@article{https://doi.org/10.1002/anie.202017116,
author = {Kintzel, Benjamin and Fittipaldi, Maria and Böhme, Michael and Cini, Alberto and Tesi, Lorenzo and Buchholz, Axel and Sessoli, Roberta and Plass, Winfried},
title = {Spin–Electric Coupling in a Cobalt(II)-Based Spin Triangle Revealed by Electric-Field-Modulated Electron Spin Resonance Spectroscopy},
journal = {Angewandte Chemie International Edition},
volume = {60},
number = {16},
pages = {8832-8838},
keywords = {cobalt, electron spin resonance spectroscopy, magnetic properties, spin–electric effect, spintronics},
doi = {https://doi.org/10.1002/anie.202017116},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.202017116},
eprint = {https://onlinelibrary.wiley.com/doi/pdf/10.1002/anie.202017116},
abstract = {Abstract A cobalt(II)-based spin triangle shows a significant spin–electric coupling. [Co3(pytag)(py)6Cl3]ClO4⋅3 py crystallizes in the acentric monoclinic space group P21. The intra-triangle antiferromagnetic interaction, of the order of ca. −15 cm−1 (H=−JSaSb), leads to spin frustration. The two expected energy-degenerate ground doublets are, however, separated by a few wavenumbers, as a consequence of magnetic anisotropy and deviations from threefold symmetry. The Co3 planes of symmetry-related molecules are almost parallel, allowing for the determination of the spin–electric properties of single crystals by EFM-ESR spectroscopy. The spin–electric effect detected when the electric field is applied in the Co3 plane was revealed by a shift in the resonance field. It was quantified as ΔgE/E=0.11×10−9 m V−1, which in terms of frequency corresponds to approximately 0.3 Hz m V−1. This value is comparable to what was determined for a Cu3 triangle despite the antiferromagnetic interaction being 20 times larger for the latter.},
year = {2021}
}