Dwivedi, G. D. and Kumar, Satyam and Joshi, Amish G. and Kumar, Shiv and Ghosh, A. K. and Chou, H. and Yang, H.D. and Chatterjee, Sandip (2017) Structural, magnetic, magneto-transport properties, and electronic structure study of charge-ordered (La0.4Pr0.6)(0.65)Ca0.35MnO3. Journal of Alloys and Compounds, 699. pp. 31-37. ISSN 0925-8388

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Abstract

Structural, magnetic and magneto-transport properties of nanocrystalline (LacoPr(0.6))(0.65)Ca0.35MnO3 have been investigated along with their electronic structures. Temperature dependent magnetization measurement shows different magnetic phases in different temperature regions. (La0.4Pr0.6)(0.65)Ca0.35MnO3 completely transforms into a ferromagnet below 50 K. The temperature dependent resistivity measurement of (La(0.4)Per(0.6))(0.65)Ca0.35MnO3 system displays semiconducting behavior up to 45 K under zero magnetic field. Application of 1 T magnetic field enforces semiconductor to metal transition around 65 K during cooling and around 115 K during warming. This shows that (La0.4Pr0.6)(0.65)Ca0.35MnO3 still behaves as itinerant ferromagnet under applied magnetic field. X-ray photoemission spectra of Mn2p and Mn3s core-level confirm dual valence states of Mn (Mn3+ and Mn4+), which is responsible for the magnetic behavior of the (La0.4Pr0.6)(0.65)Ca0.35MnO3 system. High-resolution ultraviolet photoemission spectra near Fermi-edge confirms the presence of finite electronic states at Fermi-level, which explains the observed low-temperature metallic behavior of the (La0.4Pr0.6)(0.65)Ca0.35MnO3 system.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M\S Elsevier.
Subjects:	Chemistry > Physical Chemistry Materials Science Metallurgy & Metallurgical Engineering
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	25 Feb 2019 10:28
Last Modified:	25 Feb 2019 10:28
URI:	http://npl.csircentral.net/id/eprint/2866

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