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spin glass
相关语句
  自旋玻璃
     MICROWAVE MAGNETIC RESONANCE IN REENTRANT SPIN GLASS SPINEL Co_xZn_(1-x)(Fe_yCr_1-y)_2O_4
     重入自旋玻璃尖晶石系统Co_xZn_(1-x)(Fe_yCr_(1-y))_2O_4中的微波磁共振
短句来源
     S=1/2 Ising Spin Glass With Random Field
     S=1/2无规场Ising自旋玻璃
短句来源
     Reentering spin glass behavior and charge ordering in phase separation Nd_(0·5)Ca_(0·5)MnO_3 system
     相分离Nd_(0·5)Ca_(0·5)MnO_3体系的再入型自旋玻璃行为和电荷有序
短句来源
     MAGNETIC PROPERTIES OF THE SPIN GLASS LaFe_yNi_(5-y)
     自旋玻璃LaFe_yNi_(5-y)的磁性研究
短句来源
     When A 2=0 the system has Weiss ferromagnetism,when A 1=0 the system has Neel anti ferromagnetism,when A 1=|A 2| system has spin glass magnetism,and when A 1>|A 2| there is coexistence of ferromagnetism and spin glass in the the system,when A 1<|A 2| there is coexistence of antiferromagnetism and spin glass in the the system.
     A2 =0的体系具有Weiss铁磁性 ,|A2 |A1=1的体系表现自旋玻璃磁性 ,1>|A2 |A1>0的体系同时具有铁磁性和自旋玻璃磁性 ,1>A1 |A2 |>0的体系同时具有反铁磁性和自旋玻璃磁性 .
短句来源
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  自旋玻璃态
     A Nano-crystalline Room-temperature Molecular Magnet K_(0.45)V_(1.12)~ⅡV_(0.19)~Ⅲ[Cr(CN)_6](SO4)_(0.13)·4.34H_2O-Coexistence of Long Range Ferrimagnetic Ordering and Spin Glass Behavior
     纳米晶室温分子磁体K_(0.45)V_(1.12)~ⅡV_(0.19)~Ⅲ[Cr(CN)_6](SO_4)_(0.13)·4.34H_2O——亚铁磁长程有序与自旋玻璃态共存
短句来源
     We have also studied the spin glass (SG) behavior of La_(0.8)Ca_(0.2)Mn_(1-x)Cr_xO_3 in definite conditions, which has been investigated from different aspects and differentmethods(ZFC-FC, ac susceptibility).
     通过测量La_(0.8)Ca_(0.2)Mn_(1-x)Cr_xO_3的热磁曲线(ZFC—FC)、交流磁化率曲线研究了体系中的自旋玻璃态特征。
短句来源
     When T is around 41K, it forms a spin glass phase.
     在低温下(T~41K),形成自旋玻璃态(Spin Glass,SG).
短句来源
     The static Mahan-Hnsch quantum transport equation in applied magnetic fieldsis extended to spin glass systems through introducing physical self-energies of elasticand inelastic scattering.
     通过引入电子的弹性散射和非弹性散射的自能和相应的物理格林函数,将磁场中的Mahan-Hnsch量子输运方程推广到自旋玻璃系统中,在电子的近弹性散射近似下,求解了s-d交换相互作用导致的自旋玻璃态霍耳电导;
短句来源
     Meanwhile,spin glass,charge ordering and metal-insulator transition were suppressed by Fe 3+ addition.
     同时,LaSr2Mn2-xFexO7的自旋玻璃态、电荷有序和金属-绝缘体转变温度都由于Fe3+取代Mn离子而受到抑制。
短句来源
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  “spin glass”译为未确定词的双语例句
     Specific Heat of the Two—Dimensional RKKY Spin Glass with(n_m~(1/2)1>>1)
     二维RKKY自旋玻璃的比热(n_m~(1/2)1<<1)
短句来源
     REENTRANT BEHAVIOUR OF SPIN GLASS AND THE MAGNETIC PHASE DIAGRAM OF A SPINEL SYSTEM Co_xZn_1-x(Fe_y-Cr_1-v)_2O_4
     自旋玻璃的重入行为及Co_xZn(1-x)(Fe_yCr(1-y))_2O_4尖晶石系统的磁相图
短句来源
     Crystal Field Effects in S=1 Ising Spin Glass
     S=1 Ising自旋玻璃的晶场效应
短句来源
     PERCOLATIONAL MODEL OF THE TWO—DIMENSIONAL SPIN GLASS WITH N_m~(1/2)L《1
     二维自旋玻璃的渗流模型(n_m~(1/2)1《1)
短句来源
     MAGNETIC SUSCEPTIBILITY OF THE TWO-DIMENSIONAL RKKY SPIN GLASS WITH nm~(1/2)l<<1
     二维RKKY自旋玻璃的磁化率(n_m~(1/2)I<<1)
短句来源
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  spin glass
For finite-connectivity spin glass systems, we use this free energy Boltzmann distribution to formulate the cavity approach of Mézard and Parisi [Eur.
      
Thus, a SmBaMn2O6 compound with a disordered arrangement of Sm and Ba ions is a spin glass with the freezing temperature of magnetic moments Tf = 40 K, whereas in the state with an ordered Sm and Ba arrangement, the Curie temperature TC, is ~ 280 K.
      
It is concluded from magnetic studies that lead-containing manganite is an antiferromagnet with TN = 120 K, whereas Bi0.5Ba0.5MnO3 is a spin glass with spin-freezing temperature Tf = 38 K.
      
The experimental results and analysis of exchange interactions suggest that in ferrites with high Cr3+ content, magnetic transitions to either a frustrated magnetic structure or a clustered spin glass can take place.
      
