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Ashtree, JM, Borilović, I, Vignesh, KR, Swain, A, Hamilton, SH, Whyatt, YL, Benjamin, SL 
ORCID: https://orcid.org/0000-0002-5038-1599, Phonsri, W, Forsyth, CM, Wernsdorfer, W, Soncini, A, Rajaraman, G, Langley, SK and Murray, K,
2020.
Tuning the ferrotoroidic coupling and magnetic hysteresis in double-triangle complexes {Dy3MIIIDy3} via the MIII-linker.
European Journal of Inorganic Chemistry.
ISSN 1434-1948
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Abstract
We present the syntheses, structures, magnetic data and theoretical analyses for two families of heptanuclear clusters, wherein two staggered dysprosium(III) triangles are linked by various M(III) d‐/p‐block ions. The families differ in the counter‐anion and are of formulae [DyIII6MIII(OH)8(o‐tol)12(MeOH)5(NO3)]∙4MeOH and [DyIII6MIII(OH)8(o‐tol)12(MeOH)6]Cl·6MeOH (M = Cr, Mn, Fe, Co, Al; o‐tol = o‐toluate). We find that variation of the central metal ion M is crucial in tuning the toroidal moments on the triangular units, with diamagnetic M linking ions enhancing the ferrotoroidic coupling. By detailed simulation and analysis of various magnetic measurements, including sub‐kelvin microSquid hysteresis loops, we identified the specific signature of the M linking ions’ modulation of toroidal properties, including the mechanism whereby anisotropic, paramagnetic M ions lead to hysteresis profiles with larger remnant magnetisations and broader coercive fields.
| Item Type: | Journal article |
|---|---|
| Publication Title: | European Journal of Inorganic Chemistry |
| Creators: | Ashtree, J.M., Borilović, I., Vignesh, K.R., Swain, A., Hamilton, S.H., Whyatt, Y.L., Benjamin, S.L., Phonsri, W., Forsyth, C.M., Wernsdorfer, W., Soncini, A., Rajaraman, G., Langley, S.K. and Murray, K. |
| Publisher: | Wiley |
| Date: | 4 December 2020 |
| ISSN: | 1434-1948 |
| Identifiers: | Number Type 10.1002/ejic.202001082 DOI 1394615 Other |
| Divisions: | Schools > School of Science and Technology |
| Record created by: | Jonathan Gallacher |
| Date Added: | 15 Dec 2020 12:40 |
| Last Modified: | 04 Dec 2021 03:00 |
| Related URLs: | |
| URI: | https://irep.ntu.ac.uk/id/eprint/41867 |
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