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巨磁电阻读出磁头 周文利1,王耘波1,于军1,谢基凡1,高俊雄1,颜冲1 (1.华中科技大学电子科学与技术系,) 摘要:用巨磁电阻(GMR)材料构成的磁电子学新器件,已开始在计算机存储领域 成功地获得了应用.本文介绍了用于计算机硬磁盘驱动器的巨磁电阻磁头,描 述了它的工作原理,性能特点及研究现状和发展趋势. 关键词:巨磁电阻; 读出磁头; 存储密度; [全文内容正在添加中] ......
that the Grüneisen parameters of Kondo temperature TK are 13 and 42 for α-Ce and CeBe13, respectively, and it decreases with increasing pressure. The magnetoresistance of α-Ce shows H2 dependence and its......
Hall effect in the absence of spin-orbit coupling and exploring the anisotropic magnetoresistance and domain-wall-related magnetoresistance effects for noncollinear antiferromagnetic materials.
of the nanocrystalline ribbon Fe84Zr2.08Nb1.92CU1B11 (atom fraction in %) was investigated. There is an optimum annealing temperature (TA≈998 K) for obtaining the largest GMI (giant magnetoimpedance) effect... monotonically with increasing frequency, which may be due to the decrease of permeability. In contrast, with the AC (alternating current) frequency increasing, the magnetoresistance GMI(R) increases at first......
direction magnetoresistance effect through the transitive range, and becomes the dominant effect in the temperature range from 5 to 25 K, which leads to the dramatic decrease of resistivity.关键...The Effect of Magnetic Field on Resistivity of Hg0.89Mn0.11Te in Different Temperature Range王泽温1,2,JIE Wanqi31. School of Insurance and Economics, University of International Business and Economics2......
fraction) alloy was achieved by room-temperature reaction milling in hydrogen, with the mechanical energy serving as the driving force for the process. The hydriding progress during milling was examined...), respectively. The results show that, by room-temperature reaction milling in hydrogen, the as-cast ZK60 Mg alloy can be fully hydrided to form a nanocrystalline MgH2 single-phase microstructure......
有机磁电阻效应研究进展 王良民1,张兆刚1,余天1,吕铃1,陈鹏1,李定国1,高春红1,李杏清1,郝身芬1 (1.西南大学物理科学与技术学院,重庆,400715) 摘要:介绍了近年国际上在π共轭有机半导体中新发现的有机磁电阻效应(Organic magnetoresistance,O-MAR)实验和理论的研究进展,展望了有机磁电阻效应的应用和研究.有机磁电阻效应不仅具有各向同性,常温下大磁电阻率和高磁场灵敏度的特点,而且不同于传统的磁电阻效应和目前广泛研究的巨磁电阻效应(Giant magnetore-sistance,GMR),其结构中不包含磁性材料也没有外部极化自旋的注入,是有机半导体的一种内禀性质. 关键词:π共轭有机半导体; 磁电阻效应; 有机磁电阻效应; [全文内容正在添加中] ......
temperature, the room temperature strength increases at first and then decreases, while the high temperature strength increases gradually, but the room-temperature and high-temperature ductility decreases. After annealing at 980 ℃, BTi-6431S alloy acquires good strength at high-temperature and plasticity at room-temperature. The ultimate tensile strength at 650 ℃ can reach more than 600 MPa......
resistivity, decreases the semiconductor–metal transition temperature(Tms) and relatively enhances the room temperature magnetoresistance(MR), especially in x = 0.025 and around Tms. With respect......
the spinning electron transport and the magnetoresistance effect.关键词:......
