Andrés Prada, R. de Golod, T. Kapran, O. M. Borodianskyi, E. A. Bernhard, Christian Krasnov, V. M. 2019-06-21 Complex oxides exhibit a variety of unusual physical properties, which can be used for designing novel electronic devices. Here we fabricate and study experimentally nanoscale superconductor/ferromagnet/superconductor junctions with the high-Tc cuprate superconductors YBa2Cu3O7−x and the colossal magnetoresistive (CMR) manganite ferromagnets La2/3X1/3MnO3+δ (X=Ca or Sr). We demonstrate that in a broad temperature range the magnetization of a manganite nanoparticle, forming the junction interface, switches abruptly in a monodomain manner. The CMR phenomenon translates the magnetization loop into a hysteretic magnetoresistance loop. The latter facilitates a memory functionality of such a junction with just a single CMR ferromagnetic layer. The orientation of the magnetization (stored information) can be read out by simply measuring the junction resistance in a finite magnetic field. The CMR facilitates a large readout signal in a small applied field. We argue that such a simple single-layer CMR junction can operate as a memory cell both in the superconducting state at cryogenic temperatures and in the normal state up to room temperature. application/pdf https://folia.unifr.ch/global/documents/308049 https://folia.unifr.ch/documents/308049/files/ber_mfs.pdf eng info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.99.214510 info:eu-repo/semantics/openAccess License undefined Physical Review B. - 2019, vol. 99, no. 21, p. 214510 info:eu-repo/classification/udc/53 Memory-functionality superconductor/ferromagnet/superconductor junctions based on the high- T c cuprate superconductors YBa 2 Cu 3 O 7 − x and the colossal magnetoresistive manganite ferromagnets La 2 / 3 X 1 / 3 MnO 3 + δ ( X = Ca , Sr ) http://purl.org/coar/resource_type/c_6501