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Coexistence of Two Spin Frustration Pathways in the Quantum Spin Liquid Ca(10)Cr(7)O(28)
[Image: see text] Kagome antiferromagnetic lattices are of high interest because the geometric frustration is expected to give rise to highly degenerated ground states that may host exotic properties such as quantum spin liquid (QSL). Ca(10)Cr(7)O(28) has been reported to display all the features ex...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9580002/ https://www.ncbi.nlm.nih.gov/pubmed/36191153 http://dx.doi.org/10.1021/acs.inorgchem.2c01831 |
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author | Alshalawi, Dhoha R. Alonso, José M. Landa-Cánovas, Angel R. de la Presa, Patricia |
author_facet | Alshalawi, Dhoha R. Alonso, José M. Landa-Cánovas, Angel R. de la Presa, Patricia |
author_sort | Alshalawi, Dhoha R. |
collection | PubMed |
description | [Image: see text] Kagome antiferromagnetic lattices are of high interest because the geometric frustration is expected to give rise to highly degenerated ground states that may host exotic properties such as quantum spin liquid (QSL). Ca(10)Cr(7)O(28) has been reported to display all the features expected for a QSL. At present, most of the literature reports on samples synthesized with starting materials ratio CaO/Cr(2)O(3) 3:1, which leads to a material with small amounts of CaCrO(4) and CaO as secondary phases; this impurity excess affects not only the magnetic properties but also the structural ones. In this work, samples with starting material ratios CaO/Cr(2)O(3) 3:1, 2.9:1, 2.85:1, and 2.8:1 have been synthesized and studied by X-ray diffraction with Rietveld refinements, selected area electron diffraction measurements, high-resolution transmission electron microscopy (HRTEM), low-temperature magnetometry, and magnetic calorimetry. This result shows that a highly pure Ca(10)Cr(7)O(28) phase is obtained for a CaO/Cr(2)O(3) ratio of 2.85:1 instead of the 3:1 usually reported; the incorrect stoichiometric ratio leads to a larger distortion of the corner-sharing triangular arrangement of magnetic ions Cr(+5) with S = 1/2 in the Kagome lattice. In addition, our study reveals that there exists another frustration pathway which is an asymmetric zigzag spin ladder along the directions [211], [12–1], and [1–1–1], in which the Cr–Cr distances are shorter than in the Kagome layers. |
format | Online Article Text |
id | pubmed-9580002 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-95800022022-10-20 Coexistence of Two Spin Frustration Pathways in the Quantum Spin Liquid Ca(10)Cr(7)O(28) Alshalawi, Dhoha R. Alonso, José M. Landa-Cánovas, Angel R. de la Presa, Patricia Inorg Chem [Image: see text] Kagome antiferromagnetic lattices are of high interest because the geometric frustration is expected to give rise to highly degenerated ground states that may host exotic properties such as quantum spin liquid (QSL). Ca(10)Cr(7)O(28) has been reported to display all the features expected for a QSL. At present, most of the literature reports on samples synthesized with starting materials ratio CaO/Cr(2)O(3) 3:1, which leads to a material with small amounts of CaCrO(4) and CaO as secondary phases; this impurity excess affects not only the magnetic properties but also the structural ones. In this work, samples with starting material ratios CaO/Cr(2)O(3) 3:1, 2.9:1, 2.85:1, and 2.8:1 have been synthesized and studied by X-ray diffraction with Rietveld refinements, selected area electron diffraction measurements, high-resolution transmission electron microscopy (HRTEM), low-temperature magnetometry, and magnetic calorimetry. This result shows that a highly pure Ca(10)Cr(7)O(28) phase is obtained for a CaO/Cr(2)O(3) ratio of 2.85:1 instead of the 3:1 usually reported; the incorrect stoichiometric ratio leads to a larger distortion of the corner-sharing triangular arrangement of magnetic ions Cr(+5) with S = 1/2 in the Kagome lattice. In addition, our study reveals that there exists another frustration pathway which is an asymmetric zigzag spin ladder along the directions [211], [12–1], and [1–1–1], in which the Cr–Cr distances are shorter than in the Kagome layers. American Chemical Society 2022-10-03 2022-10-17 /pmc/articles/PMC9580002/ /pubmed/36191153 http://dx.doi.org/10.1021/acs.inorgchem.2c01831 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Alshalawi, Dhoha R. Alonso, José M. Landa-Cánovas, Angel R. de la Presa, Patricia Coexistence of Two Spin Frustration Pathways in the Quantum Spin Liquid Ca(10)Cr(7)O(28) |
title | Coexistence
of Two Spin Frustration Pathways in the
Quantum Spin Liquid Ca(10)Cr(7)O(28) |
title_full | Coexistence
of Two Spin Frustration Pathways in the
Quantum Spin Liquid Ca(10)Cr(7)O(28) |
title_fullStr | Coexistence
of Two Spin Frustration Pathways in the
Quantum Spin Liquid Ca(10)Cr(7)O(28) |
title_full_unstemmed | Coexistence
of Two Spin Frustration Pathways in the
Quantum Spin Liquid Ca(10)Cr(7)O(28) |
title_short | Coexistence
of Two Spin Frustration Pathways in the
Quantum Spin Liquid Ca(10)Cr(7)O(28) |
title_sort | coexistence
of two spin frustration pathways in the
quantum spin liquid ca(10)cr(7)o(28) |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9580002/ https://www.ncbi.nlm.nih.gov/pubmed/36191153 http://dx.doi.org/10.1021/acs.inorgchem.2c01831 |
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