Inspired by the research interest on the realization of flatbands and magnetization plateaus in kagome lattices, herein we study the electronic properties and exchange magnetic interactions in quasi-one-dimensional boron triangular kagome lattice (1D-BTKL) models by using the real-space Green’s function approach in a tight-binding model. First, we study the electronic properties of 1D-BTKLs in the presence of staggered sublattice potential, and then, by analyzing the Ruderman–Kittel–Kasuya–Yoshida (RKKY) interaction in these lattice structures, the magnetic ground states of 1D-BTKLs in the presence of two magnetic adatoms are evaluated. It is found that the 1D channels of BTKL show different electronic and magnetic behaviors due to different values of the hopping integrals and spin–orbit couplings. Two important salient features of 1D-BTKLs are the presence of flatbands in their band structures as well as the emergence of the RKKY plateau vs the Fermi energy. To the best of our knowledge, it is the first time that the RKKY plateau is systematically reported and as we will see this idea has been advocated forcefully. It was shown that both the width and location of the magnetization plateaus could be controlled through variation of the staggered potential and the Fermi energy as well as the spatial configuration of the magnetic impurities, enabling a variety of electromagnetic devices to be produced. The other fascinating feature of the present study is the magnetic susceptibility discontinuity, named as magnetization jump, which accompanies with the discontinuity in the magnetization curves. We believe that our results provide significant insights into designing further experiments to search for the realization of the flatbands and magnetization plateau phases in spintronics and pseudospin electronic devices based on TKLs.

中文翻译：

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准一维三角 kagome 晶格模型中平带、RKKY 平台和磁化跃变的观察

受在 kagome 晶格中实现平带和磁化平台的研究兴趣的启发，我们在此使用实空间格林的准一维硼三角 kagome 晶格 (1D-BTKL) 模型研究电子特性和交换磁相互作用紧束缚模型中的函数方法。首先，我们研究了存在交错亚晶格势的 1D-BTKLs 的电子特性，然后，通过分析这些晶格结构中的 Ruderman-Kittel-Kasuya-Yoshida (RKKY) 相互作用，1D-BTKLs 的磁基态在评估两个磁性吸附原子的存在。发现由于跳跃积分和自旋轨道耦合的不同值，BTKL 的一维通道表现出不同的电子和磁行为。1D-BTKL 的两个重要显着特征是其能带结构中平带的存在以及 RKKY 平台与费米能量的出现。据我们所知，这是第一次系统地报道 RKKY 高原，正如我们将看到的那样，这个想法得到了有力的倡导。结果表明，磁化平台的宽度和位置都可以通过交错电位和费米能量的变化以及磁性杂质的空间配置来控制，从而能够生产各种电磁装置。本研究的另一个引人入胜的特征是磁化率不连续性，称为磁化跃变，伴随着磁化曲线的不连续性。