José Luis García-Muñoz

Magnetic structure evolution of NdMnO3 derived from neutron diffraction data

The orthorhombic NdMnO3 perovskite (space group Pnma ) has been studied on the basis of magnetization and neutron powder diffraction (NPD) data. Magnetization measurements suggest the coexistence of ferromagnetic and antiferromagnetic interactions: magnetization versus magnetic field curves present a remnant magnetization in the ordered region, which is around 1 µB at T = 6 K. The thermal evolution of the magnetic structure has been followed down to 1.5 K from the NPD data. These measurements show that the Mn sub-lattice becomes ordered below T N 78 K with a spin arrangement (C x ,F y ,0), in such a way that a ferromagnetic component appears along the y -direction. The Nd sub-lattice becomes ordered below T 13 K according to a ferromagnetic arrangement with the moments parallel to the y -direction. At T = 1.5 K the magnetic moment values are 3.22(9) µB for Mn atoms and 1.2(2) µB for Nd atoms.

Effect of band filling and structural distortions on the Curie temperature of Fe-Mo double perovskites

By means of high resolution neutron powder diffraction at low temperature we have characterized the structural details of

Enhanced stability of charge-order in underdoped Bi0.75Sr0.25MnO3

{\mathrm{La}}_{x}{\mathrm{Sr}}_{2\ensuremath{-}x}{\mathrm{FeMoO}}_{6}

A structural and magnetic study of the defect perovskite from high-resolution neutron diffraction data

(0l~\mathrm{x}l~0.5)

Layered and pillared metal carboxyethylphosphonate hybrid compounds

and

Dielectric properties of Bi1-xSrxMnO3 (x=0.40,0.50) manganites: Influence of room temperature charge order

{\mathrm{Ca}}_{x}{\mathrm{Sr}}_{2\ensuremath{-}x}{\mathrm{FeMoO}}_{6}

Crystal structure and magnetism in the defect perovskite LaNiO2.5

(0l~xl~0.6)

Influence of R-ion size on spin state of Co and magnetic properties of RBaCo2O5.50 cobaltites

series of compounds. This study reveals a similar variation of the mean bond-angle