Magnetic, transport and 151Eu Mössbauer studies on partially doped La1 - x Eux Sr0.2 MnO3 ( 0.04 ≤ x ≤ 0.32) compounds

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Magnetic, transport and 151Eu Mössbauer studies on partially doped La1 - x Eux Sr0.2 MnO3 ( 0.04 ≤ x ≤ 0.32) compounds

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Title: Magnetic, transport and 151Eu Mössbauer studies on partially doped La1 - x Eux Sr0.2 MnO3 ( 0.04 ≤ x ≤ 0.32) compounds
Author: RAKESH KUMAR; RANA, DS; TOMY, CV; PAULOSE, PL; MALIK, SK
Abstract: Electrical resistivity, magnetic susceptibility and 151Eu Mössbauer studies have been carried out on La1-xEuxSr0.2MnO3 (0.04≤ x 0.32) compounds. As Eu substitution for La increases, the Curie temperature (TC) decreases from 261 K for x=0.04 to 187 K for x=0.16 along with a decrease in the metal–insulator transition temperature. However, the x=0.32 sample shows an increase in TC to 224 K along with an increase in the metal–insulator transition. The 151Eu Mössbauer studies show that all the Eu are in 3+(4f6,J=0) nonmagnetic state. Broadening of the Mössbauer spectra below TC indicates a transferred magnetic hyperfine field at the Eu site.
URI: 10.1016/j.physb.2006.01.219
http://hdl.handle.net/10054/1280
http://dspace.library.iitb.ac.in/xmlui/handle/10054/1280
Date: 2006


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