To get a systematic understanding about dependence of deposition conditions on properties of Gd films,a series of Gd films were prepared under different Ar gas pressures:0.5,0.7,1.0,and 1.5 Pa,and another series of Gd...To get a systematic understanding about dependence of deposition conditions on properties of Gd films,a series of Gd films were prepared under different Ar gas pressures:0.5,0.7,1.0,and 1.5 Pa,and another series of Gd films were prepared under different substrate temperatures:25,100,200,350,and 500℃.The effects of the deposition time,Ar pressure,and substrate temperature on microstructures and crystal orientation were investigated by grazingincidence X-ray diffraction(GIXRD)and transmission electron microscopy(TEM).The experimental results show that low Ar pressure and plenty deposition time will contribute to the formation of Gd hcp phase,which has better magnetic properties such as higher Curie temperature and bigger magnetic moment,and high substrate temperature can diminish the inner stress in Gd films and promote lattice parameters closer to those of the ideal Gd hcp-structure.展开更多
Blakeslea trispora is a natural source of carotenoids,includingβ-carotene and lycopene,which have industrial applications.Therefore,classical selective breeding techniques have been applied to generate strains with i...Blakeslea trispora is a natural source of carotenoids,includingβ-carotene and lycopene,which have industrial applications.Therefore,classical selective breeding techniques have been applied to generate strains with increased productivity,and microencapsulatedβ-carotene preparation has been used in food industry(Li et al.,2019).In B.trispora,lycopene is synthesized via the mevalonate pathway(Venkateshwaran et al.,2015).Lycopene cyclase,which is one of the key enzymes in this pathway,is a bifunctional enzyme that can catalyze the cyclization of lycopene to produceβ-carotene and exhibit phytoene synthase activity(He et al.,2017).展开更多
基金financially supported by the National Natural Science Foundation of China(No.5150010868)。
文摘To get a systematic understanding about dependence of deposition conditions on properties of Gd films,a series of Gd films were prepared under different Ar gas pressures:0.5,0.7,1.0,and 1.5 Pa,and another series of Gd films were prepared under different substrate temperatures:25,100,200,350,and 500℃.The effects of the deposition time,Ar pressure,and substrate temperature on microstructures and crystal orientation were investigated by grazingincidence X-ray diffraction(GIXRD)and transmission electron microscopy(TEM).The experimental results show that low Ar pressure and plenty deposition time will contribute to the formation of Gd hcp phase,which has better magnetic properties such as higher Curie temperature and bigger magnetic moment,and high substrate temperature can diminish the inner stress in Gd films and promote lattice parameters closer to those of the ideal Gd hcp-structure.
基金Project supported by the National Key Research and Development Program of China(No.2018YFC1604102).
文摘Blakeslea trispora is a natural source of carotenoids,includingβ-carotene and lycopene,which have industrial applications.Therefore,classical selective breeding techniques have been applied to generate strains with increased productivity,and microencapsulatedβ-carotene preparation has been used in food industry(Li et al.,2019).In B.trispora,lycopene is synthesized via the mevalonate pathway(Venkateshwaran et al.,2015).Lycopene cyclase,which is one of the key enzymes in this pathway,is a bifunctional enzyme that can catalyze the cyclization of lycopene to produceβ-carotene and exhibit phytoene synthase activity(He et al.,2017).
