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AIP conference proceedings

Heating Rates and Enhanced Equilibration Rates with Strongly Correlated Ions in a Penning-Malmberg Trap

J. J. Bollinger, M. J. Delaney, Taro Hasegawa, Daniel H. E. Dubin

Published Jan 1, 2006• 0 citations
Publisher
DOI
10.1063/1.2387923

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Between 104 and 106 9Be+ ions are trapped in a Penning trap. The ions are laser‐cooled to ∼millikelvin temperatures, where they form ion crystals. This system is an example of a strongly coupled one‐component plasma. By means of Doppler laser spectroscopy we have measured the temperature and heating rate of the plasma. Initially the heating rate is low, 60 ± 40 mK/s, but after about 100 ms the plasma heats up rapidly to a few kelvin. The onset of the rapid heating coincides with the solid‐liquid phase transition.