Rb-substitued Pr1-xRbxMnO3（0.05≤x≤0.08） reaction. Powder X-ray diffraction showed that the space group of Pnma. Spin glass behaviors was successfully synthesized by solid state all the compounds were orthorhombic...Rb-substitued Pr1-xRbxMnO3（0.05≤x≤0.08） reaction. Powder X-ray diffraction showed that the space group of Pnma. Spin glass behaviors was successfully synthesized by solid state all the compounds were orthorhombic with were observed for all the compounds at low temperature, suggesting the competition between ferromagnetic and antiferromagnetic. The temperature dependence of the resistivity for the compound Pr0.92Rb0.0sMnO3.02 at 0 and 2 T magnetic field was also investigated. The compound shows semiconducting behavior, and the band gap is 0.3 eV. The maximum magnetoresistance is about 30% at 2 T magnetic field near 116 K.展开更多
This paper reports on the preparation of Fe82.7-85.7Si2-4.9B9.2-11.2P1.5.2.7C0,8 soft magnetic amorphous alloys with a distinctly high Fe content of 93.5-95.5 wt.% by component design and composition adjustment. All a...This paper reports on the preparation of Fe82.7-85.7Si2-4.9B9.2-11.2P1.5.2.7C0,8 soft magnetic amorphous alloys with a distinctly high Fe content of 93.5-95.5 wt.% by component design and composition adjustment. All alloys can be readily fabricated into completely amorphous ribbon samples with good surface quality by the single copper roller melt-spinning method. These alloys show good bending ductility and excellent magnetic properties after annealing, i.e., low coercivity （He） of 3.3-5.9 A/m, high permeability （μe） of 5000-10000 and high flux saturation density （Bs） of 1.63-1.66 T. The mechanism of the good glass forming ability （GFA）and soft-magnetic properties are explored. The amorphous alloys with the high Fe content comparable to that of the desired high Si alloy can be promising candidates for the potential application in electric devices.展开更多
基金National Natural Science Foundationof China(10504019,10674092)Shanghai Nano-technology Promotion Center and the Science & Technology Committee of Shanghai Municipality(0652nm046).
文摘Rb-substitued Pr1-xRbxMnO3（0.05≤x≤0.08） reaction. Powder X-ray diffraction showed that the space group of Pnma. Spin glass behaviors was successfully synthesized by solid state all the compounds were orthorhombic with were observed for all the compounds at low temperature, suggesting the competition between ferromagnetic and antiferromagnetic. The temperature dependence of the resistivity for the compound Pr0.92Rb0.0sMnO3.02 at 0 and 2 T magnetic field was also investigated. The compound shows semiconducting behavior, and the band gap is 0.3 eV. The maximum magnetoresistance is about 30% at 2 T magnetic field near 116 K.
基金the National Natural Science Foundation of China(Grant No.51541106)Ningbo International Cooperation Projects(Grant No.2015D10022)+2 种基金Ningbo Major Project for Science and Technology(Grant No.201401B1003003)Ningbo Natural Science Foundations(Grant No.2015A610007)General Research Fund of Hong Kong(Grant No.CityU 102013)
文摘This paper reports on the preparation of Fe82.7-85.7Si2-4.9B9.2-11.2P1.5.2.7C0,8 soft magnetic amorphous alloys with a distinctly high Fe content of 93.5-95.5 wt.% by component design and composition adjustment. All alloys can be readily fabricated into completely amorphous ribbon samples with good surface quality by the single copper roller melt-spinning method. These alloys show good bending ductility and excellent magnetic properties after annealing, i.e., low coercivity （He） of 3.3-5.9 A/m, high permeability （μe） of 5000-10000 and high flux saturation density （Bs） of 1.63-1.66 T. The mechanism of the good glass forming ability （GFA）and soft-magnetic properties are explored. The amorphous alloys with the high Fe content comparable to that of the desired high Si alloy can be promising candidates for the potential application in electric devices.
