Satendra Pal Singh

A succession of relaxor ferroelectric transitions coexisting with ferroelectric states in Ba_0.55Sr_0.45TiO_3 (2007)

Singh, Satyendra, Singh, Satendra Pal, Pandey, Dhananjai

We present here the results of frequency dependent dielectric, polarization and powder X-ray powder diffraction studies in the 300 to 100K temperature range for Ba_0.55Sr_0.45TiO_3. The dielectric...

Dielectric Relaxation and Phase Transition at Cryogenic Temperatures in 0.65[Pb(Ni_1/3Nb_2/3)O_3]-0.35PbTiO_3 Ceramics (2007)

Singh, Satendra Pal, Singh, Akhilesh Kumar, Pandey, Dhananjai, Yusuf, S. M.

Dielectric measurements on 0.65[Pb(Ni_1/3Nb_2/3)O_3]-0.35PbTiO_3 ceramic in the temperature range 90K to 470K shows a relaxor ferroelectric transition around 350K with a Vogel-Fulcher freezing...

Evidence for monoclinic crystal structure and negative thermal expansion below magnetic transition temperature in Pb(Fe_1/2Nb_1/2)O_3 (2007)

Singh, Satendra Pal, Pandey, Dhananjai, Yoon, Songhak, Baik, Sunggi, Shin, Namsoo

The existing controversy about the room temperature structure of multiferroic Pb(Fe_1/2Nb_1/2)O_3 is settled using synchrotron powder x-ray diffraction data. Results of Rietveld refinements in the...

Barrier layer formation and PTCR effect in (1-x) Pb(Fe1/2Nb1/2)O3]-xPbTiO3 (x = 0.13) ceramics (2004)

Singh, Satendra Pal, Singh, Akhilesh Kumar, Pandey, Dhananjai

(1-x)Pb(Fe1/2Nb1/2)O3-PbTiO3(PFN-xPT)Ceramics with x = 0.13 sintered at 1473K show diffuse phase transition and very high dielectric constant at lower frequencies.The high value of dielectric...