Electrochemical oxygen intercalation into Sr$_2$IrO$_4$
In: Journal of Physics and Chemistry of Solids Journal of Physics and Chemistry of Solids, Elsevier, 2018, 112, pp.1-7. ⟨10.1016/j.jpcs.2017.08.032⟩ Journal of Physics and Chemistry of Solids, 2018, 112, pp.1-7. ⟨10.1016/j.jpcs.2017.08.032⟩; (2018)
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Zugriff:
Oxygen was electrochemically intercalated into Sr$_2$IrO$_4$ sintered samples, single crystals and a thin film. We estimate the diffusion length to a few $\mu$m and the concentration of the intercalated oxygen to $\delta$ $\simeq$ 0.01. The latter is thus much smaller than for the cuprate and nickelate parent compounds, for which $\delta$ $>$ 0.1 is obtained, which could be a consequence of larger steric effects. The influence of the oxygen doping state on resistivity is small, indicating also a poor charge transfer to the conduction band. It is shown that electrochemical intercalation of oxygen may also contribute to doping, when gating thin films with ionic liquid in the presence of water.
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Electrochemical oxygen intercalation into Sr$_2$IrO$_4$
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| Autor/in / Beteiligte Person: | Brouet, Véronique ; Colson, D. ; Forget, A. ; Li, Z. Z. ; Fruchter, L. ; Moussy, J.-B. ; Laboratoire de Physique des Solides (LPS) ; Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11) ; Laboratoire Nano-Magnétisme et Oxydes (LNO) ; Service de physique de l'état condensé (SPEC - UMR3680) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut Rayonnement Matière de Saclay (IRAMIS) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay ; ANR-15-CE30-0009,SOCRATE,Nouveaux états électroniques corrélés émergeant d'un couplage spin-orbite fort : le cas des iridates(2015) ; Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS) |
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| Quelle: | Journal of Physics and Chemistry of Solids Journal of Physics and Chemistry of Solids, Elsevier, 2018, 112, pp.1-7. ⟨10.1016/j.jpcs.2017.08.032⟩ Journal of Physics and Chemistry of Solids, 2018, 112, pp.1-7. ⟨10.1016/j.jpcs.2017.08.032⟩; (2018) |
| Veröffentlichung: | HAL CCSD, 2018 |
| Medientyp: | unknown |
| ISSN: | 0022-3697 (print) |
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