Stoichiometry dependence of potential screening at La(1−δ)Al(1+δ)O3/SrTiO3 interfaces

Polar asymmetry of La(1− δ )Al(1+ δ )O3/SrTiO3 heterostructures probed by optical second harmonic generation

Magnetoresistance Versus Oxygen Deficiency in Epi-stabilized SrRu1 − xFe xO3 − δ Thin Films

Oxygen vacancies have a profound effect on the magnetic, electronic, and transport properties of transition metal oxide materials. Here, we studied the influence of oxygen vacancies on the magnetoresistance (MR) properties of SrRu1 - x Fe x O3 - δ epitaxial thin films (x = 0.10, 0.20, and 0.30). For this purpose, we synthesized highly strained epitaxial SrRu1 - x Fe x O3 - δ thin films with ato...

Effect of BaTiO3 addition on structural, multiferroic and magneto-dielectric properties of 0.3CoFe2O40.7BiFeO3 ceramics

Recent interest in SrTiO3 stems from its wide applicability in microwave devices based on the tunable characteristics of dielectric constant in the microwave frequency range. It is obvious that for any such application, SrTiO3 should have a ferroelectric Curie temperature (TC) close to room temperature or higher. By inducing strains by chemical substitutions, it was possible to obtain TC as hig...

Magnetoresistance of metallic perovskite oxide LaNiO3−δ

We report a study of the magnetoresistance (MR) of the metallic perovskite oxide LaNiO3−δ as a function of the oxygen stoichiometry δ (δ ≤ 0.14), magnetic field ( H ≤ 6T ) and temperature (1.5K ≤ T ≤ 25K). We find a strong dependence of the nature of MR on the oxygen stoichiometry. The MR at low temperatures change from positive to negative as the sample becomes more oxygen deficient ( i.e, δ i...

خواص ترابردی و شبه گاف در ابررسانای NdBa2-xLax Cu3O7-δ

 Polycrystalline samples of NdBa2-xLaxCu3O7-δ with x=0, 0.05, 0.10, 0.15, 0.20, and 0.30 were made by standard solid state methods. The transport and superconducting properties have been studied by the resistivity measurements as a function of temperature and doping concentration. In order to measurements the hole concentration in CuO2 planes, the room temperature thermoelectric power was measu...