Broken rotational symmetry on the Fermi surface of a high-Tc superconductor
Condensed matter physics: Rotational symmetry breaking in unconventional superconductors Observations of broken rotational symmetry in YBa2Cu3O6.58 suggest that it could be a universal feature in unconventional superconductors. The origin of superconductivity in materials that do not conform to conv...
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| Autores principales: | , , , , , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Nature Portfolio
2017
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/b3e066fc457c48f294afa0c52415beb1 |
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| Sumario: | Condensed matter physics: Rotational symmetry breaking in unconventional superconductors Observations of broken rotational symmetry in YBa2Cu3O6.58 suggest that it could be a universal feature in unconventional superconductors. The origin of superconductivity in materials that do not conform to conventional Bardeen–Cooper–Schrieffer theory remains an important puzzle for condensed matter physicists; one that could hold the key to designing materials that have no resistance near room temperature. An international team of researchers led by Brad Ramshaw used angle-dependent magnetoresistance measurements to directly reveal a broken rotational symmetry on the Fermi surface of underdoped crystals of the copper oxide-based unconventional superconductor YBa2Cu3O6.58. As this feature has been found in several other classes of unconventional superconductors, the authors suggest that this may be a universal feature, which could play an important role in the unconventional formation of superconducting pairs. |
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