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(Color online) XRD patterns of pure and doped tapes sintered at . The peaks of are indexed, while the peaks of MgO and are marked by and #, respectively. The inset shows the relative intensity of the XRD peak of MgO (220) against the peak of (110).
SEM images of the doped [(a) and (c)] and doped [(b) and (d)] samples sintered at after peeling off the Fe sheath.
(Color online) properties of Fe-sheathed pure and doped tapes. The measurements were performed in magnetic fields parallel to the tapes’ surface at .
(Color online) Temperature dependence of for the pure and doped tapes sintered at . The inset shows the normalized volume pinning force as a function of magnetic field at for the pure and doped tapes sintered at .
Properties of the samples sintered at as a function of dopants.
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