10 research outputs found
Intrinsic inhomogeneities and effects of resistive switching in doped manganites
Full text linkThe effect of resistive switching in doped manganites being in the
ferromagnetic state has been studied using resistive and magneto-optic methods.
The visualization of magnetic structure of La0.75Sr0.25MnO3-x single crystals,
and its transformation under electric current proposed local superheating of
the material above the Curie temperature, which was supported by numerical
calculation. The obtained results suggest a significant role of
micrometer-scale inhomogeneity of manganites in phase separation, magnetic and
transport properties of the material
Resistive switchings in perovskite compounds with memory effect: Study of metastable states of heterocontacts formed by a normal metal and doped manganite single crystal
No full textNd 2 − x Ce x CuO 4 − y/ Nd 2 − x Ce x O y boundary and resistive switchings in mesoscopic structures on base of epitaxial Nd 1.86 Ce 0.14 CuO 4 − у films
No full textResistive switching effect in thin-film heterojunctions based on electron-doped Nd2 − x Ce x CuO4 − y superconductor
No full text
Electric field-induced rearrangement of charged species in metal oxide devices with resistive change: thermodynamic limitations
No full textHypotheses used to interpret results of electrical measurements on metal oxides which are employed for gas sensors and resistive switching memristors are often based on consideration of drift migration of species (such as oxygen vacancies, chemisorbed ions) under electric field. We offer simple conceptual arguments restricting this approach from the view points of potential minimum principle, ambipolar diffusion and non-equilibrium thermodynamics (Glansdorff-Prigogine criterion)
