论文标题
沮丧的kagome抗fiferromagnet everievite在néel温度以上的磁性terahertz共鸣
Magnetic terahertz resonances above the Néel temperature in the frustrated kagome antiferromagnet averievite
论文作者
论文摘要
时间域的磁磁 - THz光谱用于研究沮丧的磁铁everievite cu $ _ {5-x} $ zn $ _x $ _x $ v $ _2 $ _2 $ o $ _ {10} $（CSCL）。当冷却在短距离磁相关开始时，在未取代的样品（$ x = 0 $）中观察到明显的THZ共振。外部磁效应的影响证实了这些共振的磁起源。随着挫败感的影响占主导地位，增加Zn替代会抑制共振，反映了$ x> 0.25 $化合物的非磁相。 THZ光谱的温度演化与电子自旋谐振光谱相互补。这种比较允许直接探测磁性阶段的磁顺序，挫败感和结构特性的不同贡献。我们的结果说明了沮丧磁铁的THz光谱中磁相互作用的影响。
Time-domain magneto-THz spectroscopy is utilized to study the frustrated magnet averievite Cu$_{5-x}$Zn$_x$V$_2$O$_{10}$(CsCl). Pronounced THz resonances are observed in unsubstituted samples ($x=0$) when cooling below the onset of short-range magnetic correlations. The influence of external magnetic effects confirms the magnetic origin of these resonances. Increasing Zn substitution suppresses the resonances, as frustration effects dominate, reflecting the non-magnetic phases for $x> 0.25$ compounds. The temperature evolution of the THz spectra is complemented with electron spin resonance spectroscopy. This comparison allows a direct probe of the different contributions from magnetic order, frustration, and structural properties in the phase diagram of averievite. Our results illustrate the effect of magnetic interactions in THz spectra of frustrated magnets.
