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Spin mixing conductance (SMC) at the ferromagnetic/non-magnetic material (FM/NM) interface governs the transport efficiency of the spin current. A high level of SMC is crucial for efficient spin injection and spin manipulation. Here, we report a reliable way to enhance the SMC at the FM/NM interface by rare-earth doping in the NM layer. As evidenced by the decreased saturation magnetization in permalloy (Py)/Cu–Nd structures, an induced magnetism in Nd is proposed, which is likely to be antiferromagnetically coupled to Py at the interface. By changing the doping content of Nd, the Py/Cu–Nd interface can be well designed, which gives rise to an effective tuning of the SMC from 0.37 × 1015 to 16.26 × 1015 cm−2. Such a tuning effect of SMC is suppressed by inserting a Cu spacer, demonstrating the key role of the antiferromagnetically coupled interface to the improved SMC. Our results highlight the significance of rare-earth materials in spin transport, expanding the design capability of energy-efficient spintronic devices.

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The development of sports towns in Guangdong-Hong Kong-Macao Bay area should keep pace with the strategy of rural revitalization, and contribute to the revitalization of rural industry, Talents, culture and ecology. It is concluded that the sports towns have five missions of rural economic, social, political, cultural and ecological civilization development. The Guangdong-Hong Kong-Macao Bay area has a Superior Sports Industry Foundation, a good sports competition atmosphere, and a diversified sports culture, the revitalization of rural industry can be promoted by building sports brand events in Guangdong-Hong Kong-Macao Bay area, developing sports characteristic industry chain with sustainable development, one main and many auxiliary sports items, and establishing sports industry cooperation and exchange mechanism with the participation of government, enterprises and people in the bay area We should attach importance to the development of human resources, the training of local talents, the work of sending talents to the countryside, the gathering of talents from small towns, the promotion of the integration and development of traditional culture and sports culture, the promotion of the spread of sports culture and the revitalization of rural culture Improve the utilization rate of natural resources, improve the level of ecological construction, promote the town ecological system construction, ecological facilities construction and ecological protection behavior guide to help the rural ecological revitalization.

Full-waveform inversion (FWI), as an optimization-based approach to estimating subsurface models, is limited by incomplete acquisition and illumination of the subsurface. The incorporation of additional data from new and independent ray paths should be expected to result in significant increase in the accuracy of FWI models. In principle, seismic-while-drilling (SWD) technology can supply these additional ray paths; however, it introduces a new suite of unknowns, namely precise source locations (i.e., drilling path), source signature, and radiation characteristics. Here we formulate a new FWI algorithm in which source radiation patterns and positions join the velocity and density values of the grid cells as unknowns to be determined. We then conduct several numerical inversion experiments with different source settings, using a synthetic model. The SWD sources are supplemented by explosive sources and multi-component receivers at the surface, simulating a conventional surface acquisition geometry. The subsurface model and SWD source properties are recovered and analyzed. The analysis is suggestive that SWD involvement can enhance the accuracy of FWI models, with varying degrees of enhancement depending on factors such as trajectory inclination, source density, and drill path extension. The impact of SWD-FWI over standard FWI is reduced when low-frequency data are missing, but improvements over the models constructed with no subsurface sources remain. This formulation permits general source information, such as position and moment tensor components, to be independently obtained. This inversion scheme may lead to a range of potential applications#xD;where both medium properties and source information are required.