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Hysteresis loops and adiabatic Landau-Zener-Stuckelberg transitions in the magnetic molecule {V6}
journal contribution
posted on 2023-02-24, 09:28 authored by Ioannis RousochatzakisIoannis Rousochatzakis, Y. Ajiro, H. Mitamura, P. Kogerler, Marshall LubanWe have observed hysteresis loops and abrupt magnetization steps in the magnetic molecule {V6}, where each molecule comprises a pair of identical spin triangles, in the temperature range 1-5 K for external magnetic fields B with sweep rates of several Tesla per millisecond executing a variety of closed cycles. The hysteresis loops are accurately reproduced using a generalization of the Bloch equation based on direct one-phonon transitions between the instantaneous Zeeman-split levels of the ground state (an S = 1/2 doublet) of each spin triangle. The magnetization steps occur for B ≈ 0, and they are explained in terms of adiabatic Landau-Zener-Stückelberg transitions between the lowest magnetic energy levels as modified by an intertriangle anisotropic exchange of order 0.4 K. © 2005 The American Physical Society.
History
School
- Science
Department
- Physics
Published in
Physical Review LettersVolume
94Issue
14Citation
ROUSOCHATZAKIS, I. ... et al., 2005. Hysteresis loops and adiabatic Landau-Zener-Stuckelberg transitions in the magnetic molecule {V6}. Physical Review Letters, 94: 147204.Publisher
© American Physical Society (APS)Version
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2005Notes
This paper was accepted for publication in the journal Physical Review Letters and the definitive published version is available at https://doi.org/10.1103/PhysRevLett.94.147204ISSN
0031-9007eISSN
1079-7114Publisher version
Language
- en