【摘 要】
：
Recently,iridium oxides have been extensively studied both experimentally and theoretically because of their novel Jeff=1/2 states[1,2].Many exotic and emer
【机 构】
：
KeyLaboratoryofComputationalPhysicalSciences(MinistryofEducation),StateKeyLaboratoryofSurfacePhysics
【出 处】
：
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
Recently,iridium oxides have been extensively studied both experimentally and theoretically because of their novel Jeff=1/2 states[1,2].Many exotic and emerging phenomena are proposed to be realized in such iridium oxides,such as quantum spin Hall effect,Weyl semimetal,superconductivity and so on.Experimentally,it is found that the magnetic moments of Ir4+ ions in Ba2IrO4 are antiferromagnetically correlated and point along the[110]direction[3].It has been theoretically proposed that the basal-plane antiferromagnetism could be accounted for by including the additional interlayer magnetic interactions and the associated order-by-disorder quantum-mechanical effects[4]into the general bilinear pseudo-spin Hamiltonian.However,the interlayer magnetic interactions in Ba2IrO4 may be too weak to be relevant to the basal-plane antiferromagnetism.Therefore,it will be of great importance to reinvestigate the origin of the basal-plane antiferromagnetism.
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