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transition temperature (Tp) increases from 2% to 80% with x from 0 to 4% for a low field of 0.3 T. The experiment also shows that the intergrain magnetoresistance is largely improved. The results indicate...Giant Low-Field Magnetoresistance in Polycrystalline La2/3Ca1/3Mn1-xCuxO3 Sintered at 1100 ℃ 夏正才1,刘洁1,袁松柳1,张国庆1,杨应平1 (1.Department of Physics,Huazhong University of Science and Technology, Wuhan......
Research progress in anisotropic magnetoresistanceChong-Jun Zhao1,Lei Ding2,Jia-Shun HuangFu1,Jing-Yan Zhang1,Guang-Hua Yu11. Department of Materials Physics and Chemistry, University of Science and Technology Beijing2. School of Materials and Chemical Engineering, Hainan University摘 要:Anisotropic magnetoresistance (AMR) is an important physical......
et al[12] found a weak magnetoresistance(MR) of 0.15% in current-in-plane(CIP) mode at room temperature(RT) and the opposite temperature dependences at different Si spacer thickness which... to the high resistivity of Si spacer. While in Co/Si/(Co/Cu/Co) multilayers, we observed a spin-valve MR of about 0.5% through a nominal 2.7nm Si spacer at room temperature. The spin-valve MR in Co/Si/(Co......
Magnetoresistance Plateau in La2/3Ca1/3BixMn1-xO3 Granular System张国庆1,潘春旭1,21. Department of Physics,Wuhan University2. Key Laboratory of Acoustic and Photonic Materials and Devices of Ministry of Education,Wuhan University摘 要:The effect of doping additional Bi on the magnetoresistance (MR) of La2/3Ca1/3BxMn1-x O3 was investigated. It is found......
%. The antiferromagnetic interlayer coupling could be observed in some films at room temperature. The strength of the antiferromagnetic interlayer coupling J in the films is low because of the low...MAGNETORESISTANCE EFFECT OBSERVED IN Fe/Mo MULTILAYERS PREPARED BY ELECTRON BEAM EVAPORATION F.Zeng1,F.Pan1,B.Zhao1,T.He1,Y.Gao1 (1.Laboratory of Advanced Materials, Department of Materials Science......
is significantly broadened, spanned from the lowest to near room temperature. These results suggest that Mn-site element substitution could be a potent way of tuning CMR response. Key words:coherence...Research of Colossal Magnetoresistance in La0.67Ca0.33Mn1-xCrxO3 (0.00≤x≤0.15) 孙勇1,刘宁1 (1.Structure Research Laboratory,University of Science and Technology of China,Hefei 230026,China;2.Department......
Magnetoresistance Study of YCo6Ge6-type Dy0.4Sm0.6Mn6Ge6 Compound汪汝武,张立刚,李亚伟,陈静,李云宝,张国宏摘 要:The magnetoresistance (MR) measurements on a naturally occurring multilayer Dy0.4Sm0.6Mn6Ge6 were presented, which is ferrimagnetic below 445 K. In the temperature range below 65 K, MR displays a maximal value around 3 T and above this critical field MR decreases......
leads to a decrease in the ferromagnetic ordering temperature, an increase in the resistance and magnetoresistance effect. For samples of x=0.05 and x=0.08 two peaks are observed in their ρ-T curve...Magnetic Properties and Colossal Magnetoresistance of La0.7Sr0.3MnO3 Materials Doped with Fe 马廷钧1,张健2,鲜于文旭3,李宝河1 (1.Beijing Technology and Business University, Beijing 100037, China;2.Institute......
temperature when the system is close to the metallic percolation threshold of x=0.4. The magnetoresistance ratio of ( LCMO)0.4 /( ZrO2 )0.6 in a 10 mT magnetic field at 77 K is 7.8 %, about 7.12 times... addition, Curie temperature TC decreases firstly and then remains constant at about 220 K when x Key words:inorganic non-metallic materials; composite system; colossal magnetoresistance; interfacial......
