To
avoid the epitaxy dilemma in various thin films, such as complex
oxide, silicon, organic, metal/alloy, etc., their stacking at an atomic
level and secondary growth are highly desired to maximize the functionality
of a promising electronic device. The ceramic nature of complex oxides
and the demand for accurate and long-range-ordered stoichiometry face
severe challenges. Here, the transport and magnetic properties of
the La0.7Ca0.3MnO3 (LCMO) secondary
growth on single-crystal freestanding SrTiO3 (STO) membranes
are demonstrated. It has been experimentally found that on an only
10 nm thick STO membrane, the LCMO can offer a bulk-like Curie temperature
(TC) of 253 K and negative magnetoresistance
of −64%, with a weak dependence on the thickness. The resurrected
conductivity and ferromagnetism in LCMO confirm the advantages of
secondary growth, which benefits from the excellent flexibility and
transferability. Additionally, this study explores the integration
strategy of complex oxides with other functional materials.