Magnetic and transport properties of the charge-ordered manganite Pr2/3Ca1/3MnO3. Physics of the Solid State, 53(5):964-969, 2011. cited By 0
Paper doi abstract bibtex The transport properties, ac susceptibility χ, and EPR spectra have been studied for the insulator polycrystalline manganite Pr2/3Ca1/3MnO3 undergoing the orbital (O) and charge (C) orderings below TCO 250 K that lead to antiferromagnetic (AF) ordering below TN ≈ 155 K. Above TC 110 K, the χ′(T) dependence indicates that the sample contains a phase undergoing a second-order transition from the paramagnetic to ferromagnetic state. In the vicinity of TC, the colossal magnetoresistance effect is observed. The EPR spectrum characteristics are sensitive to the development of the O/C and AF orderings, and they show peculiarities at TCO and TN. Between TCO and TN, the temperature dependence of the g factor exhibits a characteristic point that can be related to the appearance of the electric polarization revealed in manganites of this class. © 2011 Pleiades Publishing, Ltd.
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