Phys. Rev. Lett. 27, 383–386 (1971)Exotic Negative Carriers in Liquid HeliumReceived 23 June 1971; published in the issue dated 16 August 1971 We have confirmed the existence of a new negative carrier of high mobility in superfluid helium, reported by Doake and Gribbon, and determined its zero-field mobility. We suggest that it may be the negative helium ion in a small cavity in the liquid. A series of carriers with mobilities between that of the "fast" and the "normal" (electron bubble) carrier is also shown to exist. © 1971 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.27.383
DOI:
10.1103/PhysRevLett.27.383
PACS:
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