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@ARTICLE{Forslund:634408,
      author       = {Forslund, Ola Kenji and Sugiyama, Jun and Andreica, Daniel
                      and Umegaki, Izumi and Nocerino, Elisabetta and Brett,
                      Calvin and Roth, Stephan and Söderberg, L. Daniel and
                      Matsubara, Nami and Hansen, Thomas C. and Hoshikawa, Akinori
                      and Guerin, Elodie and Delmas, Claude and Sassa, Yasmine and
                      Månsson, Martin},
      title        = {{R}evisiting {N}a$_x${C}o{O}$_2$: {A} renewed magnetic
                      phase diagram based on electrochemical reaction synthesis},
      journal      = {Physical review research},
      volume       = {7},
      number       = {2},
      issn         = {2643-1564},
      address      = {College Park, MD},
      publisher    = {APS},
      reportid     = {PUBDB-2025-02492},
      pages        = {023138},
      year         = {2025},
      abstract     = {The assertion of intrinsic material properties based on
                      measured experimental data is being challenged by emerging
                      sample synthesis protocols, which opens new avenues for
                      discovering novel functionalities. In this study, we revisit
                      one of the most widely studied strongly correlated materials
                      of the early 2000s, Na$_𝑥$⁢CoO$_2$ (NCO). Leveraging
                      the sensitivity of muon spin rotation and relaxation
                      (𝜇$^+$⁢SR) measurements, we discern significant
                      differences between NCO samples synthesized via conventional
                      solid-state reaction (SSR) and our electrochemical reaction
                      (ECR) approach. Contrary to SSR-synthesized
                      Na$_{0.7}$⁢CoO$_2$, which exhibits a nonmagnetic ground
                      state, our ECR-derived sample showcases an antiferromagnetic
                      (AF) order from 𝑥≥0.7, challenging established phase
                      boundaries. We attribute the observed magnetic phenomena in
                      ECR-NCO to long-range order of Na-ions and/or vacancies, as
                      well as the inherent flexibility of the crystal framework.
                      Our study holds implications for tailoring and optimization
                      of next-generation devices based on layered materials.},
      cin          = {DOOR ; HAS-User / FS-SMA},
      ddc          = {530},
      cid          = {I:(DE-H253)HAS-User-20120731 / I:(DE-H253)FS-SMA-20220811},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
                      SWEDEN-DESY - SWEDEN-DESY Collaboration
                      $(2020_Join2-SWEDEN-DESY)$},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
                      $G:(DE-HGF)2020_Join2-SWEDEN-DESY$},
      experiment   = {EXP:(DE-H253)P-P03-20150101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1103/PhysRevResearch.7.023138},
      url          = {https://bib-pubdb1.desy.de/record/634408},
}