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Title: Multiple broken symmetries in striped La2−xBaxCuO4 detected by the field-symmetric Nernst effect
Authors: Tee, Xian Yang
Ito, T.
Ushiyama, T.
Tomioka, Y.
Panagopoulos, Christos
Soumyanarayanan, Anjan
Keywords: Cuprates
Pseudogap Phase
Issue Date: 2016
Source: 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
Series/Report no.: Physical Review B
Abstract: 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.
ISSN: 2469-9950
DOI: 10.1103/PhysRevB.93.054512
Schools: School of Physical and Mathematical Sciences 
Rights: © 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: []. 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.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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