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Open Access item Two- and three-dimensional magnetic ordering in the bilayer manganite Ca2.5Sr0.5GaMn2O8

Authors:Yusuf, S. M.
Teresa, José María de
Algarabel, Pedro A.
Mukadam, M. D.
Mirebeau, I.
Mignot, J.-M.
Marquina, Clara
Ibarra, M. Ricardo
Issue Date:6-Nov-2006
Publisher:American Physical Society
Citation:Physical review B 74(18): 184409 (2006)
Abstract: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.
Publisher version (URL):http://dx.doi.org/10.1103/PhysRevB.74.184409
URI:http://hdl.handle.net/10261/19453
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Appears in Collections:(ICMA) Artículos

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