会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 41. 发明授权
    • Low field magnetoresistance of intergranular tunneling in field-aligned chromium dioxide powders
    • 场对齐二氧化铬粉末晶间隧道的低场磁阻
    • US06632517B1
    • 2003-10-14
    • US09934458
    • 2001-08-21
    • Jinke TangJianbiao Dai
    • Jinke TangJianbiao Dai
    • G11B539
    • G01R33/09H01F1/408H01F10/1936H01F41/14Y10T428/1121Y10T428/1136Y10T428/256Y10T428/265
    • The magnetic and magnetotransport properties of field-aligned single domain half-metallic CrO2 powders have been studied. Needle-shaped nanoparticles of CrO2 have been aligned in a strong magnetic field. The aligned powder sample shows a strong anisotropy along the alignment direction. The conduction mechanism of the aligned CrO2 powder sample has been examined and is consistent with the intergranular spin dependent tunneling. Negative tunneling magnetoresistance (TMR) of about 41% is achieved in a small field in the vicinity of the coercive field at 5 K. The magnetoresistance (MR) versus field curve shows two well-separated narrow peaks at the coercive fields and resembles that of a magnetic tunnel junction. This junction-like MR results from the narrow switching field distribution of the aligned powders. The results suggest that the aligned magnetic CrO2 particles may find novel applications in spin transport structures and devices.
    • 已经研究了场对齐单畴半金属CrO 2 粉末的磁性和磁性传输特性。 已经在强磁场中对准了CrO 2 的针状纳米颗粒。 对准的粉末样品沿着取向方向显示出强烈的各向异性。 已经检查了对准的CrO 2 粉末样品的传导机理,并且与晶间自旋相关隧道一致。 在5K的矫顽磁场附近的小场中实现了大约41%的负隧穿磁阻(TMR)。磁阻(MR)对场曲线显示出在矫顽场上两个分离得很好的窄峰,类似于 磁隧道结。 这种结状MR由对准的粉末的窄的开关场分布产生。 结果表明,对准磁性CrO 2 颗粒可能会在自旋传输结构和器件中发现新的应用。
    • 49. 发明公开
    • 강자성 그래핀 및 그를 구비한 스핀밸브 소자
    • FERROMAGNETIC GRAPHENE AND SPIN VALVE DEVICE PEROPTING THE SAME
    • KR1020120134220A
    • 2012-12-12
    • KR1020110052998
    • 2011-06-01
    • 삼성전자주식회사
    • 이성훈
    • C01B31/02H01L43/08G01R33/09
    • G01R33/093B82Y10/00B82Y30/00G11B5/3903G11B5/398G11C11/161G11C2213/35H01F10/005H01F10/3281H01F41/306H01L29/1606H01L43/10Y10T428/1107Y10T428/1136C01B32/182C01B2204/20
    • PURPOSE: Ferromagnetic graphene and a spin valve element including the same are provided to convert a graphene region into a ferromagnetic region and to adjust the ferromagnetism of the ferromagnetic region. CONSTITUTION: Ferromagnetic graphene includes at least one antidot. The antidot is triangular or hexagonal. The hexagonal antidot includes three first sides of pre-determined lengths and three second sides of lengths are shorter than the lengths of the first sides. The first sides and the second sides are alternately arranged. The first sides and the second sides respectively include at least one zigzag edge. The triangular antidot includes a zigzag edge and an arm chair edge at each side. The aperture of the antidot region in the graphene is approximately 20-80%. The graphene includes successively connected first region, second region, and third region, and at least one antidot is respectively formed at the first region and the third region. Ferromagnetism appears in the first region and the third region. The second region is non-ferromagnetic.
    • 目的:提供铁磁石墨烯和包括其的自旋阀元件以将石墨烯区域转换成铁磁区域并调节铁磁性区域的铁磁性。 构成:铁磁石墨烯包括至少一种antidot。 解毒剂是三角形或六角形。 六角形棘爪包括预定长度的三个第一侧,长度的三个第二侧比第一侧的长度短。 第一面和第二面交替排列。 第一面和第二面分别包括至少一个之字形边。 三角形的蚂蚁包括一个锯齿形边和两边的扶手椅边。 石墨烯中的解毒剂区域的孔径约为20-80%。 石墨烯包括连续连接的第一区域,第二区域和第三区域,并且在第一区域和第三区域分别形成至少一个解毒剂。 铁磁体出现在第一个地区和第三个地区。 第二区域是非铁磁性的。