Magnetization curves at 10 K of films with the magnetic field applied (a) in-plane and perpendicular out-of-plane , and (b) in-plane along two different angles with respect to the  direction .
(a) Magnetization curves at 10 K of films of various thicknesses. The magnetic field is applied along . The dashed lines indicate the values of CFO bulk magnetization. (b) Relative intensity of the magnetization drop with respect to the total magnetization as a function of film thickness (the lines are guides to the eyes).
(a) Thickness dependence of the in-plane (squares) and out-of-plane (circles) cell parameters of CFO films (the dashed lines are guides to the eyes); (b) and (c) are the reciprocal space maps around the (115) reflection of CFO films of thicknesses 6.5 and 41.7 nm, respectively. The dashed lines indicate the position of bulk (115) CFO reflections.
FE-SEM images of CFO films of various thickness. Insets are the corresponding AFM images.
(a) AFM scan lines across the surface of CFO films of various thicknesses; (b) sketch of the observed morphology.
(a) Dependence on thickness of the relative volume fraction of the pyramidal huts. The circles and squares are the values of determined from the microscopy images and from the magnetization loops, respectively. (b) Saturation magnetization of the film (phase A) vs the thickness as extracted from the fits using the experimental fraction as input parameter (dashed lines are simply guides to the eyes).
Magnetization loops of the CFO films. The solid lines across the experimental values in the second and third quadrants represent the fits of the data obtained by the two phase model.
The dependence of the on thickness (circles, top axis) and on reciprocal thickness (squares, bottom). The dashed lines are intended as a guide for the eyes.
Article metrics loading...
Full text loading...