Doping on the Magnetism and Conductivity of La0.7Ca0.3MnO3 − δ, Phys. Met. Metallogr., 2001, vol. 91,suppl. 1, pp. S214–S218.

    Google Scholar 

  20. Reis, M.S., Freitas, J.C.C., Orlando, M.T.D., et al., Electric and Magnetic Properties of Cu-Doped La-Sr Manganites, J. Magn. Magn. Mater., 2002, vol. 668, pp. 242–245.

    Google Scholar 

  21. Haupt, L., Helmolt, R., Sondermann, U., et al., Metal-Semiconductor Transition in the Double Exchange System La0.8Sr0.2Mn1 − x CuxO3, Phys. Lett. A, 1992, vol. 165, no. 5/6, pp. 473–479.

    CAS  Google Scholar 

  22. Pickett, W.E., Electronic Structure of the High-Temperature Oxide Superconductors, Rev. Mod. Phys., 1989, vol. 61, no. 2, pp. 433–512.

    Article  CAS  Google Scholar 

  23. Tikhonova, I.R., Phase Equilibria, Structure, and Nonstoichiometry of Mixed Oxides in the Systems La-Me-Cu-O (M = Mn, Co), Extended Abstract of Cand. Sci. (Chem.) Dissertation, Yekaterinburg, 1999, p. 9.

  24. Tikhonova, I.L., Zuev, A.Yu., and Petrov, A.N., Phase Equilibria and Crystal Structure of Phases in the System La(Sr)-Mn-Cu-O, Zh. Fiz. Khim., 1998, vol. 72, no. 10, pp. 1794–1797.

    CAS  Google Scholar 

  25. Tovstolytkin, A.I., Pogorilyi, A.N., Belous, A.G., and Yanchevski, O.Z., Unusual Substitutional Properties of Cu in Bulk Polycrystalline Samples of La0.7Ca0.3Mn1 − x CuxO3 ± δ, Low Temp. Phys., 2001, vol. 27, no. 5, pp. 366–371.

    Article  CAS  Google Scholar 

  26. Borovskikh, L.V., Mazo, G.A., and Ivanov, V.M., Determination of the Average Oxidation State of Manganese in Mixed Manganites, Vestn. Mosk. Univ., Ser. 2: Khim., 1999, vol. 40, no. 6, pp. 373–374.

    CAS  Google Scholar 

  27. Ullmann, H. and Trofimenko, N., Estimation of Effective Ionic Radii in Highly Defective Perovskite-Type Oxides from Experimental Data, J. Alloys Compd., 2001, vol. 316, pp. 153–158.

    Article  CAS  Google Scholar 

  28. Shannon, R.D., Revised Effective Ionic Radii and Systematic Studies of Interatomic Distances in Halides and Chalcogenides, Acta Crystallogr., Sect. A: Cryst. Phys., Diffr., Theor. Gen. Crystallogr., 1976, vol. 32, no. 5, pp. 751–767.

    Article  Google Scholar 

  29. Abou-Ras, D., Boujelben, W., Cheikh-Rouhou, A., et al., Effect of Strontium Deficiency on the Transport and Magnetic Properties of Pr0.7Sr0.3MnO3, J. Magn. Magn. Mater., 2001, vol. 233, pp. 147–154.

    Article  CAS  Google Scholar 

  30. Dagotto, E., Motta, T., and Moreo, A., Colossal Magnetoresistant Materials: The Key Role of Phase Separation, Phys. Rep., 2001, vol. 344, pp. 1–153.

    Article  CAS  Google Scholar 

  31. Hiroyuki Kamata, Yuki Yonemura, Yurichiro Mizusaki, et al., High Temperature Electrical Properties of the Perovskite-Type Oxide La1 − x SrxMnO3, J. Phys. Chem. Solids, 1995, vol. 56, no. 7, pp. 943–950.

    CAS  Google Scholar 

  32. Nadgorny, B., Mazin, I.I., Osofsky, M., et al., Origin of High Transport Spin Polarization in La0.7Sr0.3MnO3: Direct Evidence for Minority Spin States, Phys. Rev. B: Condens. Matter, 2001, vol. 63, pp. 184433–184437.

    Google Scholar 

  33. Coey, J.M.D. and Sanvito, S., Magnetic Semiconductors and Half-Metals, J. Phys. D: Appl. Phys., 2004, vol. 37, pp. 988–993.

    Article  CAS  Google Scholar 

  34. Urushibara, A., Moritomo, Y., Arima, T., et al., Insulator-Metal Transition and Giant Magnetoresistance in La1 − x SrxMnO3, Phys. Rev. B: Condens. Matter, 1995, vol. 51, no. 20, pp. 14103–14109.

    CAS  Google Scholar 

  35. Akimoto, T., Maruyama, Y., Moritomo, Y., and Nakamura, A., Antiferromagnetic Metallic State in Doped Manganites, Phys. Rev. B: Condens. Matter, 1998, vol. 57, no. 10, pp. 5594–5597.

    Google Scholar 

  36. Budak, S., Ozdemir, M., and Aktas, B., Temperature Dependence of Magnetic Properties of La0.67Sr0.33MnO3 Compound by Ferromagnetic Resonance Technique, Physica B (Amsterdam), 2003, vol. 339, pp. 45–50.

    CAS  Google Scholar 

  37. Rivadulla, F., Hueso, L.E., Jardon, C., et al., Effect of Porosity on FMR Linewidth of Ln0.67A0.33MnO3 (Ln = La, Pr; A = Ca, Sr), J. Magn. Magn. Mater., 1999, vols. 196–197, pp. 470–472.

    Google Scholar 

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Authors and Affiliations

  1. Vernadsky Institute of General and Inorganic Chemistry, National Academy of Sciences of Ukraine, pr. Akademika Palladina 32/34, Kiev, 03680, Ukraine

    A. G. Belous, O. I. V’yunov & O. Z. Yanchevskii

  2. Institute of Magnetism, National Academy of Sciences of Ukraine, bul’v. Vernadskogo 36b, Kiev, 03142, Ukraine

    A. I. Tovstolytkin & V. O. Golub

Authors
  1. A. G. Belous
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  2. O. I. V’yunov
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  3. O. Z. Yanchevskii
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  4. A. I. Tovstolytkin
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  5. V. O. Golub
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Original Russian Text © A.G. Belous, O.I. V’yunov, O.Z. Yanchevskii, A.I. Tovstolytkin, V.O. Golub, 2006, published in Neorganicheskie Materialy, 2006, Vol. 42, No. 3, pp. 332–339.

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Belous, A.G., V’yunov, O.I., Yanchevskii, O.Z. et al. Oxidation state of copper ions in (La0.7Sr0.3)(Mn1 − x Cux)O3 ± δ ceramics and their magnetic properties. Inorg Mater 42, 286–293 (2006). https://doi.org/10.1134/S0020168506030149

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  • DOI: https://doi.org/10.1134/S0020168506030149

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