%0 Journal Article
%T Structural and Elastic Behavior of Chromium Doped Pr<sub>0.5</sub>Sr<sub>0.5</sub>MnO<sub>3</sub> System
%A Ashok Kumar Kusuma
%A Elle Sagar
%A G. Sreeram Reddy
%A K. Vijaya Kumar
%J Advances in Nanoparticles
%P 26-35
%@ 2169-0529
%D 2021
%I Scientific Research Publishing
%R 10.4236/anp.2021.101002
%X <span style=\"font-family:Verdana;\">A series of colossal magneto resistance (CMR) materials with
compositional formula Pr</span><sub><span style=\"font-family:Verdana;\">0.5</span></sub><span style=\"font-family:Verdana;\">Sr</span><sub><span style=\"font-family:Verdana;\">0.5</span></sub><span style=\"font-family:Verdana;\">Mn</span><sub><span style=\"font-family:Verdana;\">1-x</span></sub><span style=\"font-family:Verdana;\">Cr</span><sub><span style=\"font-family:Verdana;\">x</span></sub><span style=\"font-family:Verdana;\">O</span><sub><span style=\"font-family:Verdana;\">3</span></sub><span style=\"font-family:Verdana;\"> (x = 0, 0.1, 0.2, 0.3, 0.4) were prepared by sol-gel technique using pure metal
nitrates as the starting materials. These samples were characterized
structurally by X-ray diffraction, FTIR and SEM. All the </span><span style=\"font-family:Verdana;\">samples exhibit orthorhombic structure without any
detectable impurities.</span><span style=\"font-family:Verdana;\"> The bulk den</span><span></span><span><span style=\"font-family:;\" \"=\"\"><span style=\"font-family:Verdana;\">sities for all the compositions were
measured from the pellets. The Young¡¯s and Rigidity moduli, Poisson¡¯s ratio and
Debye temperature of all the compositions were calculated with the
experimentally measured ultra</span><span style=\"font-family:Verdana;\">sonic longitudinal
and shear velocities at room temperature using pulse</span><span style=\"font-family:Verdana;\"> transmission
technique. As the materials are porous, zero porous elastic moduli have also
been calculated using a well-known Hasselmann and Fulrath model. </span><span style=\"font-family:Verdana;\">The observed variation of elastic moduli with
varying chromium doping</span><span style=\"font-family:Verdana;\"> concentration has been studied qualitatively.</span></span></span>
%K CMR Materials
%K Resistivity
%K Ultrasonic Velocity
%K Elastic Moduli
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=107027