Overdoping YBa2Cu3O7 via a heterostructure with La0.67Sr0.33MnO3
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2025
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866929687956029440 |
|---|---|
| author | Singh, Ankita Datta, Sawani Pandeya, Ram Prakash Kandukuri, Srinivas C. Gokhale, Mahesh Maiti, Kalobaran |
| author_facet | Singh, Ankita Datta, Sawani Pandeya, Ram Prakash Kandukuri, Srinivas C. Gokhale, Mahesh Maiti, Kalobaran |
| contents | YBa2Cu3Ox, the first superconductor discovered with Tc higher than 77 K, is among the most complex cuprates having both CuO chains and plains in the structure. YBa2Cu3O7 (YBCO) exhibits slightly overdoped behavior and further doping is difficult as all the lattice sites in the CuO chains are occupied. We have grown high quality single crystalline films of YBCO and bilayer La0.67Sr0.33MnO3 (LSMO)/YBCO exhibiting superconductivity in both the cases. Photoemission spectra reveal different surface and bulk electronic structures; the difference reduces in the bilayer. Evidence of charge transfer across the bilayer interface is observed in the valence band and core level spectra indicating an overdoped condition in YBCO. While superconductivity in the presence of magnetic order in the bilayer is puzzling, this pathway to reach overdoped regime in YBCO opens up a new landscape to probe the exotic physics of unconventional superconductivity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_15800 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Overdoping YBa2Cu3O7 via a heterostructure with La0.67Sr0.33MnO3 Singh, Ankita Datta, Sawani Pandeya, Ram Prakash Kandukuri, Srinivas C. Gokhale, Mahesh Maiti, Kalobaran Superconductivity Strongly Correlated Electrons YBa2Cu3Ox, the first superconductor discovered with Tc higher than 77 K, is among the most complex cuprates having both CuO chains and plains in the structure. YBa2Cu3O7 (YBCO) exhibits slightly overdoped behavior and further doping is difficult as all the lattice sites in the CuO chains are occupied. We have grown high quality single crystalline films of YBCO and bilayer La0.67Sr0.33MnO3 (LSMO)/YBCO exhibiting superconductivity in both the cases. Photoemission spectra reveal different surface and bulk electronic structures; the difference reduces in the bilayer. Evidence of charge transfer across the bilayer interface is observed in the valence band and core level spectra indicating an overdoped condition in YBCO. While superconductivity in the presence of magnetic order in the bilayer is puzzling, this pathway to reach overdoped regime in YBCO opens up a new landscape to probe the exotic physics of unconventional superconductivity. |
| title | Overdoping YBa2Cu3O7 via a heterostructure with La0.67Sr0.33MnO3 |
| topic | Superconductivity Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2501.15800 |