Electric response induced by second sound in superfluid helium

Hideki Yayama, Yugo Nishimura, Hiroka Uchiyama, Hiroshi Kawai, Jean Paul Van Woensel, Ali G. Hafez

研究成果: ジャーナルへの寄稿学術誌査読

8 被引用数 (Scopus)

抄録

The electric response of superfluid helium was measured when a second sound standing wave was generated in a resonator cavity. The results were qualitatively in agreement with that of other research laboratories, but the normalized signal strength was one order of magnitude larger reflecting the difference in electrode structure. The temporal phase difference between the electric oscillation and the temperature oscillation was measured and compared with the analysis. The result excluded a hypothesis that the electric response was induced by the velocities of the relative motion of normal and superfluid components of liquid helium. We suggested a hypothetical explanation of the electric response based on the oscillation of chemical potential of electrons in helium atoms. The effect of an external dc electric field was examined and no effect was observed. The heater power dependence of the temperature oscillation and the electric oscillation showed the qualitative agreement with the original experiment.

本文言語英語
ページ(範囲)1386-1393
ページ数8
ジャーナルFizika Nizkikh Temperatur
44
10
出版ステータス出版済み - 10月 2018

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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