Photon-assisted tunneling in a Fe8 Single-Molecule Magnet

Abstract

The low temperature spin dynamics of a Fe8 Single-Molecule Magnet was studied under circularly polarized electromagnetic radiation allowing us to establish clearly photon-assisted tunneling. This effect, while linear at low power, becomes highly non-linear above a relatively low power threshold. This non-linearity is attributed to the nature of the coupling of the sample to the thermostat.These results are of great importance if such systems are to be used as quantum computers.

4 pages, 4 figures

References in corpus (11)

• Quantum Computing in Molecular Magnets
• Low-Temperature Quantum Relaxation in a System of Magnetic Nanomolecules
• Observation of the distribution of molecular spin states by resonant quantum tunneling of the magnetization
• Nuclear spin driven quantum relaxation in LiY_0.998Ho_0.002F_4
• Nonadiabatic Landau Zener tunneling in Fe_8 molecular nanomagnets
• Spin-spin cross-relaxation in single-molecule magnets
• Detailed single crystal EPR lineshape measurements for the single molecule magnets Fe8Br and Mn12-ac
• Crossover between Thermally Assisted and Pure Quantum Tunneling in Molecular Magnet Mn12-Acetate
• Superradiance from crystals of molecular nanomagnets
• Quantum computing of molecular magnet Mn${}_{12}$
• Superradiation from Crystals of High-Spin Molecular Nanomagnets

Cited by in corpus (23)

• Single-molecule Nanomagnets
• Quantum Coherence between High Spin Superposition States of Single Molecule Magnet Ni${}_4$
• Landau-Zener transitions in qubits controlled by electromagnetic fields
• Magnetization dynamics in the single-molecule magnet Fe8 under pulsed microwave irradiation
• Photon-Induced Magnetization Reversal in Single-Molecule Magnets
• 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
• Non-equilibrium Magnetization Dynamics in the Fe_8 Single-Molecule Magnet Induced by High-Intensity Microwave Radiation
• Experimental Upper Bound on Superradiance Emission from Mn12 Acetate
• Low temperature microwave emission from molecular clusters
• A combined first-principles and thermodynamic approach to M-Nitronyl Nitroxide (M=Co, Mn) spin helices
• Photon-Induced Magnetization Changes in Single-Molecule Magnets
• Field sweep rate dependence of the coercive field of single-molecule magnets: a classical approach with applications to the quantum regime
• Coherent radiation by molecular magnets
• Observation of tunneling-assisted highly forbidden single-photon transitions in a Ni${}_4$ single-molecule magnet
• Collective electromagnetic relaxation in crystals of molecular magnets
• Energy Level Lifetimes in the Single-Molecule Magnet Fe_8 : Experiments and Simulations
• How to cross an energy barrier at zero Kelvin without tunneling effect
• Electromagnetic radiation emanating from the molecular nanomagnet Fe8
• Electron Spin Resonance of Defects in Spin Chains. o-(DMTTF)2X : a versatile system behaving like molecular magnet
• Measurement of Magnetization Dynamics in Single-Molecule Magnets Induced by Pulsed Millimeter-Wave Radiation
• Dynamical quenching of tunneling in molecular magnets