论文标题
旋转液体Kagome Lattices Srcr8ga4O19和Zncu3（OH）6Cl2中的幂律动力学
Power-law dynamics in the spin-liquid kagome lattices SrCr8Ga4O19 and ZnCu3(OH)6Cl2
论文作者
论文摘要
我们考虑通过SRCR8GA4O19和ZNCU3（OH）6Cl2 Spin-Liquid Systems测得的极化函数P^{exp} _z（t）。我们显示了p^{exp} _z（t）的功能形式，这意味着，在0.1 K的温度范围内，磁相关的光谱 - 函数f（ω）以1/|ω|^{1 -x {1 -x}（0 <x <1）在一个Microelectrectrectronvolt的能量范围内缩放。我们从拟合到可用的实验数据中得出涉及f（ω）的参数。 MilleectRonvolt能量范围中的非弹性中子散射数据探测F（ω）与更传统的行为一致。这些差异可能是由于多种自旋动力学机制，即与kagome层的固有性或与这些化合物中已证明的磁缺陷相关的，作用于不同能量。提出了新的MUSR测量结果，并提出了理论发展，以查明发挥作用的机制。
We consider the polarization function P^{exp}_Z(t) measured by the muon-spin relaxation (muSR) technique for the SrCr8Ga4O19 and ZnCu3(OH)6Cl2 spin-liquid systems. We show the functional form of P^{exp}_Z(t) to imply that, in the temperature range of order 0.1 K, the spectral-weight function F(ω) of the magnetic correlations scales with 1/|ω|^{1 -x} (0 < x < 1) in the energy range of one microelectronvolt, i.e. \hbar ω~ 1 μeV. We derive the parameters involved in F(ω) from fits to available experimental data. Inelastic neutron scattering data probing F(ω) in the millielectronvolt energy range are consistent with a more conventional behavior. These differences could be due to a variety of spin-dynamics mechanisms, i.e. intrinsic to the kagome layer or related to the magnetic defects that have been evidenced in these compounds, acting at different energies. New muSR measurements are proposed and theoretical developments are suggested to pinpoint the mechanisms at play.
