Unusual behavior of cuprates explained by heterogeneous charge localization

D. Pelc, P. Popčević, M. Požek, M. Greven, N. Barišić

Research output: Contribution to journalArticle

11 Scopus citations


The discovery of high-temperature superconductivity in cuprates ranks among the major scientific milestones of the past half century, yet pivotal questions regarding the complex phase diagram of these materials remain unanswered. Generally thought of as doped charge-transfer insulators, these complex oxides exhibit pseudogap, strange-metal, superconducting, and Fermi liquid behavior with increasing hole-dopant concentration. Motivated by recent experimental observations, here we introduce a phenomenological model wherein exactly one hole per planar copper-oxygen unit is delocalized with increasing doping and temperature. The model is percolative in nature, with parameters that are highly consistent with experiments. It comprehensively captures key unconventional experimental results, including the temperature and the doping dependence of the pseudogap phenomenon, the strange-metal linear temperature dependence of the planar resistivity, and the doping dependence of the superfluid density. The success and simplicity of the model greatly demystify the cuprate phase diagram and point to a local superconducting pairing mechanism.

Original languageEnglish (US)
Article numbereaau4538
JournalScience advances
Issue number1
StatePublished - Jan 25 2019

PubMed: MeSH publication types

  • Journal Article

Fingerprint Dive into the research topics of 'Unusual behavior of cuprates explained by heterogeneous charge localization'. Together they form a unique fingerprint.

  • Cite this