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spin configurations
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  自旋构形
     Partition functions of 1-D Thue-Molse Frustrated Ising Mobel under periodic boundary condition are given Sharp ahanges of the the thermodynamic function are found at the points where parameter B/J=2/(2m+ 1) (here m=0,1,2), when temperature reaches to aero, Spin configurations of ground states are analyzed to interpret data results in different parameter region at aero temperature
     本文给出一维Thue一Morse序列阻挫伊辛模型在周期边界条件下的配分函数,发现当温度趋于零时系统的热力学函数在参B/J=2/(2m+1)(m=0,1,2)处发生尖锐的跃变,分析了基态在不同参数范围内的自旋构形以解释数值结果.
短句来源
  自旋组态
     The hysteresis loops, spin configurations, and the influences of exchange constant, uniaxial anisotropy constant, dipolar interaction constant and diluted ratio of ferromagnetic atom on the coercivity at the ground states are studied systematically for the studied systems.
     同时,系统研究了混合磁性薄膜的磁化行为,研究基态情况下系统的磁滞回线、自旋组态,及铁磁交换作用常数J_(AA)、各向异性常数K、偶极相互作用常数D、铁磁性原子掺杂量X对矫顽力H_c的影响。
短句来源
     The magnetic properties of ferromagnetically and antiferromagnetically mixed films are simulated by micromagnetism method based on the principle of energy minimum and Monte Carlo technology. The hysteresis loops, spin configurations, and the influences of exchange constant J AA , uniaxial anisotropy constant K , dipolar interaction constant D and diluted ratio of ferromagnetic atom X on the coercivity H c at the ground states are studied systematically for the systems studied.
     采用能量极小原理的微磁学及MonteCarlo方法对铁磁 反铁磁混合磁性薄膜的磁特性进行了模拟计算 ,研究了基态下系统的磁滞回线、自旋组态及铁磁交换作用常数JAA、单轴各向异性常数K、偶极相互作用常数D和铁磁性原子掺杂量X对矫顽力Hc 的影响 .
短句来源
  “spin configurations”译为未确定词的双语例句
     SPIN CONFIGURATIONS OF THE TWO-DIMENSIONAL ISING MODEL IN MONTE CARLO SIMULATION
     二维伊辛模型自旋状态图样的蒙特卡罗模拟
短句来源
     3 The spin reorientation of magnetic thin film on a simple cubic lattice is simulated by employing Monte Carlo method. The influence of the magnetic anisotropy and the long-range dipolar interaction on the spin configurations of the system is also studied in detail.
     3.利用Monte Carlo方法模拟了简单立方结构磁性薄膜的自旋重取向行为,重点研究了磁各向异性和偶极相互作用对系统自旋取向的影响。
短句来源
     In order to characterize the circulating current phases, various operators in the second quantization form are introduced and their correlation functions of different spin configurations are numerically computed in our simulations.
     为了解析地表示环形电流相,针对电流的不同流动形式,我们定义了相应的二次量子化形式的算符及其关联函数。 在具体模拟中,我们对所有可能自旋组合的关联函数进行了测量。
短句来源
     The stability of the corresponding spin configurations is also examined.
     最后还讨论了所得到的自旋位形的稳定性。
短句来源
     In this work a phenomenological method is developed for the determination of spin configurations of magnetic crystals with a magnetic unit cell un-identical with its chemical unit cell.
     本文发展了一个讨论磁原胞与化学原胞不一致的磁性晶体的自旋位形的宏观方法。
短句来源
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  相似匹配句对
     The stability of the corresponding spin configurations is also examined.
     最后还讨论了所得到的自旋位形的稳定性。
短句来源
     The Power of Spin
     旋转的力量
短句来源
     ON THE ELECTRONIC SPIN
     关于电子自旋两则
短句来源
     SPIN CONFIGURATIONS OF THE TWO-DIMENSIONAL ISING MODEL IN MONTE CARLO SIMULATION
     二维伊辛模型自旋状态图样的蒙特卡罗模拟
短句来源
     Dissections and Configurations of Polygons
     多边形的部分与构形
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  spin configurations
A sufficient condition for the absence of invariant subspaces of the space of states with fixed value of thez projection of the total spin that differ in the sets of possible spin configurations is found.
      
Spin configurations in systems of substituted ferrospinels
      
For both of them we compute in the thermodynamic limit the overlap distribution ∑Ni=1σiσ'i/N∈[-1,1] of two spin configurations σ, σ' under the product of two Gibbs measures, which are taken at temperatures T,T' respectively.
      
For none of the other 11 block-spin configurations that we have considered is there any indication of a phase transition in the constrained system of original spins.
      
At the point (H=0,h=0) spin configurations corresponding to different positions of the interface are degenerate.
      
