Janus MXene nanosheets with a strain-induced reversible magnetic state transition for storing information without electricity.

The application of strain induces a transition in the ground-state magnetic configuration of Janus TiVC MXene from A-AFM to FM. A new system and method of solid-state disk information storage without electricity is developed based on the as-discovered reversible magnetic state transition in TiVC, which can achieve efficient storage of information in extremely harsh conditions.

Enhanced Performance of LaSrFeO-GdCeO Cathode for Solid Oxide Fuel Cells by Surface Modification with BaCO Nanoparticles.

Recently, Fe-based perovskite oxides, such as LnSrFeO (Ln = La, Pr, Nd, Sm, Eu) have been proposed as potential alternative electrode materials for solid oxide fuel cells (SOFCs), due to their good phase stability, electrocatalytic activity, and low cost. This work presents the catalytic effect of BaCO nanoparticles modified on a cobalt-free LaSrFeO-GdCeO (LSF-GDC) composite cathode at an intermediate-temperature (IT)-SOFC. An electrochemical conductivity relaxation investigation (ECR) shows that the K value of the modified LSF-GDC improves up to a factor of 17.

CrI/YCH Heterointerface-Induced Stable Half-Metallicity of Two-Dimensional CrI Monolayer Ferromagnets.

Two-dimensional (2D) CrI monolayer ferromagnets are key to the development of future miniature spintronic devices and modulating them into a half-metal will greatly expand the application scenarios of CrI in nanospintronics. Nevertheless, existing strategies to induce half-metallicity of a CrI monolayer remain experimentally challenging and have unstable issues. In this work, the introduction of a 2D electride [YC]·2e as an auxiliary layer is shown to be an effective way to achieve the generation of stable half-metallicity in the CrI monolayer.