(Color online) XRD patterns of in situ processed pure and doped tapes sintered at . The peaks of are indexed, while the peaks of MgO and are marked by * and #, respectively.
(Color online) FWHM values of various diffraction peaks as a function of the amount of .
(Color online) properties of Fe-sheathed pure and doped tapes. The measurements were performed in magnetic fields parallel to the tape surfaces at .
(Color online) The normalized volume pinning force vs magnetic field (T) at 5 and for pure and doped tapes.
(Color online) Temperature dependence of and for the pure and doped tapes.
SEM images of the pure [(a) and (c)] and doped [(b) and (d)] samples after peeling off the Fe sheath.
Properties of the samples as a function of the amount of .
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