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(a) Hysteresis loops normalized with respect to the saturation magnetization (MS ) for applied field (H) along  and  directions. The solid line shows the least square fit to in-plane hysteresis loop.15 The inset shows the R vs. T along with zero field cooled (open circle) and field cooled (solid circle) M vs. T measured in H = 20 mT. (b) and (c) The MFM images of LCMO film taken at two different places at 120 K in the absence of magnetic field after zero field cooling. Here the scan area is 4 × 4 μm2. (d) The domain period as a function of length measured from line A to B as shown in (c). The inset shows the FFT image of (b). (e) The θ image extracted from MFM image (c). (f) The histogram of θ image showing most probable θm values (blue regions).
(a–f) The MFM images at several temperatures near TC in zero magnetic field. All images captured have the scan area of 4 × 4 μm2 taken at the same place in continuous heating mode, while the nanometer scale offset due to the thermal drift has been controlled by x-y offset.
(a) Schematic image of the stripe domain patternwith M lying completely in yz-plane with Mz (x) ∼ sin(πx/L). The right panel shows the MFM signals as we move across the stripe length, which fits quite well with a sinusoidal function (red line). (b) The θm and L as a function of K 1/Ω with K 1/K 2 = 7.9. The projections of M on yz-plane are shown for different regions. (c) The variation of L, K 1/Ω, and θm as we move from line A to B shown in Fig. 1(c).
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