X-ray diffraction patterns of (black symbols) at x = 0 (a), 1/6 (b), 1/3 (c), and 1/2 (d) at 300 K with the fit from Rietveld refinement (red curve). Blue plot is the residual. Green bars show the peak positions.
Plot of with along with the reported results.29 Data representing open circles are obtained from the current investigation.
Temperature variations of ZFC-FC magnetization measured at 100 Oe for x = 0 (a), 1/6 (b), 1/3 (c), and 1/2 (d) in are plotted in semi-log scale. Solid and open symbols represent the ZFC and FC data, respectively. Signature of is indicated by the arrows.
Temperature variation of at f = 3, 11, and 112 Hz for x = 1/3. Upper and lower insets show the enlarged low-temperature and high-temperature peaks, respectively, at different f.
Variations of (unfilled symbols) with obtained from the results of the end members in (Ca,Sr) (triangles),10,11 (Ca,Sr) (squares),12–14,37 and (Ca,Sr) (diamonds).15–18 The data obtained from the current investigation are given by the filled symbols.
Magnetization curves at 45 K for x = 1/6, 1/3, and 1/2 measured at a field sweep rate, 2 kOe/min (a) and at 4 K for x = 0, 1/6, 1/3, and 1/2 measured at a field sweep rate, 5 kOe/min (b) of .
The H–T phase diagram of at x = 1/6 and 1/3. The values of critical field () during increasing (solid) and decreasing (open) field cycles taken from the measurements at sweep rate of 2 kOe/min. Squares and triangles represent the data for x = 1/3 and 1/6, respectively.
Temperature variation of resistivity in zero-field at different x in .
MR-H curves at 40 K measured in sweep mode at a rate of 5 kOe/min at 40 K (a) and 50 K (b) for x = 1/6 and 1/3, respectively.
MR-H curves at 5 K measured in sweep mode at a rate of 5 kOe/min at x = 1/6 (a) and 1/3 (b) for .
Crystallographic parameters with Pnma space group and orthorhombic structure obtained from the Rietveld refinement of x-ray diffraction patterns of at 300 K. The atomic positions of Mn are at (0, 0, 0.5), Sm/Ca/Sr at (X, 0.25, Z), and O1 and O2 at (X, 0.25, Z) and (X, Y, Z), respectively.
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