Overdoped end of the cuprate phase diagram
Studying the disappearance of superconductivity at the end of the overdoped region of the cuprate phase diagram offers a different approach for investigating the interaction which is responsible for pairing in these materials. In the underdoped region this question is complicated by the presence of...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2020-07-01
|
| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.033132 |
| _version_ | 1797211354329776128 |
|---|---|
| author | Thomas A. Maier Seher Karakuzu Douglas J. Scalapino |
| author_facet | Thomas A. Maier Seher Karakuzu Douglas J. Scalapino |
| author_sort | Thomas A. Maier |
| collection | DOAJ |
| description | Studying the disappearance of superconductivity at the end of the overdoped region of the cuprate phase diagram offers a different approach for investigating the interaction which is responsible for pairing in these materials. In the underdoped region this question is complicated by the presence of charge and stripe ordered phases as well as the pseudogap. In the overdoped region the situation appears simpler with only a normal phase, a superconducting phase, and impurity scattering. Here, for the overdoped region, we report the results of a combined dynamic cluster approximation (DCA) and a weak Born impurity scattering calculation for a t-t^{′}-U Hubbard model. We find that a decrease in the d-wave pairing strength of the two-particle scattering vertex is closely coupled to changes in the momentum and frequency structure of the magnetic spin fluctuations as the system is overdoped. Treating the impurity scattering within a disordered BCS d-wave approximation, we see how the combined effects of the decreasing d-wave pairing strength and weak impurity scattering lead to the end of the T_{c} dome. |
| first_indexed | 2024-04-24T10:25:09Z |
| format | Article |
| id | doaj.art-ab6e9d6f379d43da82108443e920f599 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:25:09Z |
| publishDate | 2020-07-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-ab6e9d6f379d43da82108443e920f5992024-04-12T16:57:39ZengAmerican Physical SocietyPhysical Review Research2643-15642020-07-012303313210.1103/PhysRevResearch.2.033132Overdoped end of the cuprate phase diagramThomas A. MaierSeher KarakuzuDouglas J. ScalapinoStudying the disappearance of superconductivity at the end of the overdoped region of the cuprate phase diagram offers a different approach for investigating the interaction which is responsible for pairing in these materials. In the underdoped region this question is complicated by the presence of charge and stripe ordered phases as well as the pseudogap. In the overdoped region the situation appears simpler with only a normal phase, a superconducting phase, and impurity scattering. Here, for the overdoped region, we report the results of a combined dynamic cluster approximation (DCA) and a weak Born impurity scattering calculation for a t-t^{′}-U Hubbard model. We find that a decrease in the d-wave pairing strength of the two-particle scattering vertex is closely coupled to changes in the momentum and frequency structure of the magnetic spin fluctuations as the system is overdoped. Treating the impurity scattering within a disordered BCS d-wave approximation, we see how the combined effects of the decreasing d-wave pairing strength and weak impurity scattering lead to the end of the T_{c} dome.http://doi.org/10.1103/PhysRevResearch.2.033132 |
| spellingShingle | Thomas A. Maier Seher Karakuzu Douglas J. Scalapino Overdoped end of the cuprate phase diagram Physical Review Research |
| title | Overdoped end of the cuprate phase diagram |
| title_full | Overdoped end of the cuprate phase diagram |
| title_fullStr | Overdoped end of the cuprate phase diagram |
| title_full_unstemmed | Overdoped end of the cuprate phase diagram |
| title_short | Overdoped end of the cuprate phase diagram |
| title_sort | overdoped end of the cuprate phase diagram |
| url | http://doi.org/10.1103/PhysRevResearch.2.033132 |
| work_keys_str_mv | AT thomasamaier overdopedendofthecupratephasediagram AT seherkarakuzu overdopedendofthecupratephasediagram AT douglasjscalapino overdopedendofthecupratephasediagram |