Multiple broken symmetries in striped La2−xBaxCuO4 detected by the field-symmetric Nernst effect
We report a thermoelectric investigation of the stripe and superconducting phases of the cuprate La2−xBaxuO4 near x=1/8. We vary the doping and the magnetic field to identify features in the field-symmetric Nernst effect consistent with the reports of time-reversal symmetry breaking above the superc...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2018
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| Online Access: | https://hdl.handle.net/10356/80437 http://hdl.handle.net/10220/46546 |
| _version_ | 1826127474700845056 |
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| author | Tee, Xian Yang Ito, T. Ushiyama, T. Tomioka, Y. Panagopoulos, Christos Soumyanarayanan, Anjan |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Tee, Xian Yang Ito, T. Ushiyama, T. Tomioka, Y. Panagopoulos, Christos Soumyanarayanan, Anjan |
| author_sort | Tee, Xian Yang |
| collection | NTU |
| description | We report a thermoelectric investigation of the stripe and superconducting phases of the cuprate La2−xBaxuO4 near x=1/8. We vary the doping and the magnetic field to identify features in the field-symmetric Nernst effect consistent with the reports of time-reversal symmetry breaking above the superconducting Tc. Crucially, we further detect a field-invariant peak at the stripe charge order temperature, TCO. Our observations suggest the onset of a nontrivial charge ordered phase at TCO, and the subsequent presence of spontaneously generated vortices before the emergence of bulk superconductivity. |
| first_indexed | 2024-10-01T07:09:08Z |
| format | Journal Article |
| id | ntu-10356/80437 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:09:08Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/804372023-02-28T19:30:52Z Multiple broken symmetries in striped La2−xBaxCuO4 detected by the field-symmetric Nernst effect Tee, Xian Yang Ito, T. Ushiyama, T. Tomioka, Y. Panagopoulos, Christos Soumyanarayanan, Anjan School of Physical and Mathematical Sciences Cuprates Pseudogap Phase DRNTU::Science::Physics We report a thermoelectric investigation of the stripe and superconducting phases of the cuprate La2−xBaxuO4 near x=1/8. We vary the doping and the magnetic field to identify features in the field-symmetric Nernst effect consistent with the reports of time-reversal symmetry breaking above the superconducting Tc. Crucially, we further detect a field-invariant peak at the stripe charge order temperature, TCO. Our observations suggest the onset of a nontrivial charge ordered phase at TCO, and the subsequent presence of spontaneously generated vortices before the emergence of bulk superconductivity. NRF (Natl Research Foundation, S’pore) Published version 2018-11-02T07:35:51Z 2019-12-06T13:49:24Z 2018-11-02T07:35:51Z 2019-12-06T13:49:24Z 2016 Journal Article Soumyanarayanan, A., Tee, X. Y., Ito, T., Ushiyama, T., Tomioka, Y., & Panagopoulos, C. (2016). Multiple broken symmetries in striped La2−xBaxCuO4 detected by the field-symmetric Nernst effect. Physical Review B, 93(5), 054512-. doi:10.1103/PhysRevB.93.054512 2469-9950 https://hdl.handle.net/10356/80437 http://hdl.handle.net/10220/46546 10.1103/PhysRevB.93.054512 en Physical Review B © 2016 American Physical Society (APS). This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society (APS). The published version is available at: [http://dx.doi.org/10.1103/PhysRevB.93.054512]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 5 p. application/pdf |
| spellingShingle | Cuprates Pseudogap Phase DRNTU::Science::Physics Tee, Xian Yang Ito, T. Ushiyama, T. Tomioka, Y. Panagopoulos, Christos Soumyanarayanan, Anjan Multiple broken symmetries in striped La2−xBaxCuO4 detected by the field-symmetric Nernst effect |
| title | Multiple broken symmetries in striped La2−xBaxCuO4 detected by the field-symmetric Nernst effect |
| title_full | Multiple broken symmetries in striped La2−xBaxCuO4 detected by the field-symmetric Nernst effect |
| title_fullStr | Multiple broken symmetries in striped La2−xBaxCuO4 detected by the field-symmetric Nernst effect |
| title_full_unstemmed | Multiple broken symmetries in striped La2−xBaxCuO4 detected by the field-symmetric Nernst effect |
| title_short | Multiple broken symmetries in striped La2−xBaxCuO4 detected by the field-symmetric Nernst effect |
| title_sort | multiple broken symmetries in striped la2 xbaxcuo4 detected by the field symmetric nernst effect |
| topic | Cuprates Pseudogap Phase DRNTU::Science::Physics |
| url | https://hdl.handle.net/10356/80437 http://hdl.handle.net/10220/46546 |
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