Possible zero sound in layered perovskites with ferromagnetic $s$-$d$ exchange interaction

Abstract

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.

arXiv comment7 pages, 4 figures, 30 references

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Cited by in corpus (2)

• Hot spots along the Fermi contour of high-$T_c$ cuprates analyzed by $s$-$d$ exchange interaction
• Kondo $s$-$d$ exchange in the CuO${}_2$ plane as the long sought interaction determining $T_c$ in cuprates