Manipulating Magnetic Damping of Fe/GeTe Heterostructures by Band Engineering.

Understanding and manipulating magnetic damping, particularly in magnetic heterostructures, is crucial for fundamental research, versatile engineering, and optimization. Although magnetic damping can be enhanced by the band hybridization between ferromagnetic and nonmagnetic materials at the interface, the contribution of individual subbands on the hybridized bands to magnetic damping is fully unexplored. Here, it is found that magnetic damping α is modified by the Fermi level in Fe/GeTe heterostructures via Bi doping.

[Soil Stoichiometry Characterization in the Oasis-desert Transition Zone of Linze, Zhangye].

To investigate the changes in C, N, P, and K contents and ecological stoichiometry of desert oasis soils and to elucidate their ecological responses to environmental factors, 10 sample plots were selected in the Zhangye Linze desert oasis in the middle part of the Hexi Corridor, and surface soil samples were collected to determine the C, N, P and K contents of soils and to reveal the distribution characteristics of soil nutrient contents and stoichiometric ratios in different habitats and the correlation with other environmental factors. The results showed that:① the distribution of soil carbon was uneven and heterogeneous across sites (=0.761, =0.

[Nitrite denitrification characteristics with redox mediator].

This study optimized the nitrite degradation conditions and explored the characteristics of nitrite degradation with redox mediators and nitrite denitrifying bacteria. The results suggested that the optimal condition of nitrite denitrification was 35 degrees C, pH = 8.0, sodium succinate as the carbon source, the C/N rate of 4 and the initial nitrite concentration of 100 mg x L(-1); the optimal AQS concentration was 0.

[Biocatalyst of redox mediators on the denitrification by Paracoccus versutus strain GW1].

The quinone respiration process of Paracoccus versutus strain GW1 was characterized and the effects of the four redox mediators on the denitrification process were studied. The experiment results suggested that quinones were utilized by Paracoccus versutus strain GW1 as electron acceptors in the respiratory chain and reduced to hydroquinone. Batch experiments were carried out to investigate the biocatalyst effect of redox mediators as catalyst on the denitrification process at 35 degrees C.

[Response of the soil ciliate community to ecological restoration in Huajialing, Dingxi, Gansu].

To obtain a better understanding of the responses of soil ciliate communities to ecological restoration, a quarterly survey of the soil ciliate community and seasonal dynamics across five sampling sites of artificial spruce forest was undertaken. A contrast sampling site of wild grassland was used and live observation ciliates and the three level ten-fold dilution method was used in Huajialing, Dingxi, Gansu. A total of 127 species were identified, belonging to three classes, nine orders, 34 families and 50 genera.

Improvement of the uniformity and dipole ferromagnetism in Co nanodots assemblies on Pb/Si(111) via step tuned dimensionality variation.

We fabricated quasi-one-dimensional Co nanochain assemblies and two-dimensional Co nanodot assemblies on Pb/Si(111) substrates by step decoration. The morphology and magnetic properties of these two kinds of Co nanodot assemblies were investigated by in situ scanning tunneling microscopy and magneto-optical Kerr effect measurements. It was found that the steps cannot only improve the uniformity of the Co nanodots, but also increase the critical temperature T(c).