The low-temperature spin dynamics of a Fe-8 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 nonlinear above a relatively low-power threshold. Heating due to phonon emission, spin-spin interactions, and coherent emission/absorption of photons might lead to the observed nonlinearity. These results are of importance if such systems are to be used as quantum computers.

Photon-assisted tunneling in a Fe-8 single-molecule magnet / L. Sorace; W. Wernsdorfer; C. Thirion; A. L. Barra; M. Pacchioni; D. Mailly; B. Barbara. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - STAMPA. - 68:(2003), pp. 220407-1-220407-4. [10.1103/PhysRevB.68.220407]

Photon-assisted tunneling in a Fe-8 single-molecule magnet

SORACE, LORENZO;
2003

Abstract

The low-temperature spin dynamics of a Fe-8 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 nonlinear above a relatively low-power threshold. Heating due to phonon emission, spin-spin interactions, and coherent emission/absorption of photons might lead to the observed nonlinearity. These results are of importance if such systems are to be used as quantum computers.
2003
68
220407-1
220407-4
L. Sorace; W. Wernsdorfer; C. Thirion; A. L. Barra; M. Pacchioni; D. Mailly; B. Barbara
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/344902
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