FePt multilayer films with a boron underlayer are prepared on Si(100)substrates using magnetron sputtering and vacuum annealing is carried out to obtain the hard magnetic L10 phase.According to the microstructural and...FePt multilayer films with a boron underlayer are prepared on Si(100)substrates using magnetron sputtering and vacuum annealing is carried out to obtain the hard magnetic L10 phase.According to the microstructural and magnetic measurement results,the ordering of the FePt films is facilitated at low annealing temperatures while it is blocked at high ones by introducing boron.Moreover,(001)orientation of the samples is obviously improved by inserting a boron underlayer,which is further confirmed by the MFM analysis.The relevant mechanism is discussed by considering the diffusion of boron atoms and the consequential in-plane tensile stress.展开更多
This study aimed to investigate the effects of treatments of rice pollen with different solvents on the seed setting rate.Rice pollen was treated with ultrapure water,0.5%dimethyl sulfoxide,ethanol(1%,5%,and 8%),and 0...This study aimed to investigate the effects of treatments of rice pollen with different solvents on the seed setting rate.Rice pollen was treated with ultrapure water,0.5%dimethyl sulfoxide,ethanol(1%,5%,and 8%),and 0.5%dimethyl sulfoxide+8%ethanol,and the pollen without treatment was taken as the control.Then,crossing was conducted with the treated rice plants as the male parents and plants subjected to emasculation by warm water as the female parents.The seed setting rates of the male and female parents were then recorded.The results showed that the treatments with different solvents significantly decreased the seed setting rates of both male and female parents.The treatment with 1%ethanol resulted in the highest seed setting rates for both male and female parents,while the treatment with 0.5%dimethyl sulfoxide resulted in the lowest seed setting rates for both parents.Although these solvents affected the seed setting rate of rice,they served as intermediate solvents to dissolve chemicals used in the induction of rice haploids.This study layed a technical foundation for subsequent chemical induction of rice haploids.展开更多
基金by the National Natural Science Foundation of China under Grant No 50871007the Research Fund for the Doctoral Program of Higher Education of China.
文摘FePt multilayer films with a boron underlayer are prepared on Si(100)substrates using magnetron sputtering and vacuum annealing is carried out to obtain the hard magnetic L10 phase.According to the microstructural and magnetic measurement results,the ordering of the FePt films is facilitated at low annealing temperatures while it is blocked at high ones by introducing boron.Moreover,(001)orientation of the samples is obviously improved by inserting a boron underlayer,which is further confirmed by the MFM analysis.The relevant mechanism is discussed by considering the diffusion of boron atoms and the consequential in-plane tensile stress.
基金Supported by Agricultural Science and Technology Innovation Fund Project of Hunan Province(2023-CX17)Yuelushan Seed Industry Innovation Project of Hunan Innovation Province Construction Special Project(2021NK1012)。
文摘This study aimed to investigate the effects of treatments of rice pollen with different solvents on the seed setting rate.Rice pollen was treated with ultrapure water,0.5%dimethyl sulfoxide,ethanol(1%,5%,and 8%),and 0.5%dimethyl sulfoxide+8%ethanol,and the pollen without treatment was taken as the control.Then,crossing was conducted with the treated rice plants as the male parents and plants subjected to emasculation by warm water as the female parents.The seed setting rates of the male and female parents were then recorded.The results showed that the treatments with different solvents significantly decreased the seed setting rates of both male and female parents.The treatment with 1%ethanol resulted in the highest seed setting rates for both male and female parents,while the treatment with 0.5%dimethyl sulfoxide resulted in the lowest seed setting rates for both parents.Although these solvents affected the seed setting rate of rice,they served as intermediate solvents to dissolve chemicals used in the induction of rice haploids.This study layed a technical foundation for subsequent chemical induction of rice haploids.
