自旋方向

特别是随着时间的演化，系统的平均自旋方向的分布和摆动也与初态所处的空间结构有着密切的联系。

In particular , with time evolution , distribution and swing of the mean spin direction is closely related to the structure of the space where the initial coherent state centred in .

研究发现，磁势垒结构中的隧穿时间很大程度上依赖于势垒结构、偏压、电子入射能量和它的自旋方向，以及纵向波矢。

It is shown that the tunneling time in magetic barrier structures is strongly depended on the magnetic configuration , the applied bias , the incident energy and the electron spin as well as the longitudinal wave vector .

根据集团内由于格点自旋方向随时可变的几率分布造成的物理学非均匀性定义了集团容量维，并引进了集团的基本群概念。

The capacity dimension of the cluster is defined according to the physical nonuniformity resulted from the different probability distributions of lattice spines directions with time in a cluster , and a concept of fundamental group of the cluster is introduced .

纵向极化电子，就是自旋和动量方向相同的电子。

Longitudinally polarized electrons are the electrons with spin and momentum pointing in the same direction .

本章展示了这种电荷流的整流效应。我们发现当自旋偏压的极化方向（同时也是自旋的量子化轴）沿着QPC的横向时，两个自旋守恒的传输系数随入射能量的变化显著不同。

We demonstrate the rectification of such a current in Chapter 2 . When the polarization orientation of the spin bias ( which is the spin-quantization axis ) is along the transverse direction of the QPC , the two spin-conserved transmissions show a distinct variation with the incident energy .

如果水分子中的两个氢原子核自旋以相同的方向取向，则称为正水分子。

If the nuclear spins of the two hydrogen atoms in water are oriented in the same direction , it is called ortho-water .

砂轮本身的结构特点可保证高点磨削的实现，而磨削等概率性则依赖于：生坯球合适的自旋速度及自旋轴方向的随机变化。

The structure of grinding wheels can realize high point grinding , and the good grinding equiprobability lies on a proper spinning speed and the random variation of the spinning axis .

我们发现此时自旋扩散长度不仅仅对自旋极化方向，而且对自旋注入方向都表现出很强的各向异性。

We find the spin-diffusion length shows strong anisotropy not only for the spin-polarization direction but also for the spin-diffusion direction .

我们发现这两种统计下的自旋弛豫时间几乎没有差别，并且自旋极化方向表现出很强的各向异性。

We show that there is only marginal difference between the spin relaxation times obtained from these two different statistics .

物理上说，相分析中的不定性相应于自旋的某种运动，它保持自旋张量在动量方向的分量不变，且表征此种运动的参量取一定数值。

In general , the ambiguity in the phase shift analysis corresponds to the motion of spin which conserves the components of spin-tensors in the direction of momentum , and the parameters which characterize those general spin motion take the fixed values .

在对整个系统的自旋能量求极小的过程中，我们完全考虑了自旋方向在低温时的热扰动。

In order to obtain the minimum energy of spins , we completely consider the thermal fluctuation of rotated spins at low temperature .

在这些绝缘体中将电场引向电子以此来让其展开初始运动，并通过最终的自旋-轨道交互作用来控制对面电子自旋流移动的方向。

In these materials , applying an electric field to the electrons creates their initial motion , and through the resulting spin-orbit interaction controls where electrons of opposite spins flow .