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Título : Two- and three-dimensional magnetic ordering in the bilayer manganite Ca2.5Sr0.5GaMn2O8
Autor : Yusuf, S. M., Teresa, José María de, Algarabel, Pedro A., Mukadam, M. D., Mirebeau, I., Mignot, J.-M., Marquina, Clara, Ibarra, M. Ricardo
Fecha de publicación : 6-Nov-2006
Editor: American Physical Society
Resumen: Neutron diffraction study as a function of temperature on the bilayered manganite Ca2.5Sr0.5GaMn2O8 has revealed antiferromagnetic correlations between the [010] oriented Mn spins in the a-c plane. Three-dimensional (3D) short-range and two-dimensional (2D) long-range order over the temperature ranges 180–170K and 165–160K , respectively, have been observed. Below ˜150K , a pure 3D long-range ordering has been observed. Finally a phase diagram is proposed. A qualitative connection is made between the 2D and 3D magnetic ordering to the transport and magnetotransport properties reported for this system.
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DOI: 10.1103/PhysRevB.74.184409
Citación : Physical review B 74(18): 184409 (2006)
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