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Information Journal Paper

Title

EFFECT OF LIGHT RARE EARTH DOPING IN 123 HIGH TEMPERATURE SUPERCODUCTORS

Pages

  203-203

Abstract

 We have studied the structural and electrical properties of Gd(Ba2-xLax) Cu3 O7+d [Gd(BaLa)123], Gd(Ba2-xNdx) Cu3O7+d [Gd(BaNd)123], and Nd(Ba2-xPrx) Cu3O7+d [Nd(BaPr)123] compounds with 0.0£x£0.8 prepared by the standard solidstate reaction. The XRD patterns show that all of the samples with x£0.5 are isosructure 123 phase, but in Gd(BaNd)123 and Nd (BaPr)123 there are several impurity peaks in the XRD patterns for x³0.6. We estimated the xc solubility=1.1, 0.6 and 0.55 in Gd (BaLa)123, Nd (BaPr)123, and Gd (BaNd)123, respectively. The resistivity increases with the increase of doping. The decrease of Tc with the increase of Pr doping is faster than Nd and La doping. The normal-state resistivity is fitted for two and three dimensional variable range hopping (2D&3D-VRH) and Coulomb gap (CG) regimes, separately. Our results indicate that the dominant mechanism for x³xcSIT is 3D-VRH. The broadening of magnetoresistance have been investigated by TAFC and AH models. The pinning energy and Josephson coupling energy, decrease with the increase of applied magnetic field as U~H-b these values also decrease with doping concentration; Pr is more effective than Nd and La.

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    APA: Copy

    MIRZADEH, M., MALEKI, P., & AKHAVAN, M.. (2006). EFFECT OF LIGHT RARE EARTH DOPING IN 123 HIGH TEMPERATURE SUPERCODUCTORS. IRANIAN JOURNAL OF PHYSICS RESEARCH, 6(3), 203-203. SID. https://sid.ir/paper/385641/en

    Vancouver: Copy

    MIRZADEH M., MALEKI P., AKHAVAN M.. EFFECT OF LIGHT RARE EARTH DOPING IN 123 HIGH TEMPERATURE SUPERCODUCTORS. IRANIAN JOURNAL OF PHYSICS RESEARCH[Internet]. 2006;6(3):203-203. Available from: https://sid.ir/paper/385641/en

    IEEE: Copy

    M. MIRZADEH, P. MALEKI, and M. AKHAVAN, “EFFECT OF LIGHT RARE EARTH DOPING IN 123 HIGH TEMPERATURE SUPERCODUCTORS,” IRANIAN JOURNAL OF PHYSICS RESEARCH, vol. 6, no. 3, pp. 203–203, 2006, [Online]. Available: https://sid.ir/paper/385641/en

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