助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   自旋极化度 的翻译结果: 查询用时:0.018秒
图标索引 在分类学科中查询
所有学科
物理学
无线电电子学
更多类别查询

图标索引 历史查询
 

自旋极化度
相关语句
  spin polarization
     By numerical calculations for the realistic InAs material, it is show that this kind of systems possesses a considerable spin polarization effect, and its degree can reach 80% at resonance.
     通过对真实InAs材料系统的计算,发现这种系统具有很强的电子自旋极化效应,其自旋极化度在共振时超过80%。
短句来源
     Large spin polarization can be produced in 129 Xe nuclei by laser optical pumping and spin exchange. The amplification factors of the nuclear spin polarization of laser-polarized 129 Xe are in the range of 10 4 10 5 times the Boltzmann polarization of the 129 Xe in the same magnetic field. The nuclear spin polarization can greatly enhance the NMR sensitivity of 129 Xe,enabling new investigations and applications of laser-polarized 129 Xe in the physical,biological,medical and other sciences.
     激光光抽运自旋交换方法能够极大地增强129Xe核自旋极化,其获得的非平衡极化度远远高于在相同磁场里玻尔兹曼平衡值.增强的核自旋极化度,可以使129Xe核磁共振的灵敏度提高104—105倍,导致激光增强极化的129Xe在自然科学、生物和医学等方面许多新的研究和应用.文章介绍了激光极化气体129Xe的生物磁共振成像研究的进展
短句来源
     Large spin polarization can be produced in129Xe and 3He nuclei by laser optical pumping and spin exchange. Cylindrical glass cell filled with a mixture of natural Xe , N2 and Rb vapor and pressurized with approximately 1 MPa of helium. The cell heated to 318-352K and placed in 30 Gauss field.
     为了获得高极化度的惰性气体,采用激光泵浦的方法可以使没有放射性的惰性气体同位素(如129Xe、 3He)的自旋极化度得到极大增强.圆柱形的玻璃泵浦室内充满天然氙气、氮气、铷蒸气和氦气的混合气体,压 力维持在1MPa左右.泵浦室放置在30 Gs的均匀磁场内,并被加热到318-352 K.
短句来源
     Large spin polarization can be produced in129Xe and 3He nuclei by laser optical pumping
     为了获得高极化度的惰性气体,采用激光泵浦的方法可以使没有放射性的惰性气体同位素(如129Xe、3He)的自旋极化度得到极大增强. 圆柱形的玻璃泵浦室内充满天然氚气、氮气、铷蒸气和氦气的混合气体,压力维持在1 MPa 左右.
     Noble gas is pumped with 794.7 nm circularly laser. The spin polarization of laser -polarized 129Xe and 3He are in the range of 104-105 times the Boltzmann polarization of the 129Xe and 3He in the same magnetic field.
     中心波长为794.7 nm的圆偏振 激光均匀照射泵浦室对碱金属及惰性气体进行泵浦极化.其获得的非平衡极化度远远高于在相同磁场里玻尔兹曼 平衡值.增强的核自旋极化度,可以使惰性气体同位素核磁共振的灵敏度提高104~105倍.
短句来源
更多       
  “自旋极化度”译为未确定词的双语例句
     The material which has the structure “FM/ML/FM” shows the low field MR(LFMR),where FM and ML represents the ferromagnetic metal and middle layer,respectively.
     对于基本结构为“铁磁金属-中间层-铁磁金属”的材料来说,在低场下均表现出较大的磁电阻效应,而且铁磁金属的自旋极化度越高,磁电阻就越大。
短句来源
     However, nowadays, the key to semiconductor spintronics is that the efficiency of spin-polarized electrons injected into semiconductors is very low, one needs to find some magnetic materials with high spin-polarization.
     但目前的关键问题是自旋极化电子注入到半导体材料中的效率很低,这就需要寻找高自旋极化度的磁性材料。
短句来源
     Moreover, electron-spin polarization are relevant to the structure parameters of the system, so we can control spin-polarized electronic behavior by means of adjusting ferromagnetic stripes.
     而且,电子的自旋极化度与系统的结构参数密切相关,因此通过调整磁条可以调控系统中自旋极化电子的行为。
短句来源
  相似匹配句对
     The Quest for the Spin Transistor
     探索自旋晶体管
短句来源
     Developing Spintronics
     发展中的自旋电子学
短句来源
     The least polarization filtering
     最小极化度滤波
短句来源
     A Study on the Polarizability in Ferroelectric Glass-ceramics
     铁电微晶玻璃的可极化度问题
短句来源
     Moreover, electron-spin polarization are relevant to the structure parameters of the system, so we can control spin-polarized electronic behavior by means of adjusting ferromagnetic stripes.
     而且,电子的自旋极化度与系统的结构参数密切相关,因此通过调整磁条可以调控系统中自旋极化电子的行为。
短句来源
查询“自旋极化度”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  spin polarization
Influence of local spin polarization to the Kondo effect
      
