forgot password?
register here
Research articles
  search articles
  reviews guidelines
  articles index
My Pages
my alerts
  my messages
  my reviews
  my favorites
Members: 2997
Articles: 2'062'493
Articles rated: 2581

14 April 2021
  » arxiv » 1007.3216

 Article overview

Intra-unit-cell electronic nematicity of the high-Tc copper-oxide pseudogap states
M. J. Lawler ; K. Fujita ; Jhinhwan Lee ; A.R. Schmidt ; Y. Kohsaka ; Chung Koo Kim ; H. Eisaki ; S. Uchida ; J.C. Davis ; J.P. Sethna ; Eun-Ah Kim ;
Rating Members: 3.66/5 (1 reader) | Visitors: 2.5/5 (2 visitors)
Date 19 Jul 2010
AbstractIn the high-transition-temperature (high-Tc) superconductors the pseudogap phase becomes predominant when the density of doped holes is reduced1. Within this phase it has been unclear which electronic symmetries (if any) are broken, what the identity of any associated order parameter might be, and which microscopic electronic degrees of freedom are active. Here we report the determination of a quantitative order parameter representing intra-unit-cell nematicity: the breaking of rotational symmetry by the electronic structure within CuO2 unit cell. We analyze spectroscopic-imaging scanning tunneling microscope images of the intra-unit-cell states in underdoped Bi2Sr2CaCu2O8+{delta} and, using two independent evaluation techniques, find evidence for electronic nematicity of the states close to the pseudogap energy. Moreover, we demonstrate directly that these phenomena arise from electronic differences at the two oxygen sites within each unit cell. If the characteristics of the pseudogap seen here and by other techniques all have the same microscopic origin, this phase involves weak magnetic states at the O sites that break 90o -rotational symmetry within every CuO2 unit cell.
Source arXiv, 1007.3216
Services Forum | Review | PDF | Favorites   
Visitor rating: did you like this article? no 1   2   3   4   5   yes

1 review found:
(To access fulltext of a review, click on titles below.)
1. review 10070060    * Rate this comment.
Review title: Electronic nematicity in high-Tc pseudogap phase
Reviewer: reviewer8
Date: 20 July 2010 at 07:55 GMT.
Comment: This work find evidence for electronic nematicity close to the pseudogap energy. It is however not clear whether the pseudogap state is directly related to the nematicit.

browser CCBot/2.0 (
» my Online CV
» Free

News, job offers and information for researchers and scientists:
home  |  contact  |  terms of use  |  sitemap
Copyright © 2005-2021 - Scimetrica