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We observe the interesting magnetization and resistivity results in theorthorhombically distorted self doped manganite, La_{0.87}MnO_x. A significantirreversibility between zero-field-cooled and field-cooled resistivities aswell as magnetization data is clearly observed up to a temperature which iswell above the both paramagnetic to ferromagnetic (T_c) and metal to insulatortransition (T_{MI}) temperatures. In the ferromagnetically ordered and metallicstates the magnetotransport results suggest the influence of domain walldynamics. Interesting scenario of memory effects through the domain walldynamics is strikingly observed in the relaxation of resistivity in a limitedtemperature region. The characteristic features of magnetotransport behaviourare suggested duo to the co-existence of structurally driven inhomogeneousphase separation and domain wall dynamics.Comment: 10 pages, 7 figure

Inhomogeneous phase separation and domain wall dynamics in orthorhombically distorted La0.87MnOx

Inhomogeneous phase separation and domain wall dynamics in orthorhombically distorted La_0.87MnO_x