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Title: X-ray dichroism and the pseudogap phase of cuprates.

Abstract

A recent polarized x-ray absorption experiment on the high-temperature cuprate superconductor Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+x} indicates the presence of broken parity symmetry below the temperature T*, where a pseudogap appears in photoemission. We critically analyze the x-ray data and conclude that a parity-breaking signal of the kind suggested is unlikely based on the crystal structures reported in the literature. Possible other origins of the observed dichroism signal are discussed. We propose x-ray scattering experiments that can be done in order to determine whether such alternative interpretations are valid or not.

Authors:
; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
915000
Report Number(s):
ANL/MSD/JA-59021
Journal ID: ISSN 0163-1829; PRBMDO; TRN: US200817%%199
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Phys. Rev. B; Journal Volume: 76; Journal Issue: 2007
Country of Publication:
United States
Language:
ENGLISH
Subject:
36 MATERIALS SCIENCE; ABSORPTION; CRYSTAL STRUCTURE; CUPRATES; DICHROISM; PARITY; PHOTOEMISSION; SCATTERING; SUPERCONDUCTORS; SYMMETRY

Citation Formats

Di Matteo, S., Norman, M. R., Materials Science Division, and Lab. Nazionali di Frascati INFN. X-ray dichroism and the pseudogap phase of cuprates.. United States: N. p., 2007. Web. doi:10.1103/PhysRevB.76.014510.
Di Matteo, S., Norman, M. R., Materials Science Division, & Lab. Nazionali di Frascati INFN. X-ray dichroism and the pseudogap phase of cuprates.. United States. doi:10.1103/PhysRevB.76.014510.
Di Matteo, S., Norman, M. R., Materials Science Division, and Lab. Nazionali di Frascati INFN. Mon . "X-ray dichroism and the pseudogap phase of cuprates.". United States. doi:10.1103/PhysRevB.76.014510.
@article{osti_915000,
title = {X-ray dichroism and the pseudogap phase of cuprates.},
author = {Di Matteo, S. and Norman, M. R. and Materials Science Division and Lab. Nazionali di Frascati INFN},
abstractNote = {A recent polarized x-ray absorption experiment on the high-temperature cuprate superconductor Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+x} indicates the presence of broken parity symmetry below the temperature T*, where a pseudogap appears in photoemission. We critically analyze the x-ray data and conclude that a parity-breaking signal of the kind suggested is unlikely based on the crystal structures reported in the literature. Possible other origins of the observed dichroism signal are discussed. We propose x-ray scattering experiments that can be done in order to determine whether such alternative interpretations are valid or not.},
doi = {10.1103/PhysRevB.76.014510},
journal = {Phys. Rev. B},
number = 2007,
volume = 76,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}