Rings among the rotons : measurements of the vortex nucleation rate for negative ions whose drift velocities are limited by roton emission.

Physics

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Rings among the rotons : measurements of the vortex nucleation rate for negative ions whose drift velocities are limited by roton emission. / Allum, D. R.; McClintock, Peter V. E.
In: Journal de Physique, Vol. Colloq, 08.1978, p. 174-175.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Bibtex

@article{7956c71c066b4d53a3be050d324458e0,

title = "Rings among the rotons : measurements of the vortex nucleation rate for negative ions whose drift velocities are limited by roton emission.",

abstract = "We have measured vortex ring nucleation rates nu for negative ions moving in He II under the influence of electric fields 0.8 < E < 12 kV/cm, for temperatures 0.4 < T < 0.6 K and a pressure of 25 bar. For E > 5 kV/cm, the experimental data are well described by a theory due to Bowley. An anomalous dependence of nu on T found at lower lower E is attributed to the influence of isotopic impurities.",

author = "Allum, {D. R.} and McClintock, {Peter V. E.}",

note = "Proceedings of the 15th International Conference on Low Temperature Physics, Grenoble, 1978.",

year = "1978",

month = aug,

language = "English",

volume = "Colloq",

pages = "174--175",

journal = "Journal de Physique",

issn = "0302-0738",

publisher = "Societe Francaise De Physique",

}

RIS

TY - JOUR

T1 - Rings among the rotons : measurements of the vortex nucleation rate for negative ions whose drift velocities are limited by roton emission.

AU - Allum, D. R.

AU - McClintock, Peter V. E.

N1 - Proceedings of the 15th International Conference on Low Temperature Physics, Grenoble, 1978.

PY - 1978/8

Y1 - 1978/8

N2 - We have measured vortex ring nucleation rates nu for negative ions moving in He II under the influence of electric fields 0.8 < E < 12 kV/cm, for temperatures 0.4 < T < 0.6 K and a pressure of 25 bar. For E > 5 kV/cm, the experimental data are well described by a theory due to Bowley. An anomalous dependence of nu on T found at lower lower E is attributed to the influence of isotopic impurities.

AB - We have measured vortex ring nucleation rates nu for negative ions moving in He II under the influence of electric fields 0.8 < E < 12 kV/cm, for temperatures 0.4 < T < 0.6 K and a pressure of 25 bar. For E > 5 kV/cm, the experimental data are well described by a theory due to Bowley. An anomalous dependence of nu on T found at lower lower E is attributed to the influence of isotopic impurities.

M3 - Journal article

VL - Colloq

SP - 174

EP - 175

JO - Journal de Physique

JF - Journal de Physique

SN - 0302-0738

ER -

Research