Actions for Effect of the pseudogap on the transition temperature in the cuprates and implications for its origin [electronic resource].

Email RIS file
Bookmark
Report an Issue

Effect of the pseudogap on the transition temperature in the cuprates and implications for its origin [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy. Office of Basic Energy Sciences, 2014.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description
pages 357-360 : digital, PDF file
Additional Creators
Argonne National Laboratory, United States. Department of Energy. Office of Basic Energy Sciences, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Free-to-read Unrestricted online access
Summary
We present cuprates that possess a large pseudogap that spans much of their phase diagram. The origin of this pseudogap is as debated as the mechanism for high-temperature superconductivity. In one class of theories, the pseudogap arises from some instability not related to pairing, typically charge, spin or orbital current ordering. Evidence of this has come from a variety of measurements indicating symmetry breaking. On the other side are theories where the pseudogap is associated with pairing. This ranges from preformed pairs to resonating valence bond theories where spin singlets become charge coherent. Here, we study pairing in the cuprates by constructing the pair vertex using spectral functions derived from angle-resolved photoemission data. Assuming that the pseudogap is not due to pairing, we find that the superconducting instability is strongly suppressed, in stark contrast to what is actually observed. We trace this suppression to the destruction of the BCS logarithmic singularity from a combination of the pseudogap and lifetime broadening. In conclusion, our findings strongly support those theories of the cuprates where the pseudogap is instead due to pairing.
Report Numbers
E 1.99:1356590
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
03/30/2014.
"103683"
Nature Physics 10 5 ISSN 1745-2473 AM
Vivek Mishra; U. Chatterjee; J. C. Campuzano; M. R. Norman.
Funding Information
AC02-06CH11357
AC02-98CH10886
View MARC record | catkey: 23759470