Heat transfer in a two-dimensional crystalline complex (dusty) plasma.
Heating and heat transfer were studied in a two-dimensional crystalline complex plasma at the kinetic level. The lattice was formed of microspheres levitated in a plasma sheath. One half of the crystal was heated anisotropically to obtain higher kinetic temperatures in one direction and heat conduction was observed in real time. It was found that the longitudinal phonons conduct heat better than the transverse. The thermometric conductivity coefficient was measured to be 53 mm2/s for longitudinal heating and 30 mm2/s for transverse heating. Heat decay lengths and energy exchange times between the temperature components were determined.
Nunomura
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S
CIPS, Max-Planck-Institut für Extraterrestrische Physik, D-85740 Garching, Germany.
Samsonov
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D
Zhdanov
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S
Morfill
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G