We use the spin non-degenerate single impurity Anderson model to investigate the influence of the local spin polarization to the Kondo effect.
      
The local spin polarization generates the instability of the singlet ground state of the S = 1/2 s-d exchange model.
      
The effect of spin polarization on the parameters of hyperfine and ligand hyperfine couplings was considered.
      
The role of spin polarization is elucidated and the effect of charge transfer states is taken into account.
      
更多          


Large spin polarization can be produced in 129 Xe nuclei by laser optical pumping and spin exchange.The amplification factors of the nuclear spin polarization of laser-polarized 129 Xe are in the range of 10 4 10 5 times the Boltzmann polarization of the 129 Xe in the same magnetic field.The nuclear spin polarization can greatly enhance the NMR sensitivity of 129 Xe,enabling new investigations and applications of laser-polarized 129 Xe in the physical,biological,medical...

Large spin polarization can be produced in 129 Xe nuclei by laser optical pumping and spin exchange.The amplification factors of the nuclear spin polarization of laser-polarized 129 Xe are in the range of 10 4 10 5 times the Boltzmann polarization of the 129 Xe in the same magnetic field.The nuclear spin polarization can greatly enhance the NMR sensitivity of 129 Xe,enabling new investigations and applications of laser-polarized 129 Xe in the physical,biological,medical and other sciences. We review the progress in the study of nuclear magnetic imaging using laser-polarized 129 Xe gases.

激光光抽运自旋交换方法能够极大地增强129Xe核自旋极化,其获得的非平衡极化度远远高于在相同磁场里玻尔兹曼平衡值.增强的核自旋极化度,可以使129Xe核磁共振的灵敏度提高104—105倍,导致激光增强极化的129Xe在自然科学、生物和医学等方面许多新的研究和应用.文章介绍了激光极化气体129Xe的生物磁共振成像研究的进展

Within the spin-dependent Brueckner-Hatree-Fock framework, the equation of state of the spin-polarized neutron matter has been investigated by adopting the realistic nucleon-nucleon interaction AV18 supplemented with a microscopic three-body force. The related physical quantities such as spin-symmetry energy, magnetic susceptibility and the Landau parameter G0 in spin channel, have been extracted. The three-body force effects have been studied and discussed with a special attention. It is shown that in the whole...

Within the spin-dependent Brueckner-Hatree-Fock framework, the equation of state of the spin-polarized neutron matter has been investigated by adopting the realistic nucleon-nucleon interaction AV18 supplemented with a microscopic three-body force. The related physical quantities such as spin-symmetry energy, magnetic susceptibility and the Landau parameter G0 in spin channel, have been extracted. The three-body force effects have been studied and discussed with a special attention. It is shown that in the whole range of spin-polarization, the energy per particle of spin-polarized neutron matter fulfills a quadratic relation versus the spin-polarization parameter δ= (p-p )/p . The predicted spin-symmetry energy is positive in the density region up to ρ = 0.8fm-3 and increase monotonically as increasing density so that no any evidence is found for a spontaneous transition to a ferromagnetic state in neutron matter. The three-body force effect is to strongly increase the spin-symmetry energy and reduce the magnetic susceptibility at high densities, as a consequence , to make neutron matter become more stable against spin fluctuation. The obtained Landau parameter G0 and its density dependence may serve as a constraint on the spin-spin parts of the phenomenological Skyrme and Skyrme-like interactions .

