Quantum Critical Point Shifts under Superconductivity: the Pnictides and the Cuprates
Show simple item record
| dc.contributor.author |
Moon, Eun |
|
| dc.contributor.author |
Sachdev, Subir
|
|
| dc.date.accessioned |
2012-01-12T16:15:19Z |
|
| dc.date.issued |
2010 |
|
| dc.identifier.citation |
Moon, Eun, and Subir Sachdev. 2010. Quantum critical point shifts under superconductivity: the pnictides and the cuprates. Physical Review B 82(10): 104516. |
en_US |
| dc.identifier.issn |
1550-235X |
en_US |
| dc.identifier.uri |
http://nrs.harvard.edu/urn-3:HUL.InstRepos:7615608 |
|
| dc.description.abstract |
We compare the position of an ordering transition in a metal to that in a superconductor. For the spin-density wave (SDW) transition, we find that the quantum critical point shifts by order \(\mid\Delta\mid\), where \(\Delta\) is pairing amplitude so that the region of SDW order is smaller in the superconductor than in the metal. This shift is larger than the \(\sim\mid\Delta\mid\) shift predicted by theories of competing orders which ignore Fermi-surface effects. For Ising-nematic order, the shift from Fermi-surface effects remains of order \(\mid\Delta\mid 2\). We discuss implications of these results for the phase diagrams of the cuprates and the pnictides. We conclude that recent observations imply that the Ising-nematic order is tied to the square of the SDW order in the pnictides but not in the cuprates. |
en_US |
| dc.description.sponsorship |
Physics |
en_US |
| dc.language.iso |
en_US |
en_US |
| dc.publisher |
American Physical Society |
en_US |
| dc.relation.isversionof |
doi://10.1103/PhysRevB.82.104516 |
en_US |
| dc.relation.hasversion |
http://arxiv.org/abs/1005.3312v4 |
en_US |
| dash.license |
OAP |
|
| dc.subject |
superconductivity |
en_US |
| dc.subject |
strongly correlated electrons |
en_US |
| dc.title |
Quantum Critical Point Shifts under Superconductivity: the Pnictides and the Cuprates |
en_US |
| dc.type |
Journal Article |
en_US |
| dc.description.version |
Author's Original |
en_US |
| dc.relation.journal |
Physical Review B |
en_US |
| dash.depositing.author |
Sachdev, Subir
|
|
| dc.date.available |
2012-01-12T16:15:19Z |
|
Files in this item
This item appears in the following Collection(s)
-
FAS Scholarly Articles [5171]
Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
Show simple item record
Contact administrator regarding this item (to report mistakes or request changes)
