PMID: 11328175May 1, 2001Paper

Evidence of electron fractionalization from photoemission spectra in the high temperature superconductors

Physical Review Letters
D OrgadZ X Shen

Abstract

In the normal state of the high temperature superconductors Bi(2)Sr(2)CaCu(2)O(8+delta) and La2(-x)Sr(x)CuO4, and in the related "stripe ordered" material, La(1.25)Nd(0.6)Sr(0.15)CuO4, there is sharp structure in the measured single hole spectral function, A<(k-->,omega), considered as a function of k--> at fixed small binding energy omega. At the same time, as a function of omega at fixed k--> on much of the putative Fermi surface, any structure in A<(k-->,omega), other than the Fermi cutoff, is very broad. This is characteristic of the situation in which there are no stable excitations with the quantum numbers of the electron, as is the case in the one-dimensional electron gas.

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Citations

Oct 27, 2017·Proceedings of the National Academy of Sciences of the United States of America·Andrew Lucas, Sean A Hartnoll
Apr 19, 2020·Annual Review of Neuroscience·A R Bishop
Oct 21, 2017·Physical Review Letters·Thomas HartmanRaghu Mahajan
Dec 31, 2005·Physical Review Letters·T ItoR Kato

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