Structural, magnetic, magneto-transport properties, and electronic structure study of charge-ordered (La0.4Pr0.6)(0.65)Ca0.35MnO3
IR@NPL: CSIR-National Physical Laboratory, New Delhi
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| Title |
Structural, magnetic, magneto-transport properties, and electronic structure study of charge-ordered (La0.4Pr0.6)(0.65)Ca0.35MnO3
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| Creator |
Dwivedi, G. D.
Kumar, Satyam Joshi, Amish G. Kumar, Shiv Ghosh, A. K. Chou, H. Yang, H.D. Chatterjee, Sandip |
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| Subject |
Physical Chemistry
Materials Science Metallurgy & Metallurgical Engineering |
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| Description |
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.
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| Publisher |
Elsevier
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| Date |
2017-03
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/2866/1/Structural%2C%20magnetic%2C%20magneto-transport%20propertie.pdf
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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| Relation |
http://npl.csircentral.net/2866/
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