Electrochemical rewiring through quantum conductance effects in single metallic memristive nanowires

Memristive devices have been demonstrated to exhibit quantum conductance effects at room temperature. In these devices, a detailed understanding of the relationship between electrochemical processes and ionic dynamic underlying the formation of atomic-sized conductive filaments and corresponding electronic transport properties in the quantum regime still represents a challenge. In this work, we report on quantum conductance effects in single memristive Ag nanowires (NWs) through a combined ex...

Ab initio study of magneto-ionic mechanisms in ferromagnet/oxide multilayers

The application of gate voltages in heavy metal/ferromagnet/oxide multilayer stacks has been identified as one possible candidate to manipulate their anisotropy at will. However, this method has proven to show a wide variety of behaviors in terms of reversibility, depending on the nature of the metal/oxide interface and its degree of oxidation. In order to shed light on the microscopic mechanism governing the complex magneto-ionic behavior in Ta/CoFeB/HfO2, we perform ab initio simulations on...

Canker and dieback on platanus x acerifolia caused by diaporthe scabra

Temperature and Frequency Dependence of Magnetic Losses in Fe-Co

We investigate the temperature dependence of the energy loss W(f) of 0.10 and 0.20 mm thick Fe-Co-V sheets (Vacoflux (R) and Vacodur (R)) in the range-50(degrees)C <= T <= 155(degrees)C. The measurements, performed from DC to f = 5 kHz on ring samples and Epstein strips, show that W(f) passes through a minimum value around room temperature at all tested polarization values (1.0 <= J(p) <= 1.9 T). The largest effect occurs under quasi-static regime and declines with frequency, depe...