Skip to main content
SpringerLink
Log in

Low-field Magnetoresistance, Specific Heat and Magnetocaloric Effect in Sr Substituted Pr0.7Ca0.3MnO3

  • Original Paper
  • Published:
Journal of Superconductivity and Novel Magnetism Aims and scope Submit manuscript

Abstract

We investigate the effect of ionic size variation on the electrical and thermodynamic properties in a series of Pr0.7Ca0.3−x Sr x MnO3 (PCSMO) samples. The increase in Sr content results in an increase of the unit cell volume, as a bigger Sr2+ ion replaces the smaller Ca2+ ions. Resistivity measurements show that the increase in the Sr content also results in the induction of a metal–insulator transition (T MI), which increases with increasing Sr content. The activation energy (E a), calculated from the resistivity data, decreases with increasing Sr content confirming the metallic character. The effect of the magnetic field on resistivity and specific heat has also been studied.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Zener, C.: Phys. Rev. 82, 403 (1951)

    Article  ADS  Google Scholar 

  2. Tokura, Y.: Colossal Magnetoresistive Oxides. Gordon & Breach, Amsterdam (2000)

    Google Scholar 

  3. Coey, J.M.D., Viret, M., von Molnár, S.: Adv. Phys. 48, 167 (1999)

    Article  ADS  Google Scholar 

  4. Rao, C.N.R., Cheetham, A.K., Mahesh, R.: Chem. Mater. 8, 2421 (1996)

    Article  Google Scholar 

  5. Mathur, N.D., Burnell, G., Isaac, S.P., Jackson, T.J., Teo, B.-S., Macmanu-Driscoll, J.L., Cohen, L.F., Evetts, J.E., Blamire, M.G.: Nature 387, 266 (1997)

    Article  ADS  Google Scholar 

  6. Siwach, P.K., Singh, H.K., Srivastava, O.N.: J. Phys., Condens. Matter 20, 273201 (2008)

    Article  ADS  Google Scholar 

  7. Dogra, A., Rayaprol, S., Babu, P.D., Ravi Kumar, G., Gupta, S.K.: J. Alloys Compd. 493, L19 (2010)

    Article  Google Scholar 

  8. Arulraj, A., Santhosh, P.N., Srinivasa Gopalan, R., Guha, A., Raychaudhuri, A.K., Kumar, N., Rao, C.N.R.: J. Phys., Condens. Matter 10, 8497 (1998)

    Article  ADS  Google Scholar 

  9. Phan, M.-H., Yu, S.-C.: J. Magn. Magn. Mater. 308, 325 (2007)

    Article  ADS  Google Scholar 

  10. Tishin, A.M.: J. Magn. Magn. Mater. 316, 351 (2007)

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Technical Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India

    Anjana Dogra & Shovit Bhattacharya

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

    Anjana Dogra

  3. UGC DAE Consortium for Scientific Research, R-5 Shed, BARC Campus, Trombay, Mumbai, 400085, India

    Sudhindra Rayaprol

  4. Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstrasse 30, 48149, Münster, Germany

    Matthias Eul, Wilfried Hermes & Rainer Pöttgen

Authors
  1. Anjana Dogra
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Sudhindra Rayaprol
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Shovit Bhattacharya
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Matthias Eul
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Wilfried Hermes
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Rainer Pöttgen
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Sudhindra Rayaprol.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Dogra, A., Rayaprol, S., Bhattacharya, S. et al. Low-field Magnetoresistance, Specific Heat and Magnetocaloric Effect in Sr Substituted Pr0.7Ca0.3MnO3 . J Supercond Nov Magn 24, 1425–1431 (2011). https://doi.org/10.1007/s10948-010-0846-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10948-010-0846-1

Keywords

Search

Navigation