Indian Journal of Physics

, Volume 90, Issue 12, pp 1347–1354 | Cite as

Probing structural distortions in rare earth chromites using Indian synchrotron radiation source

  • R Late
  • H M Rai
  • S K Saxena
  • R Kumar
  • A Sagdeo
  • P R SagdeoEmail author
Original Paper


Effect of R site ionic radius on the structural distortions in RCrO3 (R: La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb and Y) rare earth perovskite chromites is investigated through synchrotron based X-ray diffraction technique. The said structural distortions are measured in the terms of CrO bond lengths, CrO6 octahedral tilt, tolerance factor (t) and RO12 polyhedral distortion. It is observed that the lattice parameters (b and c), RO bond length, tolerance factor and Cr–O–Cr bond angle increases with increase in the radius of R site ion; whereas octahedral tilts (along [010] and [101]) and RO12 polyhedral distortion decreases with increase in the radius of R site ion. Further it is observed that the radius of R site cation does not have significant effect on lattice parameter ‘a’ and CrO bond length (hence on the distortion of CrO6 octahedra). A comparison of the crystal structure parameters obtained using refinement of synchrotron powder X-ray data and that estimated theoretically using modern bond valence parameters (SPuDS) has been carried out. A one to one correlation between the experimental and theoretical results has been observed.


X-ray diffraction Synchrotron radiation Crystallography 


61.10.Nz 41.60.Ap 61.90.+d 



Authors sincerely thank Raja Ramanna Center for Advanced Technology (RRCAT) Indore for providing synchrotron radiation facilities. Authors are thankful to Dr. A. K. Sinha, Mr. Anuj Upadhyay and Mr. Manvendra N. Singh for their help during X-ray diffraction measurements. One of the authors (RL) acknowledges MHRD, India for providing financial support in the form of Teaching Assistantship. CSIR, New Delhi is acknowledged for funding high temperature furnace under the Project 03(1274)/13/EMR-II used for the sample preparations.


