Phase diagram and doping-induced Kondo insulator-metal transition in two-dimensional periodic Anders

来源 :第十三届国际凝聚态理论与计算材料学会议(The 13th International Conference on Con | 被引量 : 0次 | 上传用户:sonicff8
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
We study the two-dimensional half-filled periodic Anderson model using determinant Quantum Monte Carlo (DQMC) method.A finite temperature phase diagram consists of metal,antiferromagnetism and Kondo insulator phase is obtained.When a Kondo hole is doped into AFM regime and Kondo insulator regime in the phase diagram, conduction electron occupancy number displays spatial oscillations and damping emanating from Kondo hole respectively.
其他文献
采用密度泛函理论方法研究了Au10团簇催化CO氧化反应的详细机理.对CO、O2、O、CO2四种主要吸附物及CO+O2、 CO2+O、CO+O和CO+O+O四种共吸附物的吸附行为进行计算,得到最佳活性吸附位.模拟反应分别按照Langmuir-Hinshelwood(LH)机理和Eley-Rideal(ER)机理进行,其中LH机理包括L1、L2两条路径,ER机理包括E1、E2两条路径.通过对各路径活化
The silver doped TiO2 sol is prepared through Sol-Gel method, Ti(OC4H9)4 and C2H6OH are materials, AgNO3 is the component for inducting silver ion.The inorganic film is formed on glass through dipping
Fe (NO3)3 and tetrabutyl titanate were used as Fe and Ti source to Fe-TiO2 powder by sol-gel method.After the calcination of the gels at various temperatures (200-750℃) in oxygen under different tempe
Titanium dioxide (TiO2) has attracted great attention as a promising metal oxide for applications in photocatalysts, water splitting for hydrogen production, and solar cells due to its excellent physi
We show that a weak hexagonal periodic potential can transform a two-dimensional electron gas with an even-denominator magnetic filling factor into an quantum anomalous hall insulator of composite fer
One-dimensional valence bond solid (VBS) states represent the simplest symmetry protected topological phases.We show that their ground state entanglement spectrum contains both topological and non-top
会议
Using nonequilibrium Greens functions in combination with the density functional theory, we investigate the electronic transport properties of two nanostructed devices based on graphitic carbon nitrid
会议
材料性质的模拟,依据玻恩-奥本海默近似,分电子结构与分子动力学两个层面的内容。在该报告中,我们就我们近年来在这两个层面所做的一些分子模拟工作,向大家做以介绍。在分子动力学层面,我们系统地发展了基于第一性原理电子结构计算的路径积分的分子动力学方法,并利用这个方法研究了核量子效应对金属与水的界面[1]、氢键系统的结构[2]、高压下固态氢的相图的影响等基本物理问题[3-5]。在电子结构层面,我们结合实验
We study theoretically the possible ground states of the undoped and doped Kitaev-Heisenberg model on a triangular lattice.At half-filling, a combination of exact diagonalization and the four-sublatti
会议
Sr2RuO4 is the first prime candidate for topological chiral p-wave superconductivity.However, there are several key unresolved issues hampering the microscopic description of the unconventional superc
会议