【摘 要】
：
We study the transverse Ising spin model with multi-impurity under the exact solution.The influence mechanisms of the concentration,configuration,impurity-inducing-interaction are investigated through
【机 构】
：
Key Laboratory of Functional Materials and Devices for Special Environments of CAS,Xinjiang Technica
【出 处】
：
第八届国际分子模拟与信息技术应用学术会议
论文部分内容阅读
We study the transverse Ising spin model with multi-impurity under the exact solution.The influence mechanisms of the concentration,configuration,impurity-inducing-interaction are investigated through the deformation energy,long-range order and the specific heat.It reveals a way that the impurities have crucial effects on the magnetic order of the system,which can be used to scale the order–disorder transition.In particular,the change of the exchange coupling interaction or magnetic field can lead to the deviation of the phase point.Moreover,the impurity excitation cannot be neglected in thermodynamic properties even though the concentration is only a few percent.
其他文献
Infrared nonlinear optical(IR NLO)materials with excellent performances are particularly important in laser technology.However,to design and synthesize an efficient IR NLO material with a balance betw
A series of LiSr1-xPbxBO3(x = 0.138,0.285,0.320,0.379,0.417,0.5)crystals have been obtained by a high-temperature solution reaction with spontaneous nucleation technique,and the crystal structures wer
A new family of noncentrosymmetric isostructural compounds,Na2Hg3M2S8(M = Si,Ge,and Sn),was successfully synthesized.They crystallize in the tetragonal space group P4-c2 with Z = 2.Their major structu
The development of frequency-conversion technology in the infrared region is in urgent need of new excellent infrared nonlinear optical(IR NLO)materials.How to achieve a good balance between laser dam
In this research work,a potential semiorganic nonlinear optical candidate NH4B[D-(+)-C4H4O5)]2·H2O(NBC)has been studied by means of Density Functional Theory.The origin of second harmonic generation(S
The Pb(Ⅱ)cations have long been associated with lone-pairs which can help to enhance the optical anisotropic birefringence.In this paper,the contribution of lead cations to birefringence has been inve
A novel mechanism for the nonlinear optical(NLO)effects of vanadium borate crystals,Na3VO2B6O11(NVB),with distorted VO4 groups was investigated.A comprehensive analysis of the structure–property relat
Exploring the effect of microscopic units,which set up the perovsikte framework,is of importance for material design.In this study,a series of borate halides with inverse-perovskite structures [B6O10]
The impurity effects of the transverse Ising spin model with a magnetic impurity are investigated via the correlation function and entanglement on the basis of an exact solution.The non-analytical tra
Metal lone pairs plays an important role in determining the SHG enhancement and bandgap red shift.In this work,the electronic structures and optical properties of a class of the lead borates Pb2B5O9Cl