Paired electron pockets in the hole-doped cuprates
| dc.creator | Galitski, Victor | |
| dc.creator | Sachdev, Subir | |
| dc.date | 2009-01-02 | |
| dc.date | 2009-03-13 | |
| dc.date.accessioned | 2026-07-07T13:07:07Z | |
| dc.date.available | 2026-07-07T13:07:07Z | |
| dc.description | We propose a theory for the underdoped hole-doped cuprates, focusing on the "nodal-anti-nodal dichotomy" observed in recent experiments. Our theory begins with an ordered antiferromagnetic Fermi liquid with electron and hole pockets. We argue that it is useful to consider a quantum transition at which the loss of antiferromagnetic order leads to a hypothetical metallic "algebraic charge liquid" (ACL) with pockets of charge -e and +e fermions, and an emergent U(1) gauge field; the instabilities of the ACL lead to the low temperature phases of the underdoped cuprates. The pairing instability leads to a superconductor with the strongest pairing within the -e Fermi pockets, a d-wave pairing signature for electrons, and very weak nodal-point pairing of the +e fermions near the Brillouin zone diagonals. The influence of an applied magnetic field is discussed using a proposed phase diagram as a function of field strength and doping. We describe the influence of gauge field and pairing fluctuations on the quantum Shubnikov-de Haas oscillations in the normal states induced by the field. For the finite temperature pseudogap region, our theory has some similarities to the phenomenological two-fluid model of -2e bosons and +e fermions proposed by Geshkenbein, Ioffe, and Larkin [cond-mat/9609209], which describes anomalous aspects of transverse transport in a magnetic field. | |
| dc.description | 38 pages, 5 figures; (v3) added refs and shortened Section IV; (v4) added phase diagrams | |
| dc.identifier | https://arxiv.org/abs/0901.0005 | |
| dc.identifier | http://arxiv.org/abs/0901.0005 | |
| dc.identifier | Physical Review B 79, 134512 (2009) | |
| dc.identifier | doi:10.1103/PhysRevB.79.134512 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/227988 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Superconductivity | |
| dc.title | Paired electron pockets in the hole-doped cuprates | |
| dc.type | text |