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Structure, magnetic properties and phase separation of Nd0.5Ca0.5Mn1−xGaxO3 (0⩽x⩽0.1)

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Bibliographic Details
Title:	Structure, magnetic properties and phase separation of Nd0.5Ca0.5Mn1−xGaxO3 (0⩽x⩽0.1)
Authors:	Li, Run-Wei, Sun, Ji-Rong¹, Li, Qing-An¹, Zhang, Shao-Ying¹, Shen, Bao-Gen¹
Source:	Journal of Magnetism & Magnetic Materials. Oct2003, Vol. 265 Issue 3, p248. 9p.
Subjects:	X-ray diffraction, Magnetization, Electron paramagnetic resonance, Magnetic fields
Abstract:	Structure and magnetic properties of Nd0.5Ca0.5Mn1−xGaxO3 (0⩽x⩽0.1) were investigated systematically through X-ray diffraction, magnetization and electron spin resonance (ESR) measurements. It was found that substituting Mn with Ga reduces the charge ordering temperature (TCO) and induces an additional peak in magnetization–temperature curve at low temperature. Both the temperature and magnetic field dependence of the magnetization in zero-field-cooling and field-cooling modes suggest that, in the Ga-doped samples, spin-glass-like phase induced by Ga-doping and antiferromagnetic charge-orbital-ordered (COO) phase coexist at low temperature. Furthermore, the ESR spectra indicate that, when the temperature is between the Neel temperature TN and the TCO, the paramagnetic phase and antiferromagnetic COO phase coexist and the volume fraction of the former increases with temperature at the expense of the latter. In addition, magnetization evidences for the interaction between Nd and Mn ions are present. [Copyright &y& Elsevier]
	Copyright of Journal of Magnetism & Magnetic Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database:	Engineering Source

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