Journal Home > Volume 5 , Issue 2
Journal of Advanced Ceramics 2016, 5(2): 159-166 https://doi.org/10.1007/s40145-016-0185-1
Research Article | Open Access | Issue | Published: 14 June 2016

Dielectric properties of (Zn)x/CuTl-1223 nanoparticle–superconductor composites

Show Author's Information M. MUMTAZa( ),  Liaqat ALIa,  Shoaib AZEEMa,  Saad ULLAHa,  G. HUSSAINa,  M. W. RABBANIa,  Abdul JABBARb,  K. NADEEMa
Materials Research Laboratory, Department of Physics, FBAS, International Islamic University （IIU）, Islamabad 44000, Pakistan
Department of Physics, Ghazi University, Dera Ghazi Khan 32200, Pakistan
Keywords:
(Zn)x/CuTl-1223 nanoparticle–superconductor composites, dielectric properties, activation energy
Cite this article:
MUMTAZ M, ALI L, AZEEM S, et al. Dielectric properties of (Zn)x/CuTl-1223 nanoparticle–superconductor composites. Journal of Advanced Ceramics, 2016, 5(2): 159-166. https://doi.org/10.1007/s40145-016-0185-1
Download citation
EndNote(RIS)
BibTeX

439

Views

30

Downloads

Citations

11

Crossref

N/A

WoS

13

Scopus

0

CSCD

Abstract Full text About this article

Zinc (Zn) nanoparticles and (Cu0.5Tl0.5)Ba2Ca2Cu3O10-δ (CuTl-1223) superconducting phase were prepared separately by sol–gel and solid-state reaction methods, respectively. Zn nanoparticles were added in CuTl-1223 superconducting matrix with different weight percentage during the final sintering process to obtain (Zn)x/CuTl-1223 (x = 0–4 wt%) nanoparticle–superconductor composites. The effect of Zn nanoparticles on structural, morphological, superconducting, and dielectric properties of CuTl-1223 phase was investigated. The addition of these Zn nanoparticles has not affected the crystal structure of host CuTl-1223 superconducting phase. Superconducting properties were enhanced after the addition of Zn nanoparticles up to certain optimum content (i.e., x = 1 wt%), which were due to improved inter-grain connectivity by healing up of micro-cracks and reduction of defects like oxygen deficiencies, etc. The activation energy (U) was increased after the addition of Zn nanoparticles in CuTl-1223 phase. The dielectric properties of these samples (i.e., dielectric constant, dielectric loss) were determined by experimentally measured capacitance (C) and conductance (G) as a function of frequency at room temperature. The addition of metallic Zn nanoparticles in CuTl-1223 matrix has overall suppressed the dielectric parameters of (Zn)x/CuTl-1223 nanoparticle– superconductor composites. The metallic Zn nanoparticles played a significant role in inter-grain couplings by filling the voids and pores.


menu
Abstract
Full text
Outline
About this article

Dielectric properties of (Zn)x/CuTl-1223 nanoparticle–superconductor composites

Show Author's information M. MUMTAZa( ), Liaqat ALIa, Shoaib AZEEMa, Saad ULLAHa, G. HUSSAINa, M. W. RABBANIa, Abdul JABBARb, K. NADEEMa
Materials Research Laboratory, Department of Physics, FBAS, International Islamic University （IIU）, Islamabad 44000, Pakistan
Department of Physics, Ghazi University, Dera Ghazi Khan 32200, Pakistan

