MAGNETIC NANOSTRUCTURES
    1.
    发明申请
    MAGNETIC NANOSTRUCTURES 审中-公开
    磁性纳米结构

    公开(公告)号:US20110274928A1

    公开(公告)日:2011-11-10

    申请号:US12965265

    申请日:2010-12-10

    申请人: Feng LIU

    发明人: Feng LIU

    IPC分类号: B32B3/00 B82Y99/00

    摘要: A magnetic material is disclosed including magnetic nanostructures such as nanodots or nanoribbons. The long range magnetic ordering of the material may depend on one or more structural characteristics of the nano structures.

    摘要翻译: 公开了磁性材料,其包括诸如纳米点或纳米带的磁性纳米结构。 材料的长程磁性排序可以取决于纳米结构的一个或多个结构特征。

    Method and system for magnetic recording using self-organized magnetic nanoparticles
    2.
    发明授权
    Method and system for magnetic recording using self-organized magnetic nanoparticles 失效
    使用自组织磁性纳米粒子的磁记录方法和系统

    公开(公告)号:US07781078B2

    公开(公告)日:2010-08-24

    申请号:US12241509

    申请日:2008-09-30

    IPC分类号: G11B5/65 G11B5/712

    摘要: A method and system for magnetic recording using self-organized magnetic nanoparticles is disclosed. The method may include depositing surfactant coated nanoparticles on a substrate, wherein the surfactant coated nanoparticles represent first bits of recorded information. The surfactant coating is then removed from selected of the surfactant coated nanoparticles. The selected nanoparticles with their surfactant coating removed may then be designated to represent second bits of recorded information. The surfactant coated nanoparticles have a first saturation magnetic moment and the selected nanoparticles with the surfactant coating removed have a second saturation magnetic moment. Therefore, by selectively removing the surfactant coating from certain nanoparticles, a write operation for recording the first and second bits of information may be performed. A read operation may be carried out by detecting the different magnetic moments of the surfactant coated nanoparticles and the non-surfactant coated nanoparticles.

    摘要翻译: 公开了一种使用自组织磁性纳米颗粒进行磁记录的方法和系统。 该方法可以包括在衬底上沉积表面活性剂涂覆的纳米颗粒,其中表面活性剂涂覆的纳米颗粒表示记录信息的第一位。 然后从选择的表面活性剂涂覆的纳米颗粒中除去表面活性剂涂层。 然后将其去除其表面活性剂涂层的所选择的纳米颗粒指定为表示记录信息的第二位。 表面活性剂涂覆的纳米颗粒具有第一饱和磁矩,并且去除了表面活性剂涂层的所选纳米颗粒具有第二饱和磁矩。 因此,通过从某些纳米颗粒中选择性地去除表面活性剂涂层,可以执行用于记录信息的第一和第二位的写入操作。 可以通过检测表面活性剂涂覆的纳米颗粒和非表面活性剂涂覆的纳米颗粒的不同磁矩来进行读取操作。

    Ferromagneic Influence on Quantum Dots
    4.
    发明申请
    Ferromagneic Influence on Quantum Dots 审中-公开
    铁质对量子点的影响

    公开(公告)号:US20080277645A1

    公开(公告)日:2008-11-13

    申请号:US11579653

    申请日:2005-05-06

    IPC分类号: H01L29/06 H01L21/00

    摘要: A semiconductor magnetic body comprises a layer (11 15) intended to trap electrons, wherein said layer (11 15) is surrounded on both sides by a magnetic layer (16, 17). This leads to the creation of ferromagnetic character in spatially limited regions of electronic elements such as but not limited to quantum dots, where this creation is achieved using magnetic materials which do not compositionally form part of the region but are rather contained in the zone or zones adjacent to the region.

    摘要翻译: 半导体磁体包括用于捕获电子的层(1115),其中所述层(1115)在两侧被磁性层(16,17)包围。 这导致在诸如但不限于量子点的电子元件的空间有限的区域中产生铁磁性,其中使用不组成地形成区域的一部分但是被包含在区域或区域中的磁性材料来实现 毗邻该地区。

    Patterning magnetic nanostructures
    5.
    发明授权
    Patterning magnetic nanostructures 失效
    图案磁性纳米结构

    公开(公告)号:US07223438B2

    公开(公告)日:2007-05-29

    申请号:US10663976

    申请日:2003-09-17

    IPC分类号: B05D5/12

    CPC分类号: B82Y25/00 H01F1/009

    摘要: A direct-write method for fabricating magnetic nanostructures, including hard magnetic nanostructures of barium hexaferrite, BaFe, based on nanolithographic printing and a sol-gel process. This method utilizes a conventional atomic force microscope tip, coated with a magnetic material precursor solution, to generate patterns that can be post-treated at elevated temperature to generate magnetic features consisting of barium ferrite in its hexagonal magnetoplumbite (M-type) structure. Features ranging from several hundred nm down to below 100 nm were generated and studied using AFM, magnetic force microscopy, and X-ray photoelectron spectroscopy. The approach offers a new way for patterning functional inorganic magnetic nanostructures with deliberate control over feature size and shape, as well as interfeature distance and location.

