Direct Observation of Quantum Coherence in Single-Molecule Magnets

Abstract

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.

5 Pages, 4 Figures, final version published in PRL

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• Will spin-relaxation times in molecular magnets permit quantum information processing?
• Quantum Coherence in an Exchange-Coupled Dimer of Single-Molecule Magnets
• Theory of the spin bath
• Rare-earth solid-state qubits
• Pair-wise decoherence in coupled spin qubit networks
• Quantum Coherence between High Spin Superposition States of Single Molecule Magnet Ni${}_4$
• Mesoscopic quantum coherence in antiferromagnetic molecular clusters
• Resonant photon absorption and hole burning in Cr7Ni antiferromagnetic rings
• Pump-Probe Experiments on the Single-Molecule Magnet Fe8 : Measurement of Excited Level Lifetimes
• Radiation- and Phonon-Bottleneck-Induced Tunneling in the Fe8 Single-Molecule Magnet
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Cited by in corpus (47)

• Decoherence in Crystals of Quantum Molecular Magnets
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• Single-molecule Nanomagnets
• A scalable architecture for quantum computation with molecular nanomagnets
• Coherent Manipulation and Decoherence of S=10 Single-Molecule Magnets
• Coupling single molecule magnets to quantum circuits
• Molecular nanomagnets as quantum simulators
• Band gap prediction for large organic crystal structures with machine learning
• Landau-Zener tunneling of a single Tb3+ magnetic moment allowing the electronic read-out of a nuclear spin
• Hyperfine-induced decoherence in triangular spin-cluster qubits
• Magnetic Coupling and Single-Ion Anisotropy in Surface-Supported Mn-based Metal-Organic Networks
• Spin-Orbit Qubits of Rare-Earth-Metal Ions in Axially Symmetric Crystal Fields
• Quantum phase interference in a fullerene-based molecular qutrit
• Decoherence window and electron-nuclear cross-relaxation in the molecular magnet V 15
• Collective coupling of a macroscopic number of single-molecule magnets with a microwave cavity mode
• Quantized antiferromagnetic spin waves in the molecular Heisenberg ring CsFe${}_8$
• Spin Entanglement in supramolecular structures
• Coherent spin dynamics in gadolinium-doped CaWO4 crystal
• Magnetization and spin dynamics of the spin S=1/2 hourglass nanomagnet Cu5(OH)2(NIPA)4*10H2O
• Toward long-range entanglement between electrically driven single-molecule magnets
• Quantum Tunneling of the Magnetic Moment in the S/F/S Josephson ${\mathbf{\phi }}_0$-Junction
• Large spatial Schrodinger cat using a levitated ferrimagnetic nanoparticle
• Dissipative dynamics in a quantum bistable system: Crossover from weak to strong damping
• Magnetic Molecule on a Microcantilever: Quantum Magneto-mechanical Oscillations
• Probing molecular spin clusters by local measurements
• Slow Spin Relaxation in Single Endohedral Fullerene Molecules
• Skyrmion Helicity: Quantization and Quantum Tunneling Effects
• Ultrafast control of nuclear spins using only microwave pulses: towards switchable solid-state quantum gates
• Observation of tunneling-assisted highly forbidden single-photon transitions in a Ni${}_4$ single-molecule magnet
• Coherent manipulation of dipolar coupled spins in an anisotropic environment
• Decoherence of intermolecular entanglement in exchange-coupled nanomagnets
• On the size of linear superpositions in molecular nanomagnets
• Spin wave excitations of magnetic metalorganic materials
• Level crossings and zero-field splitting in the \{Cr${}_8$\}-cubane spin-cluster by inelastic neutron scattering and magnetization studies
• Designing adiabatic time-evolution from high frequency bichromatic sources
• Precision ESR Measurements of Transverse Anisotropy in the Single-molecule Magnet Ni${}_4$
• Anisotropy of the molecular magnet V${}_{15}$ spin Hamiltonian detected by high-field electron spin resonance
• Manipulating spins of magnetic molecules: Hysteretic behavior with respect to bias voltage
• Memory and aging effects in interacting sub-10nm nanomagnets with large uniaxial anisotropy
• Resonant Spin Tunneling in Randomly Oriented Nanospheres of Mn${}_{12}$ Acetate
• Quantum Forces in Molecular Magnets
• Experimental protection of the coherence of a molecular qubit exceeding a millisecond
• NMR and ${\mu }^{+}$SR detection of unconventional spin dynamics in Er(trensal) and Dy(trensal) molecular magnets
• Stable two-dimensional ferromagnets made of regular single-layered lattices of single-molecule nanomagnets on substrates