Manson, JL;
Curley, SPM;
Williams, RC;
Walker, D;
Goddard, PA;
Ozarowski, A;
Johnson, RD;
... Singleton, J; + view all
(2021)
Controlling Magnetic Anisotropy in a Zero-Dimensional S=1 Magnet Using Isotropic Cation Substitution.
Journal of the American Chemical Society
, 143
(12)
pp. 4633-4638.
10.1021/jacs.0c12516.
Preview |
Text
jacs.0c12516.pdf - Published Version Download (2MB) | Preview |
Abstract
The [Zn_{1–x}_Ni-{x}(HF_{2})(pyz)_{2}]SbF_{6} (x = 0.2; pyz = pyrazine) solid solution exhibits a zero-field splitting (D) that is 22% larger [D = 16.2(2) K (11.3(2) cm^{–1})] than that observed in the x = 1 material [D = 13.3(1) K (9.2(1) cm^{–1)}]. The substantial change in D is accomplished by an anisotropic lattice expansion in the MN_{4} (M = Zn or Ni) plane, wherein the increased concentration of isotropic Zn(II) ions induces a nonlinear variation in M-F and M-N bond lengths. In this, we exploit the relative donor atom hardness, where M-F and M-N form strong ionic and weak coordinate covalent bonds, respectively, the latter being more sensitive to substitution of Ni by the slightly larger Zn(II) ion. In this way, we are able to tune the single-ion anisotropy of a magnetic lattice site by Zn-substitution on nearby sites. This effect has possible applications in the field of single-ion magnets and the design of other molecule-based magnetic systems.
| Type: | Article |
|---|---|
| Title: | Controlling Magnetic Anisotropy in a Zero-Dimensional S=1 Magnet Using Isotropic Cation Substitution |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/jacs.0c12516 |
| Publisher version: | https://doi.org/10.1021/jacs.0c12516 |
| Language: | English |
| Additional information: | © 2021 The Authors. Published by American Chemical Society under a Creative Commons license (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10125922 |
Loading...
Loading...Loading...Loading...Archive Staff Only
 |
View Item |
