论文标题
锯齿链晶格上的Quantum Heisenberg模型：旋转不变的绿色功能方法
Quantum Heisenberg model on a sawtooth-chain lattice: Rotation-invariant Green's function method
论文作者
论文摘要
我们将旋转不变的绿色功能方法（RGM）应用于一维锯齿状晶格上的旋转$ s = 1/2 $ Heisenberg模型，该锯齿状晶格在单位单元格中具有两个非务位位点。我们通过与精确的二进制化和有限的 - 朗佐斯计算进行比较，检查RGM预测是否可观察到的数量。我们讨论了该模型的热力学和动态性能与矿物Atacamite Cu $ _2 $ cl（OH）$ _ 3 $相互补充RGM结果，从而通过其他方法的结果补充了该模型。
We apply the rotation-invariant Green's function method (RGM) to study the spin $S=1/2$ Heisenberg model on a one-dimensional sawtooth lattice, which has two nonequivalent sites in the unit cell. We check the RGM predictions for observable quantities by comparison with the exact-diagonalization and finite-temperature-Lanczos calculations. We discuss the thermodynamic and dynamic properties of this model in relation to the mineral atacamite Cu$_2$Cl(OH)$_3$ complementing the RGM outcomes by results of other approaches.
