Direct Observation of Quantum Coherence in Single-Molecule Magnets

Details Direct Observation of Quantum Coherence in Single-Molecule Magnets Direct Observation of Quantum Coherence in Single-Molecule Magnets

2008-07-02

arxiv.org/abs/0807.0303v3

Phys. Rev. Lett. 101, 147203 (2008)

Physics

Condensed Matter

Materials Science

5 Pages, 4 Figures, final version published in PRL

Scientific paper

10.1103/PhysRevLett.101.147203

Direct evidence of quantum coherence in a single-molecule magnet in frozen solution is reported with coherence times as long as T2 = 630 ns. We can strongly increase the coherence time by modifying the matrix in which the single-molecule magnets are embedded. The electron spins are coupled to the proton nuclear spins of both the molecule itself and interestingly, also to those of the solvent. The clear observation of Rabi oscillations indicates that we can manipulate the spin coherently, an essential prerequisite for performing quantum computations.

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