相关实验视频

Updated: Jun 17, 2025

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
15:58

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing

Published on: December 3, 2013

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无初始化和无磁场的旋转轨道p-Bits,用于概率应用的反跳式磁化切换

Ruizhi Ren1,2, Yi Cao1, Chao Wang1

  • 1School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.

Nano letters
|August 12, 2024
PubMed
概括

无初始化非挥发性旋转轨道扭矩概率比特 (p-bit) 能够实现更快的概率计算. 这些反跳SOT p-bit显示可调节的切换概率,并有效地实现整数分解.

关键词:
没有初始化的免费.磁化切换开关的使用方法不易挥发的非挥发性物质在p-bits中使用.概率计算是一种概率计算.旋转-轨道扭矩

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Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement09:43

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NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of...
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In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis,  the precessing magnetic moments are randomly oriented around the z-axis.
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Atomic Nuclei: Nuclear Magnetic Moment

All atomic nuclei are positively charged. When they have a nonzero spin, they behave like rotating charges. As a consequence of their charge and spin, these nuclei generate a magnetic field (B). This, in turn, gives rise to a magnetic moment (μ), which is randomly oriented in the absence of an external magnetic field. When an external magnetic field (B0) is applied, the magnetic moment vectors can align with the field or against it in 2 + 1 orientations. A hydrogen nucleus, which is just a...
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