【摘 要】
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We employ stochastic series expansion method of quantum Monte Carlo simulation to investigate the spin configurations of magnetic lattices in graphene,induc
【机 构】
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InstituteforQuantumInformationandSpintronics,SchoolofScience,ChongqingUniversityofPostsandTelecommun
【出 处】
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第十九届全国凝聚态理论与统计物理学术会议
论文部分内容阅读
We employ stochastic series expansion method of quantum Monte Carlo simulation to investigate the spin configurations of magnetic lattices in graphene,induced by Ruderman-Kittle-Kasuya-Yosida (RKKY) interaction at finite temperature[1,2].In this regime,the susceptibility,spin stiffness,and other magnetic properties of the two-dimensional magnetic lattices can be determined with nearest-neighbor coupling (J1) and next-nearest-neighbor coupling (J2) to arbitrary order.We show that the magnetic properties and the spin configurations can be electrically controlled by gate voltage via RKKY mechanism,which is similar to our previous proposal[3],and there is some novel features in susceptibility when the third-nearest-neighbor coupling (J3) is taken into account[4].
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