论文标题
部分可观测时空混沌系统的无模型预测
Possible zero sound in layered perovskites with ferromagnetic $s$-$d$ exchange interaction
论文作者
论文摘要
我们分析了在甲状腺素化氧化剂上的过渡金属离子中观察到零声音的条件。我们得出的结论是，仅对于$ s $ -D $相互作用的抗铁磁标志，零声音的传播才有可能。如果$ s $ - $ d $交易所积分$ j_ {sd} $具有抗铁磁符号，因为在分层层次的情况下，零声音是一种热激活的耗散模式，它仅在沿fermi contour的角度分辨光谱光谱（ARPES）数据中生成“热点”。我们预计，对于过渡金属钙壶，可以观察到零声音，其4 $ s $和3 $ d $的水平接近$ p $ - chalcogogogogogogenide。同时缺乏超导性，ARPES数据中热点的出现以及三个命名水平的接近性，代表了选择要研究的材料的重要提示。
We analyze the conditions for observation of zero sound in layered perovskites with transition metal ion on chalcogenide oxidizer. We conclude that propagation of zero sound is possible only for anti-ferromagnetic sign of the $s$-$d$ interaction. If the $s$-$d$ exchange integral $J_{sd}$ has antiferromagnetic sign, as it is perhaps in the case for layered cuprates, zero sound is a thermally activated dissipation mode,which generates only "hot spots" in the Angle Resolved Photoemission Spectroscopy (ARPES) data along the Fermi contour. We predict that zero sound will be observable for transition metal perovskites with 4$s$ and 3$d$ levels close to the $p$-level of the chalcogenide. The simultaneous lack of superconductivity, the appearance of hot spots in ARPES data, and the proximity of the three named levels, represents the significant hint for the choice of material to be investigated.
