Jahn–Teller Effect, Crystal Structure and High Temperature Raman Spectroscopy Studies of Ba_2-xSr_xCuWO₆ (0 ≤ x≤ 2) Double Perovskite Oxide.

Amine Ezzahi, Abdellah Elmchaouri

Chemistry Physics & Chemistry Bioorganic Laboratory, College of Science and Technology, Mohammedia, Morocco.

DOI: 10.4236/ampc.2014.44009                

Abstract

The following article has been retracted due to the investigation of complaints received against it. The Editorial Board found that there are conflicts of interests among the authors. The scientific community takes a very strong view on this matter, and the Advances in Materials Physics and Chemistry treats all unethical behaviors seriously. This paper published in Vol. 4 No. 4 61-74, 2014 has been removed from this site.

Title: Jahn–Teller Effect, Crystal Structure and High Temperature Raman Spectroscopy Studies of Ba2-xSrxCuWO6 (0 ≤ x≤ 2) Double Perovskite Oxide.

Authors: Amine Ezzahi, Abdellah Elmchaouri

Keywords

Jahn–Teller, Rietveld, X-ray Diffraction, Double Perovskites, BaSrCuWO₆.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Mitchell, R.H. (2002) Perovskites: Modern and Ancient. Al-Maz Press, Thunder Bay.
[2]	Raveau, B. (2007) The Perovskite History: More than 60 Years of Research from the Discovery of Ferroelectricity to Colossal Magnetoresistance via High TC Superconductivity. Solid State Chemistry, 35, 171-173. http://dx.doi.org/10.1016/j.progsolidstchem.2007.04.001
[3]	Reinen, D., Weitzel, H. And Anorg, Z. (1976) The Crystal Structure of Cu2+-Containing Oxidic Elpasolites. Neutron Diffraction Studies of the Crystal Powders. Journal of Inorganic and General Chemistry, 31, 424.
[4]	Bokhimi (1992) Structure of the M2CuWO6 System, with M = Ba or Sr. Powder Diffraction, 7, 228-230.
[5]	Iwanaga, D., Inaguma, Y. and Itoh, M. (1999) Crystal Structure and Magnetic Properties of B-Site Ordered Perovskite-Type Oxides A2CuB'O6 (A=Ba, Sr; B'=W, Te). Journal of Solid State Chemistry, 147, 291-295.
[6]	Todate, Y. (2001) Antiferromagnetism and Frustration in Ba2CuWO6. Journal of the Physical Society of Japan, 70, 337-340. http://dx.doi.org/10.1143/JPSJ.70.337
[7]	Reinen, D., Wellern, H.O. and Wegwerth, J. (1997) Jahn-Teller-Type Phase Transitions in Oxide Ceramics and Other Solids with Cu(II)—From the Viewpoint of a Solid State Chemist. Zeitschrift für Physik B Condensed Matter, 104, 595-600.
[8]	Jahn, H. and Teller, E. (1937) Stability of Polyatomic Molecules in Degenerate Electronic States. I. Orbital Degeneracy. Proceedings of the Royal Society A, 161, 220-235.
[9]	Kanamori, J. (1960) Crystal Distortion in Magnetic Compounds. Journal of Applied Physics, 31, S14. http://dx.doi.org/10.1063/1.1984590
[10]	Lufaso, M.W. and Woodward, P.M. (2004) Jahn-Teller Distortions, Cation Ordering and Octahedral Tilting in Perovskites. Acta Crystallographica Section B, 60, 10-20. http://dx.doi.org/10.1107/S0108768103026661
[11]	Gateshki, M. and Igartua, J.M. (2003) Second-Order Structural Phase Transition in Sr2CuWO6 Double-Perovskite Oxide. Journal of Physics: Condensed Matter, 15, 6749. http://dx.doi.org/10.1088/0953-8984/15/40/012
[12]	Gateshki, M., Igartua, J.M. and Hernandez-Bocanegra, E. (2003) X-Ray Powder Diffraction Results for the Phase Transitions in Sr2MWO6(M = Ni, Zn, Co, Cu) Double Perovskite Oxides. Journal of Physics: Condensed Matter, 15, 6199. http://dx.doi.org/10.1088/0953-8984/15/36/309
[13]	Rodríguez-Carvajal, J. (1993) Recent Advances in Magnetic Structure Determination by Neutron Powder Diffraction. Physica B: Condensed Matter, 192, 55-69. http://dx.doi.org/10.1016/0921-4526(93)90108-I
[14]	Azdouz. M., Manoun, B., Azrour, M., Bih, L., El Ammari, L., Benmokhtar, S. and Lazor, P. (2010) Synthesis, Rietveld Refinements and Raman Spectroscopy Studies of the Solid solution Na1－xKxPb4(VO4)3 (0 < x < 1). Journal of Molecular Structure, 963, 258-266. http://dx.doi.org/10.1016/j.molstruc.2009.10.047
