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Magnetic Properties of Quasi-One-Dimensional Lanthanide Calcium Oxyborates Ca(4)LnO(BO(3))(3)

[Image: see text] This study examines the lanthanide calcium oxyborates Ca(4)LnO(BO(3))(3) (Ln = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Y, Er, Yb). The reported monoclinic structure (space group Cm) was confirmed using powder X-ray diffraction. The magnetic Ln(3+) ions are situated in well-separated ch...

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Autores principales: Kelly, Nicola D., Dutton, Siân E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7467667/
https://www.ncbi.nlm.nih.gov/pubmed/32525304
http://dx.doi.org/10.1021/acs.inorgchem.0c01098
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author Kelly, Nicola D.
Dutton, Siân E.
author_facet Kelly, Nicola D.
Dutton, Siân E.
author_sort Kelly, Nicola D.
collection PubMed
description [Image: see text] This study examines the lanthanide calcium oxyborates Ca(4)LnO(BO(3))(3) (Ln = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Y, Er, Yb). The reported monoclinic structure (space group Cm) was confirmed using powder X-ray diffraction. The magnetic Ln(3+) ions are situated in well-separated chains parallel to the c axis in a quasi-one-dimensional array. Here we report the first bulk magnetic characterization of Ca(4)LnO(BO(3))(3) using magnetic susceptibility χ(T) and isothermal magnetization M(H) measurements at T ≥ 2 K. With the sole exception of Ca(4)TbO(BO(3))(3), which displays a transition at T = 3.6 K, no magnetic transitions occur above 2 K, and Curie–Weiss analysis indicates antiferromagnetic nearest-neighbor interactions for all samples. Calculation of the magnetic entropy change ΔS(m) indicates that Ca(4)GdO(BO(3))(3) and Ca(4)HoO(BO(3))(3) are viable magnetocaloric materials at liquid helium temperatures in the high-field and low-field regimes, respectively.
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spelling pubmed-74676672020-09-03 Magnetic Properties of Quasi-One-Dimensional Lanthanide Calcium Oxyborates Ca(4)LnO(BO(3))(3) Kelly, Nicola D. Dutton, Siân E. Inorg Chem [Image: see text] This study examines the lanthanide calcium oxyborates Ca(4)LnO(BO(3))(3) (Ln = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Y, Er, Yb). The reported monoclinic structure (space group Cm) was confirmed using powder X-ray diffraction. The magnetic Ln(3+) ions are situated in well-separated chains parallel to the c axis in a quasi-one-dimensional array. Here we report the first bulk magnetic characterization of Ca(4)LnO(BO(3))(3) using magnetic susceptibility χ(T) and isothermal magnetization M(H) measurements at T ≥ 2 K. With the sole exception of Ca(4)TbO(BO(3))(3), which displays a transition at T = 3.6 K, no magnetic transitions occur above 2 K, and Curie–Weiss analysis indicates antiferromagnetic nearest-neighbor interactions for all samples. Calculation of the magnetic entropy change ΔS(m) indicates that Ca(4)GdO(BO(3))(3) and Ca(4)HoO(BO(3))(3) are viable magnetocaloric materials at liquid helium temperatures in the high-field and low-field regimes, respectively. American Chemical Society 2020-06-11 2020-07-06 /pmc/articles/PMC7467667/ /pubmed/32525304 http://dx.doi.org/10.1021/acs.inorgchem.0c01098 Text en Copyright © 2020 American Chemical Society This is an open access article published under a Creative Commons Attribution (CC-BY) License (http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html) , which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
spellingShingle Kelly, Nicola D.
Dutton, Siân E.
Magnetic Properties of Quasi-One-Dimensional Lanthanide Calcium Oxyborates Ca(4)LnO(BO(3))(3)
title Magnetic Properties of Quasi-One-Dimensional Lanthanide Calcium Oxyborates Ca(4)LnO(BO(3))(3)
title_full Magnetic Properties of Quasi-One-Dimensional Lanthanide Calcium Oxyborates Ca(4)LnO(BO(3))(3)
title_fullStr Magnetic Properties of Quasi-One-Dimensional Lanthanide Calcium Oxyborates Ca(4)LnO(BO(3))(3)
title_full_unstemmed Magnetic Properties of Quasi-One-Dimensional Lanthanide Calcium Oxyborates Ca(4)LnO(BO(3))(3)
title_short Magnetic Properties of Quasi-One-Dimensional Lanthanide Calcium Oxyborates Ca(4)LnO(BO(3))(3)
title_sort magnetic properties of quasi-one-dimensional lanthanide calcium oxyborates ca(4)lno(bo(3))(3)
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7467667/
https://www.ncbi.nlm.nih.gov/pubmed/32525304
http://dx.doi.org/10.1021/acs.inorgchem.0c01098
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