采用自旋波理论研究向列相液晶。
A spin wave theory of nematic liquid crystals was proposed in this paper.
讨论了自旋波与界面耦合条件的关系。
The relations between spin waves and interface coupling are discussed.
本文研究了磁性薄膜中的自旋波共振激发现象。
In this work, the phenomena of excitation of SWR (Spin Wave Resonance) in magnetic films are investigated.
结果表明，中间耦合会出现自旋波的共振局域现象。
It is shown that resonant confined models of spin wares occurs when the interface coupling is moderately strong.
我们也分析了相图、基态能量和自旋波色散关系的改变。
We analyse the change of the phase diagram, the ground state energy and the spin wave dispersions.
第二章研究了体非均匀性对垂直磁化薄膜中的自旋波的影响。
The effect of bulk heterogeneity on spin waves in a perpendicular magnetization film, are discussed in chapter 2.
利用标准的自旋波理论，研究了二维三角海森堡反铁磁体的色散关系。
On the basis of standard spin-wave theory, the magnetic dispersion relations for a two-dimensional Heisenberg antiferromagnet are investigated.
在所得结果的基础上，讨论了具有反铁磁氧化层的铁磁薄膜的自旋波共振。
On the basis of the results obtained, the spin-wave resonance of a ferromagnetic film with a surface of antiferromagnetic oxide is discussed.
所得结果在低温时与自旋波理论作了比较，在高温时与已有的结果比较接近。
These results are compared with those of the spin wave theory for low temperatures.
将电子自由度积掉后，我们得到了描述核自旋的有效作用量以及核自旋的自旋波传播子。
After integrating out the electron degrees of freedom, we derive the effective action describing the nuclear spins and the propagator for the spin wave.
采用改进的界面重参数方法，讨论了周期边界条件下同质双层铁磁膜中自旋波本征激发问题。
The eigen problems of spin waves in a homogeneous ferromagnetic bilayered system with periodic boundary conditions are solved by using the improved interface-rescaling approach.
对于我们研究工作的主要对象三维XY模型，介绍了自旋波和自洽平均场理论在其中的应用。
With respect to the three-dimensional XY model which attracts the most attention of our latter work's, we introduced the spin wave theory and the self-consistent mean-field theory applied in it.
本文主要论述了静磁模、电磁模、偶极交换模以及交换模等各种自旋波的特点以及它们的实验探测方法。
This paper mainly discussed their characteristics of magnetostatic modes, dipole-exchange modes and exchange modes and reviewed their detectable methods in experiments.
对双层铁磁薄膜构成的系统，考虑界面铁磁性和反铁磁性耦合对自旋波色散关系、波形演化及共振的影响。
Considering the interface couplings (ferromagnetic coupling and antiferromagnetic coupling), the spin-wave dispersion relations, wave forms and resonant spectra in ferromagnetic bilayers are studied.
应用线性自旋波的理论和格林函数运动方程技术，利用数值计算的方法得到铁磁-反铁磁双层系统的低温比热。
Using spin wave theory and the equation of motion technique for the Green function, specific heat of ferromagnetic antiferromagnetic double layers at low temperature is investigated.
研究了具有各向异性的双层磁性薄膜中自旋波的本征值问题 ，重点讨论了磁各向异性对自旋波波形的影响 。
The effect of bulk single uniaxial anisotropy on dispersion relations and resonant spectra of spin waves in bilayer films with antiferromagnetic coupling are investigated.
最后，研究人员用调频范围的无线波将自旋写在磷原子核上。
Then they used FM-range radio waves to “write” the spin onto the phosphorus nuclei, as explained by the University of Utah.
掺杂能激发电荷密度波，从而削弱了自旋密度波，最终不利于铁磁态的稳定。
Doping can excite a charge density wave weakening the spin density wave against the stability of the ferromagnetic state.
超新星遗迹中可能还存留有脉冲星或自旋中子星，而这些都会产生引力波。
Supernovae remnants can leave behind pulsars or spinning neutron stars that may produce gravitational waves.
超新星遗迹中可能还存留有脉冲星或自旋中子星，而这些都会产生引力波。
Supernovae remnants can leave behind pulsars or spinning neutron stars that may produce gravitational waves.
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