Abstract
The combination of geometric frustration, extended hopping, spin-orbit coupling, and a disordered magnetic ground state make NaRuO2 an attractive Heisenberg-Kitaev candidate material. Historically, NaRuO2 has been a challenging material to produce, even in polycrystalline form. Here we present synthetic efforts that identify a propensity for NaRu defects to form in NaRuO2, revealing a full solid-solution between NaRuO2 and disordered Na2RuO3. We report the synthesis of alloys along the Na3+xRu3-xO6 solid solution and characterize changes in the bulk magnetization and electron transport as a function of Na loading. Our results highlight the importance of stoichiometry control in NaRuO2 when investigating and interpreting this material's physical properties.
Original language | English |
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Article number | 104413 |
Journal | Physical Review Materials |
Volume | 6 |
Issue number | 10 |
DOIs | |
State | Published - Oct 2022 |
Externally published | Yes |
Funding
We acknowledge fruitful conversations with A. A. Aczel, G. Pokharel, and A. R. Ericks. This work was supported by the US Department of Energy (DOE), Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Grant No. DE-SC0017752. B.R.O. and P.M.S. both acknowledge financial support from the California NanoSystems Institute through the Elings Fellowship program. The research made use of the shared facilities of the NSF Materials Research Science and Engineering Center at UC Santa Barbara (DMR- 1720256). The UC Santa Barbara MRSEC is a member of the Materials Research Facilities Network . This work also used facilities supported via the UC Santa Barbara NSF Quantum Foundry funded via the Q-AMASE-i program under Award No. DMR-1906325.