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The Lyons-Kaplan method is applied to the discussion of the change of spin configuration of a Bravias lattice in the presence of external magnetic field or magnetic anisotropy. It is shown that the antiferromagnetic structure transforms into ferromagnetic ones above a certain critical field and the formula for this critical field is derived. The stability of the corresponding spin configurations is also examined.

本文用Lyons-Kaplan的方法,讨论了具有一种磁性离子组成的布拉维点阵的自旋位形在外磁场作用下的变化及磁晶各向异性时它的影响。存在有一个反铁磁-铁磁性结构转变的临界磁场,外磁场大于临界磁场时一切反铁磁结构都消失。磁场(小于临界磁场)和各向异性都使自旋位形的简并部分消失。最后还讨论了所得到的自旋位形的稳定性。

In this work a phenomenological method is developed for the determination of spin configurations of magnetic crystals with a magnetic unit cell un-identical with its chemical unit cell. A finite group, formed of those elements of the space group which are distributed within a magnetic unit cell, is introduced. The expansion of the thermo-dynamic potential in terms of sublattice spin densities is constructed according to the principle that it should be invariant when symmetry operations of the above...

In this work a phenomenological method is developed for the determination of spin configurations of magnetic crystals with a magnetic unit cell un-identical with its chemical unit cell. A finite group, formed of those elements of the space group which are distributed within a magnetic unit cell, is introduced. The expansion of the thermo-dynamic potential in terms of sublattice spin densities is constructed according to the principle that it should be invariant when symmetry operations of the above mentioned group are applied on sublattice spin densities separately. Spin configurations of magnetic crystals are then determined from the minimum condition of thermodynamic potential.

本文发展了一个讨论磁原胞与化学原胞不一致的磁性晶体的自旋位形的宏观方法。引进一个有限羣,其元素乃是分布于一个磁原胞内的空间羣的元素。该羣的对称元素作用于次晶格的自旋密度上,使热力势保持不变。利用这原理可以建立热力势按次晶格自旋密度的展式。由热力势取极小条件决定磁性晶体的自旋位形。 应用这个方法具体地讨论了四类磁性晶体的自旋位形,对每一类情况得到了与中子衍射实验一致的结果。利用本方法在某些情况下,也可以得到螺旋形的自旋位形。

Fe-Y zeolite catalysts were prepared by excharging Na-Y and H-Y zeolites with ferrous ions or ferric ions. Ferrous ions can be gradually oxidized into ferric ions in the air. In order to examine the surface states and catalytic properties of these catalysts, the spectra of samples before and after reaction, dehydration, adsorption of reactants and water gas shift reaction at different temperatures were observed by means of Mossbauer spectroscopy. Preliminary theoretical calculations were made to ascertain the...

Fe-Y zeolite catalysts were prepared by excharging Na-Y and H-Y zeolites with ferrous ions or ferric ions. Ferrous ions can be gradually oxidized into ferric ions in the air. In order to examine the surface states and catalytic properties of these catalysts, the spectra of samples before and after reaction, dehydration, adsorption of reactants and water gas shift reaction at different temperatures were observed by means of Mossbauer spectroscopy. Preliminary theoretical calculations were made to ascertain the possible sites of the ferric ion in Y-zeolites. It was showed that both Fe3+ and Fe2+ had more than two different local environments. At room temperature, the preferential sites occupied by Fe3+ are S I' and SII', and by Fe2+ the S I 5 but at high temperature, iron ions are possibly located in SII and other sites of the supercage. During dehydration, part of the Fe3+ Is reduced into Fe2+ and a new species of high spin configuration with valence between Fe3+ and Fe2+ appears. Its possible model is Fe3+-O-Fe2+ and there is electron excharge between Fe3+ and Fe2+.Under real reaction conditions, the spectra reveal that there exists a similar doublet, its area is in relation to the activity for water-gas shift reaction. The Fe-Y catalysts can be more easily reduced after the adsorption of H2O and OH-groups.

采用Mossbauer谱学方法对Fe-Y沸石催化剂活性组成的价态、中间络合物的形成条件和水煤气变换反应进行了测试,并对Fe~+离子在Y沸石中的可能位置进行了初步理论计算。结果表明:Y沸石中的Fe~(3+)和Fe~(2+)离子均有两种以上不同的铁环境;抽空脱水时,部分Fe~(3+)被还原成Fe~(2+)并出现价态介于Fe~(3+)与Fe~(2+)之间的中间络合物,其可能模型是Fe~(3+)—O—Fe~(2+),桥连的两个铁离子之间电子云分布平均;实际反应条件下,也有类似表征过渡中间络合物的新物类出现;吸附和实际反应谱的分析指出:在有水和OH-基团存在下,CO吸附很容易使Fe~(3+)还原。

 
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