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Título : Magnetoresistance in the paramagnetic insulating state of Pr0.50Ca0.50CoO3
Autor : Barón-González, A. J., Frontera Beccaria, Carlos, García-Muñoz, J. L., Blasco, Javier
Fecha de publicación : 2010
Editor: Institute of Physics Publishing
Resumen: We have studied the magnetic and magnetotransport properties of Pr0.50Ca0.50CoO3 (prepared using high pressure routes). We find that below the metal-insulator and spin state transition (MIT), the system can be described as a paramagnetic insulator. In this regime, it presents a considerable negative magnetoresistance (20%-40%), while above MIT the magnetoresistance is negligible or even slightly positive. These results seem in contradiction with the spin state picture usually drawn for this system.
Identificadores: doi: 10.1088/1742-6596/200/1/012010
issn: 1742-6588
e-issn: 1742-6596
Citación : Journal of Physics: Conference Series 200(1): 012010 (2010)
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