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Partitioning the Two-Leg Spin Ladder in Ba(2)Cu(1 – x)Zn(x)TeO(6): From Magnetic Order through Spin-Freezing to Paramagnetism

[Image: see text] Ba(2)CuTeO(6) has attracted significant attention as it contains a two-leg spin ladder of Cu(2+) cations that lies in close proximity to a quantum critical point. Recently, Ba(2)CuTeO(6) has been shown to accommodate chemical substitutions, which can significantly tune its magnetic...

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Autores principales: Pughe, Charlotte, Mustonen, Otto H. J., Gibbs, Alexandra S., Lee, Stephen, Stewart, Rhea, Gade, Ben, Wang, Chennan, Luetkens, Hubertus, Foster, Anna, Coomer, Fiona C., Takagi, Hidenori, Cussen, Edmund J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10100530/
https://www.ncbi.nlm.nih.gov/pubmed/37063596
http://dx.doi.org/10.1021/acs.chemmater.2c02939
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author Pughe, Charlotte
Mustonen, Otto H. J.
Gibbs, Alexandra S.
Lee, Stephen
Stewart, Rhea
Gade, Ben
Wang, Chennan
Luetkens, Hubertus
Foster, Anna
Coomer, Fiona C.
Takagi, Hidenori
Cussen, Edmund J.
author_facet Pughe, Charlotte
Mustonen, Otto H. J.
Gibbs, Alexandra S.
Lee, Stephen
Stewart, Rhea
Gade, Ben
Wang, Chennan
Luetkens, Hubertus
Foster, Anna
Coomer, Fiona C.
Takagi, Hidenori
Cussen, Edmund J.
author_sort Pughe, Charlotte
collection PubMed
description [Image: see text] Ba(2)CuTeO(6) has attracted significant attention as it contains a two-leg spin ladder of Cu(2+) cations that lies in close proximity to a quantum critical point. Recently, Ba(2)CuTeO(6) has been shown to accommodate chemical substitutions, which can significantly tune its magnetic behavior. Here, we investigate the effects of substitution for non-magnetic Zn(2+) impurities at the Cu(2+) site, partitioning the spin ladders. Results from bulk thermodynamic and local muon magnetic characterization on the Ba(2)Cu(1 – x)Zn(x)TeO(6) solid solution (0 ≤ x ≤ 0.6) indicate that Zn(2+) partitions the Cu(2+) spin ladders into clusters and can be considered using the percolation theory. As the average cluster size decreases with increasing Zn(2+) substitution, there is an evolving transition from long-range order to spin-freezing as the critical cluster size is reached between x = 0.1 to x = 0.2, beyond which the behavior became paramagnetic. This demonstrates well-controlled tuning of the magnetic disorder, which is highly topical across a range of low-dimensional Cu(2+)-based materials. However, in many of these cases, the chemical disorder is also relatively strong in contrast to Ba(2)CuTeO(6) and its derivatives. Therefore, Ba(2)Cu(1 – x)Zn(x)TeO(6) provides an ideal model system for isolating the effect of defects and segmentation in low-dimensional quantum magnets.
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spelling pubmed-101005302023-04-14 Partitioning the Two-Leg Spin Ladder in Ba(2)Cu(1 – x)Zn(x)TeO(6): From Magnetic Order through Spin-Freezing to Paramagnetism Pughe, Charlotte Mustonen, Otto H. J. Gibbs, Alexandra S. Lee, Stephen Stewart, Rhea Gade, Ben Wang, Chennan Luetkens, Hubertus Foster, Anna Coomer, Fiona C. Takagi, Hidenori Cussen, Edmund J. Chem Mater [Image: see text] Ba(2)CuTeO(6) has attracted significant attention as it contains a two-leg spin ladder of Cu(2+) cations that lies in close proximity to a quantum critical point. Recently, Ba(2)CuTeO(6) has been shown to accommodate chemical substitutions, which can significantly tune its magnetic behavior. Here, we investigate the effects of substitution for non-magnetic Zn(2+) impurities at the Cu(2+) site, partitioning the spin ladders. Results from bulk thermodynamic and local muon magnetic characterization on the Ba(2)Cu(1 – x)Zn(x)TeO(6) solid solution (0 ≤ x ≤ 0.6) indicate that Zn(2+) partitions the Cu(2+) spin ladders into clusters and can be considered using the percolation theory. As the average cluster size decreases with increasing Zn(2+) substitution, there is an evolving transition from long-range order to spin-freezing as the critical cluster size is reached between x = 0.1 to x = 0.2, beyond which the behavior became paramagnetic. This demonstrates well-controlled tuning of the magnetic disorder, which is highly topical across a range of low-dimensional Cu(2+)-based materials. However, in many of these cases, the chemical disorder is also relatively strong in contrast to Ba(2)CuTeO(6) and its derivatives. Therefore, Ba(2)Cu(1 – x)Zn(x)TeO(6) provides an ideal model system for isolating the effect of defects and segmentation in low-dimensional quantum magnets. American Chemical Society 2023-03-22 /pmc/articles/PMC10100530/ /pubmed/37063596 http://dx.doi.org/10.1021/acs.chemmater.2c02939 Text en © 2023 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 Pughe, Charlotte
Mustonen, Otto H. J.
Gibbs, Alexandra S.
Lee, Stephen
Stewart, Rhea
Gade, Ben
Wang, Chennan
Luetkens, Hubertus
Foster, Anna
Coomer, Fiona C.
Takagi, Hidenori
Cussen, Edmund J.
Partitioning the Two-Leg Spin Ladder in Ba(2)Cu(1 – x)Zn(x)TeO(6): From Magnetic Order through Spin-Freezing to Paramagnetism
title Partitioning the Two-Leg Spin Ladder in Ba(2)Cu(1 – x)Zn(x)TeO(6): From Magnetic Order through Spin-Freezing to Paramagnetism
title_full Partitioning the Two-Leg Spin Ladder in Ba(2)Cu(1 – x)Zn(x)TeO(6): From Magnetic Order through Spin-Freezing to Paramagnetism
title_fullStr Partitioning the Two-Leg Spin Ladder in Ba(2)Cu(1 – x)Zn(x)TeO(6): From Magnetic Order through Spin-Freezing to Paramagnetism
title_full_unstemmed Partitioning the Two-Leg Spin Ladder in Ba(2)Cu(1 – x)Zn(x)TeO(6): From Magnetic Order through Spin-Freezing to Paramagnetism
title_short Partitioning the Two-Leg Spin Ladder in Ba(2)Cu(1 – x)Zn(x)TeO(6): From Magnetic Order through Spin-Freezing to Paramagnetism
title_sort partitioning the two-leg spin ladder in ba(2)cu(1 – x)zn(x)teo(6): from magnetic order through spin-freezing to paramagnetism
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10100530/
https://www.ncbi.nlm.nih.gov/pubmed/37063596
http://dx.doi.org/10.1021/acs.chemmater.2c02939
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