Exchange constants for a V15 magnetic molecular nanocluster

Kostyuchenko, V. V.; Zvezdin, A. K.

doi:10.1134/1.1575332

Cited by 5 publications

(5 citation statements)

References 11 publications

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“…At low temperatures the hexagons are quenched in a S = 0 ground state due to strong AF interactions. [59,60] We are then left with the three weakly coupled spin-1/2 centers on the triangle. This weak coupling is AF, and for an equilateral triangle this leads to a frustrated ground state with two degenerate S = 1/2 trimer states and an S = 3/2 first excited state.…”

Section: Frustration In V 15mentioning

confidence: 99%

Single‐Molecule Magnets Under Pressure

Bircher

Chaboussant

Dobe

et al. 2006

Adv Funct Materials

149

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We feature our recent work in the field of single‐molecule magnets (SMMs) using inelastic neutron scattering (INS). The term “pressure” in the title has a triple meaning. First, there is the expectation from research‐funding agencies and the public to make some significant steps towards applications. Second, the synthesis of new compounds and the applications of physical techniques for their understanding are being pushed to their limits. And third, by applying hydrostatic pressure, valuable insight into the mechanisms behind the SMM phenomena can be gained. Examples from our research have been taken to illustrate these points. After a brief introduction to the technique, the strength of INS for the accurate determination of exchange and anisotropy interactions in SMMs is highlighted. We hope to demonstrate that, by pushing INS measurements to their limits, i.e., using the best available neutron sources and instrumentation, combined with high quality samples, new insights into the relevant physical processes in SMMs can be gained.

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Section: Frustration In V 15mentioning

confidence: 99%

Single‐Molecule Magnets Under Pressure

Bircher

Chaboussant

Dobe

et al. 2006

Adv Funct Materials

149

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“…These differences seem to suggest that a perturbation approach 29 for the DM interaction may not be sufficiently accurate for quantitative purposes. 44 Finally, we study a parameter set obtained from a firstprinciples calculation 18 J = − 809 K, JЈ = − 120 K,…”

Section: B Energy-level Diagramsmentioning

confidence: 99%

Dzyaloshinskii-Moriya interactions and adiabatic magnetization dynamics in molecular magnets

et al. 2004

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A microscopic model of the molecular magnet V 15 is used to study mechanisms for the adiabatic change of the magnetization in time-dependent magnetic fields. The effects of the Dzyaloshinskii-Moriya interaction, the most plausible source for the energy-level repulsions that lead to adiabatic changes of the magnetization, are studied in detail. We find that the energy-level repulsions that result from this interaction exhibit a strong dependence on the direction of the applied field. We also discuss the role of magnetic anisotropy in the molecule Mn 12-acetate.

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“…[41]. These differences seem to suggest that a perturbation approach for the DMI has to be applied with great care [46]. In Fig.…”

Section: B Vanadium Complex: V15mentioning

confidence: 99%