Molybdenum selenide (MoSe2) has recently attracted particular attention for its room-temperature ferromagnetism (RTFM) and related spintronic applications. However, not only the FM mechanism of MoSe2 remains controversial, but also the...

Mask R-CNN model is an excellent image segmentation model, but cannot perform well on the task of mold ID recognition. To address the aboved problem, this paper improves the classification branch of Mask R-CNN model by applying DARTs, making the improved classification branch more suitable for mold ID recognition task. Firstly, DARTs is employed to obtain network cell structure. Secondly, the network cell structure is used to improve the classification branch. Moreover, we make the model converge under 2GPU days based on transfer learning. Finally, the experimental results show that the improved model can achieve higher accuracy with IOU of 0.5 (increased by 1.02%) and 0.75 (increased by 2.42%).

Fe-doped SiGe (Si0.25Ge0.75:Fex, x = 0.01, 0.025, and 0.05) thin films are prepared by radio frequency magnetron sputtering and subsequent rapid thermal annealing on Ge (100) substrate and their structural,...

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Theoretically, tetragonal lattice distortion of FeCo epitaxial films can result in a very large in‐plane magnetic anisotropy field, leading to an extremely high ferromagnetic resonance (FMR) frequency. In this study, Fe75Co25 thin films were epitaxially grown on (001) MgAl2O4 single crystal substrates. A triclinic lattice distortion with a≠b≠c, instead of a tetragonal one, was found in the FeCo films. The cubic symmetry breaking leads to a deviation of easy axes from the 〈100〉 directions, forming a distribution of magnetic moments with a strong perpendicular magnetic anisotropy (PMA) along the out‐of‐plane [001] directions and a deviation of the in‐plane components from the ( [100] and [010]) directions. The effective field of the former is as high as 1.5‐2.5 T, enough to overcome the thin film shape anisotropy, while that of the latter stays at a low value around 0.05 T. The strain induced PMA gradually relaxes to in‐plane for thicker films with a strained sublayer remains. As a result, an extremely high out‐of‐plane FMR frequency over 40 GHz was achieved, accompanied with a lower in‐plane FMR frequency around 8 GHz. This study provides a possible approach to prepare self‐biased soft magnetic films with extremely high resonance frequency for applications in microwave integrated circuits.This article is protected by copyright. All rights reserved.