Introduction of the oxygen vacancies changes the magnetic interaction sign from positive to negative, thereby leading to a spin glass state in strongly reduced compounds.
      
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In this paper the macroscopic anisotropy in RKKY + DM spin glasses is investigated. The configuration of intermediate equilibrium is observed and the anisotropy constants are obtained by calculating the energy increment of the system due to uniform rotation. It is shown that the anisotropy in RKKY + DM spin glass is unidirectional and the constants are independent of the axes while proportional to the concentration of impurities. When an external magnetic field is applied, the distribution of rotation...

In this paper the macroscopic anisotropy in RKKY + DM spin glasses is investigated. The configuration of intermediate equilibrium is observed and the anisotropy constants are obtained by calculating the energy increment of the system due to uniform rotation. It is shown that the anisotropy in RKKY + DM spin glass is unidirectional and the constants are independent of the axes while proportional to the concentration of impurities. When an external magnetic field is applied, the distribution of rotation angles and of axes of spin clusters can be found, indicating that the system is undergoing a quasi-rigid rotation. Theoretical findings prove to be in agreement with recent tests on torque.

本文研究RKKY+DM自旋玻璃的宏观各向异性.首先获得系统的亚稳组态,然后计算由于均匀转动所引起的系统能量的增量,获得各向异性常数.发现系统为单方向各向异性,各向异性常数与轴无关,与杂质浓度成正比.在加了外场后,获得系统自旋集团的旋转轴和旋转角的分布,表明系统作准刚性转动.理论计算结果与最近的转矩实验一致.

Low-field magnetic susceptibility of the diluted magnetic semiconductors Zn_(1-x)Mn_(x~-) Se was measured between 4.2 and 30 K for the Mn concentration range 0.1≤x≤0.50 using SQUID magnetometer. When x≥0.30, the system shows a spin-glass transition in the above temperature range, as evidenced by a somewhat rounded cusp in the susceptibility. The transition temperature of spin-glass is as follow: x=0.30, T_f=10.5 K; x=0.40, T(?)=16.0 K; x=0.50, T_f=19.5 K. The phase diagrams for the boundary...

Low-field magnetic susceptibility of the diluted magnetic semiconductors Zn_(1-x)Mn_(x~-) Se was measured between 4.2 and 30 K for the Mn concentration range 0.1≤x≤0.50 using SQUID magnetometer. When x≥0.30, the system shows a spin-glass transition in the above temperature range, as evidenced by a somewhat rounded cusp in the susceptibility. The transition temperature of spin-glass is as follow: x=0.30, T_f=10.5 K; x=0.40, T(?)=16.0 K; x=0.50, T_f=19.5 K. The phase diagrams for the boundary of the paramagnetic and the spin-glass phases are obtained for this system. The difference of spin-glass transition temperature between Zn_(1-x)Mn_x Se and Cd_(1-x)MnxSe is discussed. It is found that for any given Mn concentration x the spin-glass transition temperature T_f, of Zn_(1-x)MnxSe is higher than that of Cd_(1-x)Mn_xSe.

用超导量子干涉器(SQUID)磁强计对稀释磁性半导体Zn_(1-x)Mn_xSe(0.1≤x≤0.50)的低温低场直流磁化率作了测量,测量温度从4.2K到30K,测量磁场为15Oe。当x≥0.30时,从磁化率-温度曲线的浑圆峰值,观察到了自旋玻璃的转变。自旋玻璃的转变温度T_f,对x=0.30,0.40,0.50,分别为10.5K,16K,19.5K。给出了顺磁相和自旋玻璃相的相图。比较了Zn_(1-x)Mn_xSe和Cd_(1-x)Mn_xSe的自旋玻璃转变温度,发现对同样的Mn离子浓度,Zn_(1-x)Mn_xSe的T_f高于Cd_(1-x)Mn_xSe的T_f,用交换作用的理论作了讨论。

The properties of the spin glass systems in equilibrium state were studied bymeans of Monte-Carlo simulation and Metropolis sampling.The temperature depen-dence of the susceptibility and specific heat was computed for the spin glass sys-tems where the host of hcp lattice is non-magnetic,the number of lattice pointsN=9×9×9×2,and the concentration of magnetic impurity x=0.5,1,2,3,5,8,10 and 15 at.-%.Using Heisenberg model,it was assumed that NX magneticatoms are located at the lattice points randomly...

The properties of the spin glass systems in equilibrium state were studied bymeans of Monte-Carlo simulation and Metropolis sampling.The temperature depen-dence of the susceptibility and specific heat was computed for the spin glass sys-tems where the host of hcp lattice is non-magnetic,the number of lattice pointsN=9×9×9×2,and the concentration of magnetic impurity x=0.5,1,2,3,5,8,10 and 15 at.-%.Using Heisenberg model,it was assumed that NX magneticatoms are located at the lattice points randomly and homogeneously.It was alsoassumed that the only interaction between spins is the RKKY long-range oscillatoryexchange with an interaction length R_0=3a.The deviated method was used incalculation for a group of temperature each time in order to Save time.The calcu-lated curves of susceptibility and specific heat are consistent with the correspond-ing experiments fairly well.

本文使用Monte-Carlo方法,采用Metropolis抽样,研究自旋玻璃体系的平衡态特性.计算了具有六角密堆积点阵的非磁性母金属,格点数N=9×9×9×2,磁性杂质浓度x=0.5,1,2,3,5,8,10,15%的自旋玻璃体系的比热和磁化率随温度的变化.自旋系统采用Heisenberg模型,Nx个磁性原子随机均匀地分布在格点上,自旋之间只考虑RKKY长程交换作用,作用长度R_0=3α.计算采用纠偏方法,一次计算一组温度点,节省了计算量.计算得到的磁化率和比热曲线与实验符合较好.

 
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