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Vaknin, D., Garlea, V. O., Demmel, F., Mamontov, E., Nojiri, H., Martin, C., Chiorescu, I., Qiu, Y., Kögerler, P., Fielden, J. 
ORCID: https://orcid.org/0000-0001-5963-7792, Engelhardt, L., Rainey, C. and Luban, M.
(2010)
Level crossings and zero-field splitting in the {Cr8}-cubane spin cluster studied using inelastic neutron scattering and magnetization.
Journal of Physics: Condensed Matter, 22 (46).
ISSN 0953-8984
Abstract
Inelastic neutron scattering (INS) in variable magnetic field and high-field magnetization measurements in the millikelvin temperature range were performed to gain insight into the low-energy magnetic excitation spectrum and the field-induced level crossings in the molecular spin cluster {Cr8}-cubane. These complementary techniques provide consistent estimates of the lowest level-crossing field. The overall features of the experimental data are explained using an isotropic Heisenberg model, based on three distinct exchange interactions linking the eight CrIII paramagnetic centers (spins s = 3/2), that is supplemented with a relatively large molecular magnetic anisotropy term for the lowest S = 1 multiplet. It is noted that the existence of the anisotropy is clearly evident from the magnetic field dependence of the excitations in the INS measurements, while the magnetization measurements are not sensitive to its effects.
| Item Type: | Article |
|---|---|
| Faculty \ School: | Faculty of Science > School of Chemistry |
| UEA Research Groups: | Faculty of Science > Research Groups > Energy Materials Laboratory Faculty of Science > Research Groups > Chemistry of Materials and Catalysis Faculty of Science > Research Groups > Chemistry of Light and Energy |
| Depositing User: | Users 2731 not found. |
| Date Deposited: | 17 Oct 2012 09:36 |
| Last Modified: | 02 May 2024 10:30 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/39945 |
| DOI: | 10.1088/0953-8984/22/46/466001 |
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