Photon-Induced Magnetization Reversal in Single-Molecule Magnets

Abstract

We use millimeter wave radiation to manipulate the populations of the energy levels of a single crystal molecular magnet Fe8. When a continuous wave radiation is in resonance with the transitions from the ground state to the first excited state, the equilibrium magnetization exhibits a dip. The position of this dip varies linearly with the radiation frequency. Our results provide a lower bound of 0.17 ns for transverse relaxation time and suggest the possibility that single-molecule magnets might be utilized for quantum computation.

16 pages, 3 figures

References in corpus (8)

• Quantum Computing in Molecular Magnets
• Switching of magnetization by non-linear resonance studied in single nanoparticles
• Thermally Activated Resonant Magnetization Tunneling in Molecular Magnets: Mn_12Ac and others
• Observation of the distribution of molecular spin states by resonant quantum tunneling of the magnetization
• Effects of D-strain, g-strain, and dipolar interactions on EPR linewidths of the molecular magnets Fe8 and Mn12
• Detailed single crystal EPR lineshape measurements for the single molecule magnets Fe8Br and Mn12-ac
• Photon-assisted tunneling in a Fe8 Single-Molecule Magnet
• Resonant photon absorption in the low spin molecule V15

Cited by in corpus (11)

• Single-molecule Nanomagnets
• Magnetization dynamics in the single-molecule magnet Fe8 under pulsed microwave irradiation
• Resonant photon absorption and hole burning in Cr7Ni antiferromagnetic rings
• Spin Entanglement in supramolecular structures
• Pump-Probe Experiments on the Single-Molecule Magnet Fe8 : Measurement of Excited Level Lifetimes
• Experimental Upper Bound on Superradiance Emission from Mn12 Acetate
• Non-equilibrium Magnetization Dynamics in the Fe_8 Single-Molecule Magnet Induced by High-Intensity Microwave Radiation
• Photon-Induced Magnetization Changes in Single-Molecule Magnets
• Energy Level Lifetimes in the Single-Molecule Magnet Fe_8 : Experiments and Simulations
• Measurement of Magnetization Dynamics in Single-Molecule Magnets Induced by Pulsed Millimeter-Wave Radiation
• Direct Spectroscopic Observation of Berry Phase Interference in the Ni${}_4$ Single-Molecule Magnet