论文标题
Q = 0量子Kagome Heisenberg AntiferRomagnet中的订单
Q = 0 order in quantum kagome Heisenberg antiferromagnet
论文作者
论文摘要
我们研究了使用Schwinger Boson平均场理论以及平面成分以及平面外部成分的Schwinger Boson平均场理论研究了最近的邻居海森堡模型。由Vesigniete的实验结果激励，即基态处于Q = 0的远距顺序状态，我们首先研究了模型的经典基态，并考虑了平均场Ansatz，该平均场ansatz在较大的S极限中模拟了经典的基态。我们已经获得了该模型的基态相图，并计算出不同阶段的特性。我们还使用精确的对角线化到系统尺寸n = 30进行了数值研究。我们已经比较了这两种方法所获得的结果。我们的结果与Vesigniete的实验结果一致。
We have studied the nearest neighbor Heisenberg model with added Dzyaloshinskii-Moriya interaction using Schwinger boson mean field theory considering in-plane component as well as out-of-plane component. Motivated by experimental result of Vesigniete that the ground state is in Q = 0 long range order state, we first looked at the classical ground state of the model and consider the mean field ansatz which mimics the classical ground state in the large S limit. We have obtained the ground state phase diagram of this model and calculated properties of different phases. We have also studied the above model numerically using exact diagonalization up to a system size N = 30. We have compared the obtained results from these two approaches. Our results are in agreement with the experimental result of the Vesigniete.