Abstract

Zinc (Zn) nanoparticles and (Cu0.5Tl0.5)Ba2Ca2Cu3O10-δ (CuTl-1223) superconducting phase were prepared separately by sol–gel and solid-state reaction methods, respectively. Zn nanoparticles were added in CuTl-1223 superconducting matrix with different weight percentage during the final sintering process to obtain (Zn)x/CuTl-1223 (x = 0–4 wt%) nanoparticle–superconductor composites. The effect of Zn nanoparticles on structural, morphological, superconducting, and dielectric properties of CuTl-1223 phase was investigated. The addition of these Zn nanoparticles has not affected the crystal structure of host CuTl-1223 superconducting phase. Superconducting properties were enhanced after the addition of Zn nanoparticles up to certain optimum content (i.e., x = 1 wt%), which were due to improved inter-grain connectivity by healing up of micro-cracks and reduction of defects like oxygen deficiencies, etc. The activation energy (U) was increased after the addition of Zn nanoparticles in CuTl-1223 phase. The dielectric properties of these samples (i.e., dielectric constant, dielectric loss) were determined by experimentally measured capacitance (C) and conductance (G) as a function of frequency at room temperature. The addition of metallic Zn nanoparticles in CuTl-1223 matrix has overall suppressed the dielectric parameters of (Zn)x/CuTl-1223 nanoparticle– superconductor composites. The metallic Zn nanoparticles played a significant role in inter-grain couplings by filling the voids and pores.

Keywords: (Zn)x/CuTl-1223 nanoparticle–superconductor composites, dielectric properties, activation energy

References(23)

