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Interplay of structure and charge order revealed by quantum oscillations in thin films of Pr2 CuO4±δ

Journal Article · · Physical Review B
 [1];  [1];  [1];  [1];  [1];  [2];  [2];  [3];  [4];  [4];  [5];  [6];  [7];  [7]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa (Japan)
  4. NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa (Japan)
  5. Max-Planck-Inst. for Chemical Physics of Solids, Dresden (Germany); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  6. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS); Univ. of California, Berkeley, CA (United States)
  7. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
+ Show Author Affiliations
The discovery of quantum oscillations in hole- A nd 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±δ, whose apparent doping can be finely tuned by annealing, allowing studies of quantum oscillations in samples straddling the critical point. Here, 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.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
89233218CNA000001; AC02-05CH11231
OSTI ID:
1603557
Alternate ID(s):
OSTI ID: 1680012
Report Number(s):
LA-UR--15-28209; ark:/13030/qt86c788db
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 23 Vol. 100; ISSN 2469-9950; ISSN PRBMDO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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