Comment on arXiv:1810.04634v1 [cond-mat.str-el], "Hole-pocket-driven superconductivity and its universal features in the electron-doped cuprates"

TL;DR

This paper comments on recent findings that suggest hole-pocket-driven superconductivity in electron-doped cuprates, emphasizing the historical context and prior theoretical work that support a universal hole-related mechanism in cuprate superconductors.

Contribution

It highlights the longstanding theoretical and experimental evidence for hole-driven superconductivity in electron-doped cuprates, challenging the recent claims and emphasizing the universality of the mechanism.

Findings

Recent arXiv paper reports hole-pocket-driven superconductivity in electron-doped cuprates.

Historical theoretical work supports a universal hole-related mechanism in cuprates.

The paper emphasizes the importance of prior research in understanding cuprate superconductivity.

Abstract

The following letter, titled "Electron-Superconductivity in Oxides?", was submitted to Nature [Scientific Correspondence Section] on March 2, 1989, shortly after the experimental discovery of electron-doped cuprates announced in Nature on January 26, 1989. It predicted the findings recently reported in arXiv:1810.04634 by Yangmu Li, W. Tabis, Y. Tang, G. Yu, J. Jaroszynski, N. Barisic and M. Greven that "clearly point to hole-pocket-driven superconductivity in these nominally electron-doped materials", "reveal hole superconductivity in the electron-doped high-temperature superconductors" "after three decades of enormous scientific inquiry", and point to "a single underlying hole-related mechanism of superconductivity in the cuprates regardless of nominal carrier type". Many more papers on this topic were published by F. Marsiglio and the author in the ensuing 30 years from 1989 to the present. In omitting to refer to any of these theoretical works, arXiv:1810.04634 presents a misleading picture.