[15]	Bih, H., Bih, L., Manoun, B., Azdouz, M., Benmokhtar, S. and Lazor, P. (2009) Raman Spectroscopic Study of the Phase Transitions Sequence in Li3Fe2(PO4)3 and Na3Fe2(PO4)3 at High Temperature. Journal of Molecular Structure, 936, 147-155. http://dx.doi.org/10.1016/j.molstruc.2009.07.035
[16]	Blasse, G. (1965) New Compounds with Perovskite-Like Structures. Journal of Inorganic and Nuclear Chemistry, 27, 993-1003. http://dx.doi.org/10.1016/0022-1902(65)80409-2
[17]	Igartua, J.M., Aroyo, M.I., Kroumova, E. and Perez-Mato, J.M. (1999) Search for Pnma Materials with High-Temperature Structural Phase Transitions. Acta Crystallographica Section B, 55, 177-185. http://dx.doi.org/10.1107/S0108768198013342
[18]	Burns, P.C. (2002) New Cu2+ Coordination Polyhedra in the Crystal Structure of Burnsite, KCdCu7O2(SeO3)2Cl9. The Canadian Mineralogist , 40, 1587-1595.
[19]	Bergerhoff, G., Hundt, R., Sievers, R. and Brown, I.D. (1983) The Inorganic Crystal Structure Data Base. Journal of Chemical Information and Computer Sciences, 23, 66-69. http://dx.doi.org/10.1021/ci00038a003
[20]	Kupriyanov, M.F. and Fesenko, E.G. (1962) Soviet Physics. Crystallography, 7, 246.
[21]	Glazer, A.M. (1972) The Classification of Tilted Octahedra in Perovskites. Acta Crystallographica Section B, 28, 3384-3392. http://dx.doi.org/10.1107/S0567740872007976
[22]	Woodward, P.M. (1997) Octahedral Tilting in Perovskites. I. Geometrical Considerations. Acta Crystallographica Section B, 53, 32-43. http://dx.doi.org/10.1107/S0108768196010713
[23]	Reinen, D., Wellern, H.O. and Wegwerth, J. (1997) Jahn-Teller-Type Phase Transitions in Oxide Ceramics and Other Solids with Cu(II)—From the Viewpoint of a Solid State Chemist. Zeitschrift für Physik B Condensed Matter, 104, 595-600. http://dx.doi.org/10.1007/s002570050494
[24]	Glazer, A.M. (1975) Simple Ways of Determining Perovskite Structures. Acta Crystallographica Section A, 31, 756-762. http://dx.doi.org/10.1107/S0567739475001635
[25]	Dias, A., Subodh, G., Sebastian, M.T. and Moreira, R.L. (2010) Vibrational Spectroscopic Study of Sr2ZnTeO6 Double Perovskites. Journal of Raman Spectroscopy, 41, 702-706. http://dx.doi.org/10.1002/jrs.2494
[26]	Ayala, A.P., Guedes, I., Silva, E.N., Augsburger, M.S., Viola, M.C. and Pedregosa, J.C. (2007) Raman Investigation of A2CoBO6 (A=Sr and Ca, B=Te and W) Double Perovskites. Journal of Applied Physics, 101, 123511. http://dx.doi.org/10.1063/1.2745088
[27]	Manoun, B., Igartua, J.M., Gateshki, M. and Saxena, S.K. (2008) High-Pressure Study of the Sr2CoWO6 Ordered Double Perovskite Tungstate Oxide. Journal of Molecular Structure, 888, 244-252. http://dx.doi.org/10.1016/j.molstruc.2007.12.028
[28]	Manoun, B., Gateshki, M.V., Igartua, J.M. and Saxena, S.K. (2004) High-Pressure Raman Study of the Sr2CaWO6 Double Perovskite. Journal of Physics: Condensed Matter, 16, 8367-8376. http://dx.doi.org/10.1088/0953-8984/16/46/022
[29]	Kroumova, E., Aroyo, M.I., Perez-Mato, J.M., Kirov, A., Capillas, C., Ivantchev, S. and Wondratschek, H. (2003) Bilbao Crystallographic Server: Useful Databases and Tools for Phase-Transition Studies. Phase Transitions: A Multinational Journal, 76, 155-170. http://www.cryst.ehu.es http://dx.doi.org/10.1080/0141159031000076110
[30]	Cheah, M. and Kennedy, B.J. (2006) Structural Phase Transitions and Crystal Chemistry of the Series Ba2LnB’O6 (Ln = Lanthanides and B’ = Nb5+ or Sb5+). Journal of Solid State Chemistry, 179, 1775-1781.
[31]	Choy, J.-H., Park, J.-H., Hong, S.-T. and Kim, D.-K. (1994) Competition of Covalency between CrIII-O and TaV-O Bonds in the Perovskites Ca2CrTaO6 and Sr2CrTaO6. Journal of Solid State Chemistry, 111, 370-379.
[32]	Choy, J.-H., Hong, S.-T. and Choi, K.-S. (1996) Crystal Structure, Magnetism and Phase Transformation in Perovskites A2CrNbO6 (A = Ca, Sr, Ba). Journal of the Chemical Society, Faraday Transactions, 92, 1051-1059. http://dx.doi.org/10.1039/ft9969201051