Applied Physics A

, Volume 96, Issue 4, pp 1009–1015 | Cite as

Dielectric tunability and conduction mechanisms of nanostructured (Pb1−x Sr x )TiO3 thin films

  • Kuldeep Chand Verma
  • R. K. Kotnala
  • N. S. Negi
Article

Abstract

The effect of nanosize grains to enhance dielectric tunability in chemically prepared (Pb1−x Sr x )TiO3 (PST) (x=0.1 to 0.5) thin films has been observed. The grain size is evaluated from X-ray diffraction patterns and atomic force microscopy. The average grain size lies in the range of 80–23 nm with varying Sr content. The nanosize grains in the PST films control the dielectric behavior up to the higher frequency region and exhibit large tunability with low loss factor at room temperature. The current–voltage characteristics show a large tunability as electron transport takes place within a highly resistive Fermi gap.

PACS

73.61.-r 73.63.Bd 77.55.+f 68.37.Ps 71.35.Aa 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    X.T. Li, P.Y. Du, C.L. Mak, K.H. Wang, Appl. Phys. Lett. 90, 262906 (2007) CrossRefADSGoogle Scholar
  2. 2.
    Q. Shao, A. Li, Y. Dong, F. Fang, J. Jiang, Z. Liu, J. Phys. D, Appl. Phys. 40, 3793 (2007) CrossRefADSGoogle Scholar
  3. 3.
    S.W. Liu, S. Jolly, M. Xiao, Z. Yuan, J. Liu, C.L. Chen, W. Zhu, J. Appl. Phys. 101, 104118 (2007) CrossRefADSGoogle Scholar
  4. 4.
    S.W. Liu, J. Weaver, Z. Yuan, W. Donner, C.L. Chen, J.C. Jiang, S.W. Kirchoefer, J. Horwitz, A. Bhalla, Appl. Phys. Lett. 87, 142905 (2005) CrossRefADSGoogle Scholar
  5. 5.
    H.J. Chung, S.J. Chung, J.H. Kim, S.I. Woo, Thin Solid Films 394, 213 (2001) CrossRefADSGoogle Scholar
  6. 6.
    N.S. Negi, D.R. Sharma, A.C. Restogi, Integr. Ferroelectr. 92, 97 (2007) CrossRefGoogle Scholar
  7. 7.
    M.D. Losego, L.H. Jimison, J.F. Ihlefeld, J.P. Maria, Appl. Phys. Lett. 86, 172906 (2005) CrossRefADSGoogle Scholar
  8. 8.
    J.H. Hao, Z. Luo, J. Gao, J. Appl. Phys. 100, 114107 (2006) CrossRefADSGoogle Scholar
  9. 9.
    F.M. Pontes, S.H. Leal, M.R.M.C. Santos, E.R. Leite, E. Longo, L.E.B. Saledade, A.J. Chiquito, M.A.C. Machado, J.A. Varela, Appl. Phys. A 80, 875 (2005) CrossRefADSGoogle Scholar
  10. 10.
    A.C. Bose, P. Thangadurai, S. Ramasamy, V. Ganesan, S. Asokan, Nanotechnology 17, 1752 (2006) CrossRefADSGoogle Scholar
  11. 11.
    J.L. Wang, Y.S. Lai, S.C. Liou, C.C. Tsai, B.S. Chiou, H.C. Cheng, J. Phys. D, Appl. Phys. 41, 085304 (2008) CrossRefADSGoogle Scholar
  12. 12.
    T.P. Juan, S. Chen, J.Y. Lee, J. Appl. Phys. 95, 3120 (2004) CrossRefADSGoogle Scholar
  13. 13.
    S.T. Chang, J.Y. Lee, Appl. Phys. Lett. 80, 655 (2002) CrossRefADSGoogle Scholar
  14. 14.
    H. Yang, K. Tao, B. Chen, Y.G. Qiu, B. Xu, B.R. Zhao, Appl. Phys. Lett. 81, 4817 (2002) CrossRefADSGoogle Scholar
  15. 15.
    Y.P. Wang, T.Y. Seng, J. Appl. Phys. 81, 6762 (1997) CrossRefADSGoogle Scholar
  16. 16.
    B.D. Cullity, X-Ray Diffraction (Addison-Wesley, Reading, 1967) Google Scholar
  17. 17.
    R.L. Nigro, R.G. Toro, G. Malandrino, I.L. Fragal, M. Losurdo, M.M. Giangregorio, G. Bruno, V. Raineri, P. Fiorenza, J. Phys. Chem. B 110(35), 17460 (2006) CrossRefGoogle Scholar
  18. 18.
    N. Sivakumar, A. Narayanasamy, N. Ponpandian, G. Govindaraj, J. Appl. Phys. 101, 084116 (2007) CrossRefADSGoogle Scholar
  19. 19.
    C. Ang, Z. Yu, Phys. Rev. B 61, 3922 (2000) CrossRefADSGoogle Scholar
  20. 20.
    S.G. Lu, X.H. Zhu, C.L. Mak, K.H. Wong, H.L. Chan, C.L. Choy, Appl. Phys. Lett. 82, 2877 (2003) CrossRefADSGoogle Scholar
  21. 21.
    C.C. Homes, T. Vogt, S.M. Shapiro, S. Wakimoto, A.P. Ramirez, Science 293, 673 (2001) CrossRefADSGoogle Scholar
  22. 22.
    M. Jain, S.B. Majumder, R. Guo, A.S. Bhalla, R.S. Katiyar, Mater. Lett. 56, 692 (2002) CrossRefGoogle Scholar
  23. 23.
    Z. Huang, J. Xue, S. Liu, Y. Hou, J. Chu, D.H. Zhang, Phys. Rev. B 73, 22104 (2006) Google Scholar
  24. 24.
    M.A. Lampert, P. Mark, Current Injection in Solids (Academic, New York, 1970) Google Scholar
  25. 25.
    S.M. Sze, Physics of Semiconductor Devices (Wiley, New York, 1981) Google Scholar

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Kuldeep Chand Verma
    • 1
  • R. K. Kotnala
    • 2
  • N. S. Negi
    • 1
  1. 1.Department of PhysicsHimachal Pradesh UniversityShimlaIndia
  2. 2.National Physical LaboratoryNew DelhiIndia

Personalised recommendations