Triple magnetic stacking in an iron-containing cuprate with Cu-Fe-Cu magnetic blocks
The iron-substituted FeSr2YCu2O7.08 cuprate displays long-range magnetic ordering below TN ∼ 140 K, involving both Fe3+ cations in the charge reservoir block (CRB) and Cu2+ cations in the CuO2 planes. The magnetic structure comprises antiferromagnetic in-plane coupling within the FeO and the CuO2 la...
| Autores: | , , , , , , , |
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| Formato: | artículo |
| Fecha de publicación: | 2024 |
| País: | España |
| Recursos: | Universidad Autónoma de Madrid |
| Repositorio: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.uam.es:10486/717197 |
| Acesso em linha: | http://hdl.handle.net/10486/717197 https://dx.doi.org/10.1021/acs.chemmater.4c00588 |
| Access Level: | acceso abierto |
| Palavra-chave: | Antiferromagnetism building materials copper copper alloys electron spin resonance spectroscopy heavy ions negative ions positive ions Química |
| Resumo: | The iron-substituted FeSr2YCu2O7.08 cuprate displays long-range magnetic ordering below TN ∼ 140 K, involving both Fe3+ cations in the charge reservoir block (CRB) and Cu2+ cations in the CuO2 planes. The magnetic structure comprises antiferromagnetic in-plane coupling within the FeO and the CuO2 layers, but a ferromagnetic coupling along the stacking direction. The low dimensional character of the magnetic structure is reflected in dynamic magnetic correlations over a wide range of temperature, Tonset = 400 K > T > TN = 140 K, as demonstrated by means of 57Fe-Mössbauer spectroscopy and muon spin relaxation spectroscopy measurements. The transition from confined low-dimensional magnetic correlations within each FeO and CuO2 layer to a three-dimensional magnetic structure by lowering the temperature is followed, emphasizing the role of the interlayer coupling. The observation of this new magnetic structure for a M-1212 type cuprate opens up new possibilities for exploring the interplay between magnetic and superconducting interactions in classical layered cuprates |
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