Abstract
Superconducting samples of type TlBa2Ca3−y Er y Cu4O11−δ and Cu0.25Tl0.75Ba2Ca3−y Er y Cu4O12−δ ,y ranging from 0.0 to 0.1, have been prepared by a single step of solid-state reaction technique at normal pressure using high-purity oxide elements. The lattice parameters, for prepared samples, have been estimated from X-ray powder diffraction (XRD). The elemental stoichiometry of the prepared samples has been determined using Particle Induced X-ray Emission (PIXE), whereas the oxygen-content has been determined using elastic backscattering spectroscopy at 3 MeV proton beam. The superconducting transition temperature T c has been determined from the electrical resistivity measurements. The data of T c , for TlBa2Ca3−y Er y Cu4O11−δ , show enhancement in its value from 124.5 to 128.45 K as y (Er-content) increases from 0.0 to 0.05, whereas it began to suppress with further increase in y. T c gradually suppresses with increase of yfor Cu0.25Tl0.75Ba2Ca3−y Er y Cu4O12−δ . Finally, the applied magnetic field B=0.44 T shows enlargement in the transition width. The effect of magnetic field on Tl-1234 phase is a little higher than that on (Cu0.25Tl0.75)-1234, indicating that the anisotropy parameter Γ for Tl-1234 is slightly higher than that for (Cu0.25Tl0.75)-1234.
Similar content being viewed by others
References
Ihara, H., Tanaka, K., Tanaka, Y., Iyo, A., Terada, N., Tokumoto, M., Ariyama Hase, M., Sundaresan, A., Hamada, N., Miyashita, S., Tokiwa, K., Watanabe, T.: Physica C 341–348, 487 (2000)
Khan, N.A., Khurram, A.A., Javed, A.: Physica C 422, 9 (2005)
Ihara, H., Tokiwa, K., Tanaka, K., Tsukamoto, T., Watanabe, T., Yamamoto, H., Iyo, A., Tokumoto, M., Umeda, M.: Physica C 282–287, 957 (1997)
Khan, N.A., Sekita, Y., Terada, N., Ihara, H.: Supercond. Sci. Technol. 14, 603 (2001)
Khan, N.A., Najmul, H.: Physica C 466, 106 (2007)
Khan, N.A., Hussain, A.: Physica C 449, 21 (2006)
Khan, N.A., Mumtaz, M.: Supercond. Sci. Technol. 19, 762 (2006)
Khurram, A.A., Khan, N.A.: Supercond. Sci. Technol. 19, 679 (2006)
Khan, N.A., Husnain, G.: Physica C 436, 51 (2006)
Roumié, M., Nsouli, B., Zahraman, K., Reslan, A.: Nucl. Instrum. Methods 219–220, 389 (2004)
Harrison, J.F., Eldred, R.A.: Adv. X-ray Anal. 17, 560 (1973)
Nejedly, Z., Campbell, J.L., Gama, S.: Nucl. Instrum. Methods B 219–220, 136 (2004)
Maxwell, J.A., Teesdale, W.J., Campbell, J.A.: Nucl. Instrum. Methods B 95, 407 (1995)
Mayer, M.: SIMNRA User’s Guide. Report IPP 9/113, Max-Planck-Institut für Plasmaphysik, Garching, Germany (1997)
Khurram, A.A., Mumtaz, M., Khan, N.A., Ahadian, M.M., Iraji-zad, A.: Supercond. Sci. Technol. 20, 742 (2007)
Khan, N.A., Sekita, Y., Ihra, H., Maqsood, A.: Physica C 377, 43 (2002)
Roumié, M., Awad, R., Ibrahim, I.H., Zein, A., Zahraman, K., Nsouli, B.: Nucl. Instrum. Methods B 266, 133 (2008)
Gurbich, A.F.: Nucl. Instrum. Methods B 129, 311 (1997)
Salamati, H., Kameli, P.: Solid State Commun. 125, 407 (2003)
Ong, N.P., Wang, Z.Z., Clayhold, J., Tarascon, J.M., Mckinnon, W.R.: Phys. Rev. B 35, 8807 (1987)
Yasuoka, H., Kakihana, M., Mazaki, H.: Physica C 185–189, 803 (1991)
Ihara, H.: Physica C 364–365, 289 (2001)
Velez, M., Cyritle, M.C., Kim, S., Vicent, J.L., Schuller, I.K.: Phys. Rev. B 59, 14659 (1999)
Awad, R.: Supercond. Sci. Technol. 15, 988 (2002)
Awad, R., Aly, N.S., Ibrahim, I.H., Abou-Aly, A.I., Saad, A.I.: Physica B 307, 72 (2001)
Gomaa, N.G.: Egypt. J. Solid 22, 256 (1999)
Mohammed, N.H., Abou-Aly, A.I., Motaweh, H.A., Awad, R., El-said-Bakeer, D.: Presented in the Second Arab International Conference in Physics and Material Science, held in Alexandria EGYPT, September 2007
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Mohammed, N.H., Roumié, M., Motaweh, H.A. et al. Determination of Stoichiometry and Superconducting Properties of Tl-1234 and (Cu0.25Tl0.75)-1234 Phases Substituted by Erbium. J Supercond Nov Magn 23, 465–474 (2010). https://doi.org/10.1007/s10948-009-0599-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10948-009-0599-x