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Fluctuation induced conductivity of polycrystalline MgB2 superconductor

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Abstract

We report fluctuation-induced conductivity (FIC) of the polycrystalline MgB2 superconductor in the presence of magnetic field. The results are described in terms of the temperature derivative of the resistivity, dρ/dT. The dρ/dT peak temperature observed for H = 0 Tesla at 39 K remains very distinct under applied fields of 6 Tesla and 8 Tesla at 22 and 20 K respectively. Aslamazov and Larkin (AL) equations are used to explain the anisotropic nature of the polycrystalline MgB2. The effective coherence length, ξp (0) determined experimentally is 55.17 Å, which roughly matches with previously reported experimental work.

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References

  1. Nagamatsu J, Nakagawa N, Muranaka T, Zenitani Y, Akimitsu J (2001) Nature 410:63

    Article  CAS  Google Scholar 

  2. Bouquet F, Fisher RA, Phillips NE, Hinks DG, Jorgensen JD (2001) Phys Rev Lett 87:047001

    Article  CAS  Google Scholar 

  3. Yeoh WK et al (2006) Supercond Sci Technol 19:596

    Article  CAS  Google Scholar 

  4. Chen XK, Konstantinovič MJ, Irwin JC, Lawrie DD, Franck JP (2001) Phys Rev Lett 87:157002

    Article  CAS  Google Scholar 

  5. Kumakura H, Takano Y, Fujii H, Togano K, Kito H, Ihara H (2001) Physics C 363:179

    Article  CAS  Google Scholar 

  6. Wolff Fabris F et al (2006) Supercond Sci Technol 19:405

    Article  Google Scholar 

  7. Jones ME, Marsh RE (1954) J Am Chem Soc 76:1434

    Article  CAS  Google Scholar 

  8. Kortus J, Mazin II, Belashchenko KD, Antropov VP, Boyer LL (2001) Phys Rev Lett 86:4656

    Article  CAS  Google Scholar 

  9. Bud’ko SL, Lapertot G, Petrovic C, Cunningham CE, Anderson N, Canfield PC (2001) Phys Rev Lett 86:1877

    Article  Google Scholar 

  10. Karapetrov G, Iavarone M, Kwok WK, Crabtree GW, Hinks DG (2001) Phys Rev Lett 86:4374

    Article  CAS  Google Scholar 

  11. Saito E, Taknenobu T, Ito T, Iwasa Y, Prassides K, Arima T (2001) J Phys: Condens Mat 13(12):L267

    CAS  Google Scholar 

  12. Liu AY, Mazin II, Kortus J (2001) Phys Rev Lett 87:087005

    Article  CAS  Google Scholar 

  13. Hirsch JE (2001) Phys Lett A 282:392

    Article  CAS  Google Scholar 

  14. Sidorenko AS (2002) JETP Lett 76(1):17

    Article  CAS  Google Scholar 

  15. Ghosh AK, Bandyopadhyay SK, Basu AN (1999) J Appl Phys 86:3247

    Article  CAS  Google Scholar 

  16. Li S, White T, Plevert J, Sun CQ (2004) Supercond Sci Technol 17:S589

    Article  CAS  Google Scholar 

  17. Stroud D (1975) Phys Rev B 12:3368

    Article  Google Scholar 

  18. de Lima OF (2002) Braz J Phys 32:748

    Article  Google Scholar 

  19. Canfield PC, Bud’ko SL, Finnermore (2003) Physica C 385:1

    Article  CAS  Google Scholar 

  20. Awana VPS, Rawat R, Gupta A, Isobe M, Singh KP, Vajpayee A, Kishan H, Takayama-Muromachi E, Narlikar AV (2006) Solid State Commun 139:306

    Article  CAS  Google Scholar 

  21. Barros FM, Vieira VN, Fabris FW, Cantão MP, Jurelo AR, Pureur P, Schaf (2004) Physica C 408:632

    Article  Google Scholar 

Download references

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Authors and Affiliations

  1. Department of Physics, Jamia Millia Islamia (Central University), New Delhi, 110025, India

    Intikhab A. Ansari, M. Shahabuddin & M. Husain

  2. National Physical Laboratory, Dr. K.S. Krishnan Marg, New Delhi, 110012, India

    V. P. S. Awana & H. Kishan

  3. UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore, 452017, MP, India

    Rajeev Rawat & A. V. Narlikar

Authors
  1. Intikhab A. Ansari
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  2. V. P. S. Awana
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  3. Rajeev Rawat
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  4. M. Shahabuddin
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  5. M. Husain
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  6. H. Kishan
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  7. A. V. Narlikar
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Correspondence to Intikhab A. Ansari.

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Ansari, I.A., Awana, V.P.S., Rawat, R. et al. Fluctuation induced conductivity of polycrystalline MgB2 superconductor. J Mater Sci 42, 6306–6309 (2007). https://doi.org/10.1007/s10853-006-1174-5

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  • DOI: https://doi.org/10.1007/s10853-006-1174-5

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