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  Interplay of structure and charge order revealed by quantum oscillations in thin films of Pr2CuO4±δ

Breznay, N. P., Hayes, I. M., Nair, N. L., Helm, T., Analytis, J. G., McDonald, R. D., et al. (2019). Interplay of structure and charge order revealed by quantum oscillations in thin films of Pr2CuO4±δ. Physical Review B, 100(23): 235111, pp. 1-8. doi:10.1103/PhysRevB.100.235111.

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 Creators:
Breznay, Nicholas P.1, Author
Hayes, Ian M.1, Author
Nair, Nityan L.1, Author
Helm, Toni1, Author
Analytis, James G.1, Author
McDonald, Ross D.1, Author
Zhu, Zengwei1, Author
Krockenberger, Yoshiharu1, Author
Irie, Hiroshi1, Author
Yamamoto, Hideki1, Author
Modic, K. A.2, Author              
Frano, Alex1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Microstructured Quantum Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_2466701              

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 Abstract: The discovery of quantum oscillations in hole- and electron-doped cuprate families has underscored the importance of the Fermi surface in cuprate superconductivity. While the observed quantum oscillations in both families have revealed the presence of reconstructed Fermi surfaces, there remains an important distinction between the two. In hole-doped cuprates the oscillations are thought to arise from the effects of a charge density wave, while in the electron-doped cuprates it is thought that these oscillations occur from an antiferromagnetically reconstructed Fermi surface, despite the fact that the oscillations are observed in overdoped compounds, far from the putative antiferromagnetic critical point. In this work we study thin films of Pr2CuO4 +/-delta, whose apparent doping can be finely tuned by annealing, allowing studies of quantum oscillations in samples straddling the critical point. We show that even though there is a mass enhancement of the quasiparticles, there are only small changes to the Fermi surface itself, suggesting that charge order is a more likely origin, with electronic correlations that are strongly dependent on the structural parameters.

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Language(s): eng - English
 Dates: 2019-12-062019-12-06
 Publication Status: Published in print
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 100 (23) Sequence Number: 235111 Start / End Page: 1 - 8 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008