    摘要翻译: 一种用于制造磁纳米结构的直写方法,包括基于纳米光刻印刷的六方铁钡钡硬质纳米结构和BaFe,以及溶胶 - 凝胶法。 该方法利用传统的原子力显微镜尖端,涂覆有磁性材料前体溶液,以产生可在升高的温度下进行后处理的图案,以产生由六方晶磁石(M型)结构的钡铁氧体组成的磁特征。 使用AFM,磁力显微镜和X射线光电子能谱技术生产并研究了从几百nm到低于100nm的特征。 该方法提供了一种新颖的方式来对功能性无机磁性纳米结构进行图案化,并有意识地控制特征尺寸和形状,以及间隔距离和位置。

    Artificial ferromagnetism in semiconducting arrays
    6.
    发明申请
    Artificial ferromagnetism in semiconducting arrays 审中-公开
    半导体阵列中的人造铁磁性

    公开(公告)号:US20060054985A1

    公开(公告)日:2006-03-16

    申请号:US11122948

    申请日:2005-05-05

    申请人: Daniel Mattis

    发明人: Daniel Mattis

    IPC分类号: H01L27/14

    摘要: Nanostructures are provided having electronic properties suitable for artificial ferromagnetism or anti-ferromagnetism in semiconducting arrays. An artificial ferromagnet device comprises an insulator substrate, and a semiconductor material over the insulator substrate. The semiconductor material has a bipartite architecture comprising interconnected, nonmagnetic nanodots organized into a plurality of cells in a trellis structure in which there is one electron per nanodot. Similarly, a nano-logical memory element comprises an insulator substrate, and a semiconductor material over the insulator substrate. The semiconductor material has a bipartite architecture comprising interconnected, nonmagnetic nanodots with a given electron concentration. A method is also provided for insulator-to-metallic transition that allows for signal and power amplification when a semiconductor array is imbedded in MOSFET geometry.

    摘要翻译: 提供具有适合于半导体阵列中的人造铁磁性或抗铁磁性的电子性质的纳米结构。 人造铁磁体装置包括绝缘体衬底和绝缘体衬底上的半导体材料。 半导体材料具有包括互连的非磁性纳米点的二部分结构,其组织成格状结构中的每个纳米点有一个电子的多个单元。 类似地,纳米逻辑存储元件包括绝缘体衬底和绝缘体衬底上的半导体材料。 半导体材料具有包括具有给定电子浓度的相互连接的非磁性纳米点的二部分结构。 还提供了一种用于绝缘体到金属转变的方法,其允许在半导体阵列嵌入MOSFET几何形状时进行信号和功率放大。

    Fabrication of nanoparticle arrays
    7.
    发明申请
    Fabrication of nanoparticle arrays 审中-公开
    纳米颗粒阵列的制备

    公开(公告)号:US20060003097A1

    公开(公告)日:2006-01-05

    申请号:US10913258

    申请日:2004-08-06

    IPC分类号: B05D5/06 B05D3/02

    摘要: The self-assembly of a close-packed, highly-ordered monolayers of molecularly protected nanoparticles on an assembly surface is disclosed. Also disclosed is the transfer of a nanoparticle monolayer from an assembly surface to a transfer surface. The transfer of a monolayer or multilayer structure of nanoparticles from a transfer surface to a substrate by conformal contact of the transfer surface with the substrate is disclosed. Also disclosed is the removal of protective molecules from nanoparticle cores by exposure to an oxidizing atmosphere (optionally in the presence of UV radiation). The exchange of protective molecules in molecularly protected nanoparticles with other molecules is also disclosed.

    摘要翻译: 公开了在组装表面上分子保护的纳米颗粒的紧密堆积的高度有序的单层的自组装。 还公开了纳米颗粒单层从组装表面转移到转移表面。 公开了通过转印表面与基底的共形接触将纳米颗粒的单层或多层结构从转移表面转移到基底。 还公开了通过暴露于氧化气氛(任选在存在UV辐射下)从纳米颗粒核心除去保护性分子。 还公开了分子保护的纳米颗粒中的保护性分子与其他分子的交换。

    Patterning magnetic nanostructures
    10.
    发明申请
    Patterning magnetic nanostructures 失效
    图案磁性纳米结构

    公开(公告)号:US20040142106A1

    公开(公告)日:2004-07-22

    申请号:US10663976

    申请日:2003-09-17

    IPC分类号: B05D005/00

    CPC分类号: B82Y25/00 H01F1/009

    摘要: A direct-write method for fabricating magnetic nanostructures, including hard magnetic nanostructures of barium hexaferrite, BaFe, based on nanolithographic printing and a sol-gel process. This method utilizes a conventional atomic force microscope tip, coated with a magnetic material precursor solution, to generate patterns that can be post-treated at elevated temperature to generate magnetic features consisting of barium ferrite in its hexagonal magnetoplumbite (M-type) structure. Features ranging from several hundred nm down to below 100 nm were generated and studied using AFM, magnetic force microscopy, and X-ray photoelectron spectroscopy. The approach offers a new way for patterning functional inorganic magnetic nanostructures with deliberate control over feature size and shape, as well as interfeature distance and location.

    摘要翻译: 一种用于制造磁纳米结构的直写方法,包括基于纳米光刻印刷的六方铁钡钡硬质纳米结构和BaFe,以及溶胶 - 凝胶法。 该方法利用传统的原子力显微镜尖端,涂覆有磁性材料前体溶液,以产生可在升高的温度下进行后处理的图案,以产生由六方晶磁石(M型)结构的钡铁氧体组成的磁特征。 使用AFM,磁力显微镜和X射线光电子能谱技术生产并研究了从几百nm到低于100nm的特征。 该方法提供了一种新颖的方式来对功能性无机磁性纳米结构进行图案化,并有意识地控制特征尺寸和形状,以及间隔距离和位置。