Cover Page January-2014-Advanced Materials Letters

Advanced Materials Letters

Volume 5, Issue 1, Pages 09-13, January 2014
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Temperature dependent raman spectroscopy of La1−xCaxMnO3 (x = 0.0 and 0.3) 

Khalid Sultan1*, Zubida Habib2, Asima Jan1, Sajad Ahmad Mir1, M. Ikram1 and K. Asokan3  

1Department of Physics, National Institute of Technology Hazratbal Srinagar, J & K 190006, India

2Department of Chemistry, National Institute of Technology Hazratbal Srinagar, J & K 190006, India

3Materials Science Division, Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110067, India

Adv. Mater. Lett., 2014, 5 (1), pp 09-13

DOI: 10.5185/amlett.2013.6496

Publication Date (Web): Dec 28, 2013

E-mail: ksbhat.phy@gmail.com, mohd_ikram@rediffmail.com

Abstract

Temperature-dependent Raman spectroscopy of polycrystalline bulk samples of La1−xCaxMnO3 (x = 0.0, and 0.3) synthesized by solid-state reaction method is presented. As the temperature is decreased, there is significant change in intensity and full-width half maxima of all major Raman modes. This implies a structural rearrangement resulting in change of space group. This study brings out the variations in Raman spectra with temperature and also the effect of Ca doping on A-site in the compound LaMnO3. Possible effect of Laser heating on the samples has also been discussed.

Keywords

Solid state reaction, raman modes, orthorhombic.

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