[1]
Yamamoto H, Tanaka K, Tokiwa K, et al. Synthesis of Cu1-xTlxBa2Ca2Cu3O11-y (x∼0.7) superconductor by hot press. Physica C 1998, 302: 137-142.
DOI Google Scholar
[2]
Awad R. Enhancement the formation of (Cu, Tl)-1223 superconducting phase by Cd-substitution. J Alloys Compd 2009, 474: 517-521.
DOI Google Scholar
[3]
Ihara H, Tanaka K, Tanaka Y, et al. Mechanism of Tc enhancement in Cu1−xTlx-1234 and -1223 system with Tc > 130 K. Physica C 2000, 341-348: 487-488.
DOI Google Scholar
[4]
Ihara H. How to achieve the best performance superconductor based on Cu-1234. Physica C 2001, 364-365: 289-297.
DOI Google Scholar
[5]
Tanaka K, Iyo A, Terada N, et al. Tl valence change and Tc enhancement (> 130 K) in (Cu, Tl)Ba2Ca2Cu3Oy due to nitrogen annealing. Phys Rev B 2001, 63: 064508.
DOI Google Scholar
[6]
Çavdar Ş, Koralay H, Tuğluoğlu N, et al. Frequency- dependent dielectric characteristics of Tl–Ba–Ca–Cu–O bulk superconductor. Supercond Sci Technol 2005, 18: 1204.
DOI Google Scholar
[7]
Mohammed NH. Effect of MgO nano-oxide additions on the superconductivity and dielectric properties of Cu0.25 Tl0.75Ba2Ca3Cu4O12−δ superconducting phase. J Supercond Nov Magn 2012, 25: 45-53.
DOI Google Scholar
[8]
Nkum RK, Gyekye MO, Boakye F. Normal-state dielectric and transport properties of In-doped Bi–Pb–Sr–Ca–Cu–O. Solid State Commun 2002, 122: 569-573.
DOI Google Scholar
[9]
Younis A, Khan NA, Bajwa NU. Dielectric properties of Cu0.5Tl0.5Ba2Ca3Cu4−yZnyO12−δ (y = 0, 3) superconductors. J Korean Phys Soc 2010, 57: 1437-1443.
DOI Google Scholar
[10]
Mumtaz M, Khan NA, Khurram AA. Enhanced superconducting properties of Cu0.5(Tl0.5−yHgy)Ba2Ca3 Cu4O12−δ (y = 0, 0.15, 0.25, 0.35) superconductor. J Alloys Compd 2008, 452: 435-440.
DOI Google Scholar
[11]
Khan NA, Husnain G, Sabeeh K. Enhanced superconductivity in Cu0.5Tl0.5Ba2Can−1−yBeyCunO2n+4−δ (n = 3, 4 and y = 0.7, 1.5, 1.7, 2.0) system with oxygen doping. J Phys Chem Solids 2006, 67: 1841-1849.
DOI Google Scholar
[12]
Ihara H, Tokiwa K, Tanaka K, et al. Cu1−xTlxBa2Ca3Cu4 O12−y (Cu1−xTlx-1234) superconductor with Tc = 126 K. Physica C 1997, 282-287: 957-958.
DOI Google Scholar
[13]
Ben-Ishai P, Sader E, Feldman Y, et al. Dielectric properties of Na0.7CoO2 and of the superconducting Na0.3Co O2·1.3H2O. J Supercond 2005, 18: 455-459.
DOI Google Scholar
[14]
Kamalasanan MN, Kumar ND, Chandra S. Dielectric and ferroelectric properties of BaTiO3 thin films grown by the sol–gel process. J Appl Phys 1993, 74: 5679.
DOI Google Scholar
[15]
Xu X, Jiao Z, Fu M, et al. Dielectric studies in a layered Ba based Bi-2222 cuprate Bi2Ba2Nd1.6Ce0.4Cu2O10+δ. Physica C 2005, 417: 166-170.
DOI Google Scholar
[16]
Çavdar Ş, Koralay H, Altındal Ş. Effect of vanadium substitution on the dielectric properties of glass ceramic Bi-2212 superconductor. J Low Temp Phys 2011, 164: 102-114.
DOI Google Scholar
[17]
Annabi M, Bouchoucha I, Azzouz FB, et al. Effect of ZnO and Zn0.95Mn0.05O nano-particle inclusions on YBCO polycrystalline pinning properties. IOP Conf Ser: Mater Sci Eng 2010, 13: 012009.
DOI Google Scholar
[18]
Mumtaz M, Khan NA. Dielectric properties of Cu0.5Tl0.5Ba2Ca3Cu4O12−δ bulk superconductor. Physica C 2009, 469: 728-731.
DOI Google Scholar
[19]
Mumtaz M, Rahim M, Khan NA, et al. Dielectric properties of oxygen post-annealed Cu0.5Tl0.5Ba2Ca3(Cu4−y Cdy)O12−δ bulk superconductor. Ceram Int 2013, 39: 9591-9598.
DOI Google Scholar
[20]
Abdeen W, Mohammed NH, Awad R, et al. Influence of nano-Ag addition on phase formation and electrical properties of (Cu0.5Tl0.5)-1223 superconducting phase. J Supercond Nov Magn 2013, 26: 623-631.
DOI Google Scholar
[21]
Jabbar A, Mumtaz M, Nadeem K. Noble metals (Ag, Au) nanoparticles addition effects on superconducting properties of CuTl-1223 phase. Eur Phys J Appl Phys 2015, 69: 30601.
DOI Google Scholar
[22]
Wagner KW. Zur Theorie der unvollkommenen Dielektrika. Annalen der Physik 1913, 345: 817-855.
DOI Google Scholar
[23]
Tselev A, Brooks CM, Anlage SM, et al. Evidence for power-law frequency dependence of intrinsic dielectric response in the CaCu3Ti4O12. Phys Rev B 2004, 70: 144101.
DOI Google Scholar
Publication history
Copyright
Acknowledgements
Rights and permissions

Publication history

Received: 25 January 2016
Revised: 11 March 2016
Accepted: 16 March 2016
Published: 14 June 2016
Issue date: June 2021

Copyright

© The author(s) 2016

Acknowledgements

Higher Education Commission (HEC) of Pakistan is acknowledged for financial support through Project No. 20-1482/R&D/09-1472. Authors are also highly thankful to Prof. Xiang-Gang Qiu, Beijing National Laboratory of Condensed Matter Physics, Institute of Physics (IOP), Chinese Academy of Sciences (CAS), Beijing, China, for providing the characterization facilities.

Rights and permissions

Open Access The articles published in this journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/ by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Return