在Brueckner-Hartree-Fock理论框架内,研究了自旋极化的中子物质的状态方程及其自旋依赖性,计算了自旋非对称能及相关的物理量如磁化率和朗道参数G_0,并着重讨论了三体核力的影响,结果表明:在整个自旋极化度范围内,中子物质的每核子能量随自旋极化度的变化都满足二次方规律,自旋对称能随密度单调增加,这意味着中子物质中不会发生由自旋非极化态向自旋极化态的自发相变,三体核力的主要效应是使中子物质磁化率随密度减小的速度加快,从而使中子物质的磁化相变更加困难。

Within the spin-dependent Brueckner-Hartree-Fock framework, the equation of state of the spin-polarized nuclear matter has been investigated by adopting the realistic nucleon-nucleon interaction AV 18 supplemented with a microscopic three-body force. The related physical quantities such as the Landau parameters G 0 in spin channel and G′ 0 in spin-isospin channel, have been calculated. The three-body force effects have been studied and stressed with a special attention. It is shown that in the Brueckner-Hartree-Fock...

Within the spin-dependent Brueckner-Hartree-Fock framework, the equation of state of the spin-polarized nuclear matter has been investigated by adopting the realistic nucleon-nucleon interaction AV 18 supplemented with a microscopic three-body force. The related physical quantities such as the Landau parameters G 0 in spin channel and G′ 0 in spin-isospin channel, have been calculated. The three-body force effects have been studied and stressed with a special attention. It is shown that in the Brueckner-Hartree-Fock framework the predicted energy per particle of spin-polarized nuclear matter versus the neutron and proton spin-polarization parameters fulfills a quadratic law in the whole range of spin-polarization. At the empirical saturation density, the calculated Landau parameter G′ 0 is 1.22 and 1.28 respectively for the two-cases with and without including the three-body force, both are in agreement with its experimental value. Both the Landau parameters G 0 and G′ 0 are positive in the density region up to ρ=0.5fm -3 and increase monotonically as increasing density so that no any evidence is found for a spontaneous transition to a ferromagnetic state in nuclear matter. The three-body force effect is to strongly increase the Landau parameters G 0 and G′ 0 at high densities, making the nuclear matter at high densities more stable against spin and spin-isospin fluctuations. The obtained Landau parameters G 0 and G′ 0 together with their density dependences may serve as constraints on the spin-spin parts and spin-isospin dependent parts of the phenomenological Skyrme and Skyrme-like interactions.

在Brueckner Hartree Fock理论框架内 ,研究了自旋极化核物质的状态方程及其自旋依赖性 ,计算了相关的物理量如朗道参数G0 和G′0 ,并着重讨论了三体核力的影响 .结果表明 :在整个自旋极化度范围内 ,自旋极化核物质的每核子能量随中子和质子自旋极化度的变化相当精确地满足二次方规律 ,而且在Brueckner Hartree Fock理论框架内 ,自旋非极化核物质的能量总是比相应的自旋极化核物质的能量低 ,这表明核物质中不会发生由自旋非极化态向自旋极化态的自发相变 .当密度较低时 ,三体核力对核物质状态方程的自旋依赖性的影响不明显 ;随着密度的增大 ,三体核力效应增强 ,而且三体核力使朗道参数G0 和G′0 增大 ,从而使核物质对于自旋涨落的稳定性增强

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关自旋极化度的内容
在知识搜索中查有关自旋极化度的内容
在数字搜索中查有关自旋极化度的内容
在概念知识元中查有关自旋极化度的内容
在学术趋势中查有关自旋极化度的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社