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Misfit strain delivered from single-crystal substrates typically modifies theground states of transition metal oxides, generating increasing interests indesigning modern transducers and sensors. Here, we demonstrate thatmagnetotransport properties of La$_{0.67}$Sr$_{0.33}$MnO$_3$ (LSMO) films werecontinuously tuned by uniaxial strain produced by a home-designed bending jig.The electrical conductivity and Curie temperature of LSMO films are enhanced bybending stresses. The resistivity of a u-shape bended LSMO decays three timesfaster than that of a n-shape bended LSMO as a response to the same magnitudeof strain. The asymmetric magnetic states in uniaxially strained LSMO areattributed to the dual actions of Jahn-Teller distortion and strain gradientmediated flexoelectric fields in an adjacent ferroelectric layer. Thesefindings of multi-field regulation in a single material provide a feasiblemeans for developing flexible electronic and spintronic devices.

Asymmetric Ground States in La$_{0.67}$Sr$_{0.33}$MnO$_3$/BaTiO$_3$ heterostructures Induced by Flexoelectric Bending