Pseudogap and competing states in underdoped cuprates
โ Scribed by Patrick A. Lee
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 365 KB
- Volume
- 408-410
- Category
- Article
- ISSN
- 0921-4534
No coin nor oath required. For personal study only.
โฆ Synopsis
I shall argue that the high T c problem is the problem of doping into a Mott insulator. Furthermore, the well documented pseudo-gap phenomenon in underdoped cuprates holds the key to understanding this physics. Phase fluctuation alone cannot explain this phenomenon, but there is a clear need to identify a competing state which lives in the vortex core. The staggered flux state is a good candidate for the competing state and experimental tests of these ideas will be discussed.
๐ SIMILAR VOLUMES
We consider the magnetic properties of high T c cuprates from a gauge theory point of view, with emphasis on the underdoped regime. Underdoped cuprates possess certain antiferromagnetic correlations, as evidenced, for example, by different temperature dependence of the Cu and O site NMR relaxation r
## Recent angle resolved photoemission experiments by Kanigel et al., [Nature Physics 2 (2006) 447] show that the low energy electronic excitations in the normal state of underdoped cuprate superconductors exist on open Fermi arcs which shrink upon cooling, and appear to extrapolate to nodal poin