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Magnetic and electron paramagnetic resonance studies of Ln0.5Ca0.5MnO3(Ln = Pr, Bi) manganite

Anuradha, KN and Bhat, SV (2021) Magnetic and electron paramagnetic resonance studies of Ln0.5Ca0.5MnO3(Ln = Pr, Bi) manganite. In: AIP Advances, 11 (1).

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Official URL: https://dx.doi.org/10.1063/9.0000172


In this paper we compare the magnetic and electron paramagnetic resonance (EPR) properties of Pr0.5Ca0.5MnO3 (PCMO) and Bi0.5Ca0.5MnO3 (BCMO) charge ordered manganites. PCMO and BCMO samples were prepared by solid state reaction method. A commercial SQUID magnetometer was used to study the dc-magnetization in the temperature range of 10-300 K. The EPR experiments were carried out using a commercial X-band (frequency �9.4 GHz) spectrometer in the temperature range 4 K - 300 K. Marked differences are found when the magnetic and EPR properties of rare earth (PCMO) and bismuth based manganites (BCMO) are compared. The temperature dependent resonance fields of PCMO and BCMO samples are seen to be opposite to each other. PCMO shows the resonance field behavior similar to other charge ordered manganites, i.e., decreases with the decrease in temperature whereas the resonance field of BCMO increases with a decrease in temperature. The opposite behavior of resonance field could be due to the different magnetic structures present in the BCMO manganite. © 2021 Author(s).

Item Type: Journal Article
Publication: AIP Advances
Publisher: American Institute of Physics Inc.
Additional Information: The copyright of this article belongs to American Institute of Physics Inc.
Keywords: Bismuth compounds; Bismuth metallography; Calcium compounds; Electron resonance; Electron spin resonance spectroscopy; Magnetometers; Manganese compounds; Manganites; Paramagnetism; Praseodymium compounds; Rare earths; Solid state reactions, Charge-ordered manganite; DC magnetization; Electron paramagnetic resonances (EPR); EPR experiments; Solid state reaction method; SQUID magnetometers; Temperature dependent; Temperature range, Paramagnetic resonance
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 25 Feb 2021 09:57
Last Modified: 25 Feb 2021 09:57
URI: http://eprints.iisc.ac.in/id/eprint/68028

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