NDLI: Electron quantum on-off switching in mercury triatomic clusters

Content Provider	IEEE Xplore Digital Library
Author	Sarantopoulou, E. Cefalas, A.C. Vourdas, A.
Copyright Year	2000
Description	Author affiliation: Theor. & Phys. Chem. Inst., Nat. Hellenic Res. Found., Athens, Greece (Sarantopoulou, E.; Cefalas, A.C.)
Abstract	Electron on-off switching in mercury triatomic clusters was demonstrated from quantum beat experiments. For any excited electronic state of volcanic shape, the energy levels split due to the translational symmetry within the potential energy surface, in a symmetric and an anti-symmetric component. The amount of the energy splitting depends on the energy position from the top of the barrier of the volcanic shape. The energy splitting is estimated from quantum beat experiments. We have used a molecular fluorine laser at 157 nm to form molecular triatomic clusters in their excited electronic state. From the period of the quantum interference during de-excitation at 385, 445 and 485 nm it is estimated that the splitting of the energy levels near the barrier is /spl sim/10/sup -5/ eV. Therefore by selective excitation of the energy levels, modulation of the electron tunneling probability in volcanic barriers and hence quantum on-off switching operation is taking place.
File Size	88187
File Format	PDF
ISBN	0780363183
DOI	10.1109/IQEC.2000.907917
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-09-10
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrons Energy states Laser excitation Chemistry Postal services Potential energy Interference Tunneling
Content Type	Text
Resource Type	Article

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