  1. [1]
    E Dagotto Nanoscale Phase Separation and Colossal Magnetoresistance (Springer, Berlin) M Cardona Vol 136 (2003)Google Scholar
  2. [2]
    C N R Rao and B Raveau Colossal Magnetoresistance, Charge Ordering and Related Properties of Manganese Oxides (World Scientific) (1998)Google Scholar
  3. [3]
    A M Glazer Acta Crystallogr. B 28, 3384 (1972)CrossRefGoogle Scholar
  4. [4]
    A M Glazer Acta Crystallogr. Sect. A31, 756 (1975)Google Scholar
  5. [5]
    K Ishida and A M Glazer Ferroelectrics 6, 293 (1973)CrossRefGoogle Scholar
  6. [6]
    B Ravel, E A Stern, R I Vedrinskii and V Kraizman Ferroelectrics 206, 407 (1998)Google Scholar
  7. [7]
    M R Filip, G E Eperon, H J Snaith and F Giustino Nat. Commun. 5, 5757 (2014)Google Scholar
  8. [8]
    M R Filip and F Giustino J. Phys. Chem. C, 120, 166 (2016)CrossRefGoogle Scholar
  9. [9]
    V Srinu Bhadram, B Rajeswaran, A Sundaresan and C Narayana EPL Europhys. Lett. 101, 17008 (2013)ADSCrossRefGoogle Scholar
  10. [10]
    P Gupta and P Poddar, RSC Adv. 5, 10094 (2015)CrossRefGoogle Scholar
  11. [11]
    A Ghosh, K Dey, M. Chakraborty, S Majumdar and S Giri EPL Europhys. Lett. 107, 47012 (2014)Google Scholar
  12. [12]
    B V Prasad, G N Rao, J W Chen and D S Babu Mater. Chem. Phys. 126, 918 (2011)Google Scholar
  13. [13]
    K Yoshii and A Nakamura J. Solid State Chem. 155, 447 (2000)ADSCrossRefGoogle Scholar
  14. [14]
    M P Cruz, D Valdespino, J J Gervacio, M Herrera, D Bueno-Baques, A Durán, J Muñoz, A C García-Castro, F J Espinoza-Beltrán, M Curiel and J M Siqueiros Mater. Lett. 114, 148 (2014)Google Scholar
  15. [15]
    J R Sahu, C R Serrao and C N R Rao Solid State Commun. 145, 52 (2008)ADSCrossRefGoogle Scholar
  16. [16]
    S Nagar, K V Rao, L M Belova, G Catalan, J Hong, J Scott, A K Tyagi, O D Jayakumar, R Shukla, Y Sheng and J Guo MRS Proc. 1161 (2009)Google Scholar
  17. [17]
    A Durán, C Meza, F E Morán, M A Alario-Franco and C Ostos Mater. Chem. Phys. 143, 1222 (2014)Google Scholar
  18. [18]
    K Yoshii J. Solid State Chem. 159, 204 (2001)ADSCrossRefGoogle Scholar
  19. [19]
    J R Sahu, C R Serrao, N Ray, U V Waghmare and C N R Rao J Mater Chem 17, 42 (2007)Google Scholar
  20. [20]
    M El Amrani, M Zaghrioui, V Ta Phuoc, F Gervais, and N E Massa J. Magn. Magn. Mater. 361, 1 (2014)ADSCrossRefGoogle Scholar
  21. [21]
    C R Serrao, A K Kundu, S B Krupanidhi, U V Waghmare and C N R Rao Phys. Rev. B 72, 220101 (2005)CrossRefGoogle Scholar
  22. [22]
    K Ramesha, A Llobet, T Proffen, C R Serrao and C N R Rao J. Phys. Condens. Matter 19, 102202 (2007)ADSCrossRefGoogle Scholar
  23. [23]
    A K Sinha et al AIP Conf. Proc. 1349, 503 (2011)Google Scholar
  24. [24]
    A K Sinha et al J. Phys. Conf. Ser. 425, 072017 (2013)ADSCrossRefGoogle Scholar
  25. [25]
    D B Wiles and R A Young J. Appl. Crystallogr. 14, 149 (1981)CrossRefGoogle Scholar
  26. [26]
    K Momma and F Izumi J. Appl. Crystallogr. 44, 1272 (2011)CrossRefGoogle Scholar
  27. [27]
    M C Weber, J Kreisel, P A Thomas, M Newton, K Sardar and R I Walton Phys. Rev. B 85, 054303 (2012)CrossRefGoogle Scholar
  28. [28]
    Y Zhao, D J Weidner, J B Parise and D E Cox Phys. Earth Planet. Int. 76, 1 (1993)ADSCrossRefGoogle Scholar
  29. [29]
    B Dabrowski, O Chmaissem, J Mais, S Kolesnik, J D Jorgensen and S Short J. Solid State Chem. 170, 154 (2003)ADSCrossRefGoogle Scholar
  30. [30]
    J B Goodenough, editor, Localized to Itinerant Electronic Transition in Perovskite Oxides (Springer, Berlin) (2001)Google Scholar
  31. [31]
    R D Shannon and C T Prewitt Acta Crystallogr. B26, 1046 (1970)CrossRefGoogle Scholar
  32. [32]
    Y Q Jia, J. Solid State Chem. 95, 184 (1991)ADSCrossRefGoogle Scholar
  33. [33]
    S Sasak, S Sasart, T CnenI-es, C P Ronenr, Ltesenmann Am. Mineral. 68, 1189 (1983)Google Scholar
  34. [34]
    M W Lufaso and P M Woodward Acta Crystallogr. B57, 725 (2001)CrossRefGoogle Scholar
  35. [35]
    I D Brown Chem. Soc. Rev. 7, 359 (1978)CrossRefGoogle Scholar
  36. [36]
    J Prado-Gonjal, R Schmidt, J-J Romero, D Ávila, U Amador and E Morán Inorg. Chem. 52, 313 (2013)CrossRefGoogle Scholar
  37. [37]
    H B Lal, R D Dwivedi and K Gaur, J. Mater. Sci. Mater. Electron. 7, 35 (1996)CrossRefGoogle Scholar
  38. [38]
    S K Joshi and R A Mashelkar, Solid State Chemistry: Selected Papers of C N R Rao (World Scientific) (1995)Google Scholar

Copyright information

© Indian Association for the Cultivation of Science 2016

Authors and Affiliations

  • R Late
    • 1
  • H M Rai
    • 2
  • S K Saxena
    • 2
  • R Kumar
    • 2
  • A Sagdeo
    • 3
  • P R Sagdeo
    • 2
    Email author
  1. 1.Department of PhysicsAhmednagar CollegeAhmednagarIndia
  2. 2.Material Research Laboratory, Discipline of Physics and Centre for Material Science and EngineeringIndian Institute of Technology IndoreSimrolIndia
  3. 3.Indus Synchrotron Utilization DivisionRaja Ramanna Center for Advanced TechnologyIndoreIndia

Personalised recommendations