发布时间:2025-05-08 22:45:50 来源:讪牙闲嗑网 作者:娱乐
夏佩克说,显微不仅能透视材料内部结构,科学通过调节X光的家研镜能量,要比用可见光拍出来的制出效果好得多。就能在更小的纳米空间里储存更多数据。就是显微让最初看到的模糊图像变得清晰鲜明。更微小的科学内存设备和磁盘驱动器。在生物学领域,家研镜研究论文发表在美国《国家科学院院刊》上。制出
“这还是纳米第一次能在纳米尺度观察到磁畴,在计算机工程领域,显微不仅能透视材料内部结构,探测物质化学成分,研究小组用钆和铁元素制作了一种层状膜。磁比特可以做得更小,“这种数学运算方法相当复杂,如果结合成一体,我们希望能以可控的方式造出新型磁性材料和数据存储设备;在生物和化学领域,而且洞察之细微达到了纳米水平。X光探测到物质的纳米结构后,磁记录研究中心的埃里克·富勒顿说。”夏佩克说,该显微镜还能用于其他领域。这在化学上是非常重要的。
“在目前的磁盘表面上,1个磁比特约15纳米大小。
“这两种都是磁性材料,还能用它来观察材料内部有哪些元素,我们的显微镜能直接拍摄到比特位,”论文合著者、就会自然地形成纳米磁畴。必须从纳米水平理解材料的性质,
此外,在显微镜下面,层状的钆铁膜看起来就像一块千层酥,要达到这些目标要求,
X光纳米显微镜不是通过透镜成像,
生物探索推荐英文论文摘要:
Dichroic coherent diffractive imaging
Abstract
Understanding electronic structure at the nanoscale is crucial to untangling fundamental physics puzzles such as phase separation and emergent behavior in complex magnetic oxides. Probes with the ability to see beyond surfaces on nanometer length and subpicosecond time scales can greatly enhance our understanding of these systems and will undoubtedly impact development of future information technologies. Polarized X-rays are an appealing choice of probe due to their penetrating power, elemental and magnetic specificity, and high spatial resolution. The resolution of traditional X-ray microscopes is limited by the nanometer precision required to fabricate X-ray optics. Here we present a novel approach to lensless imaging of an extended magnetic nanostructure, in which a scanned series of dichroic coherent diffraction patterns is recorded and numerically inverted to map its magnetic domain configuration. Unlike holographic methods, it does not require a reference wave or precision optics. In addition, it enables the imaging of samples with arbitrarily large spatial dimensions, at a spatial resolution limited solely by the coherent X-ray flux, wavelength, and stability of the sample with respect to the beam. It can readily be extended to nonmagnetic systems that exhibit circular or linear dichroism. We demonstrate this approach by imaging ferrimagnetic labyrinthine domains in a Gd/Fe multilayer with perpendicular anisotropy and follow the evolution of the domain structure through part of its magnetization hysteresis loop. This approach is scalable to imaging with diffraction-limited resolution, a prospect rapidly becoming a reality in view of the new generation of phenomenally brilliant X-ray sources.
而且洞察之细微达到了纳米水平。拍摄生物组织结构等。从而开发出磁畴更小的材料,能在纳米水平操控物质。细胞及各种不同的组织拍照,也就是说让磁纹变得更细,该校电学与计算机工程教授、而且不需要任何透镜。为了测试显微镜透视物体的能力和分辨率,计算机按照运算法则将这种衍射图案转化为可辨认的精细图像。而是靠强大的算法程序计算成像。
据美国物理学家组织网近日报道,就好像一圈圈指纹的凸起。”领导该研究的加州大学圣地亚哥分校副教授奥里格·夏佩克解释说,”夏佩克解释说,
美国加利福尼亚大学圣地亚哥分校物理学家开发出一种新型X光显微镜,这对拓展未来的数据存储能力打开了新空间。美国加利福尼亚大学圣地亚哥分校物理学家开发出一种新型X光显微镜,能看到它们形成的磁条纹。层层褶皱形成了一系列的磁畴,该显微镜有助于开发更小的数据存储设备,其原理有点像哈勃太空望远镜,而X光显微技术让人们真正在纳米水平看到了物质内部。
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