| Issue |
J. Phys. Colloques
Volume 39, Number C6, Août 1978
The XVth International Conference on low temperature physicsQuantum Fluids and Solids Superconductivity |
|
|---|---|---|
| Page(s) | C6-74 - C6-75 | |
| DOI | https://doi.org/10.1051/jphyscol:1978635 | |
The XVth International Conference on low temperature physics
Quantum Fluids and Solids
Superconductivity
J. Phys. Colloques 39 (1978) C6-74-C6-75
DOI: 10.1051/jphyscol:1978635
1 Argonne National Laboratory, Argonne, Illinois 60439, U.S.A.
2 Department of Physics, Northwestern University Evanston, Illinois 60201 U.S.A.
3 Department of Physics, Northwestern University Evmston, Illinois 60201 U.S.A.
Quantum Fluids and Solids
Superconductivity
J. Phys. Colloques 39 (1978) C6-74-C6-75
DOI: 10.1051/jphyscol:1978635
EFFECT OF 4HE ON POSITIVE-ION MOBILITY IN NORMAL LIQUID 3HE
P.R. Roach1, J. Betterson1, 2 and P.D. Roach1, 31 Argonne National Laboratory, Argonne, Illinois 60439, U.S.A.
2 Department of Physics, Northwestern University Evanston, Illinois 60201 U.S.A.
3 Department of Physics, Northwestern University Evmston, Illinois 60201 U.S.A.
Résumé
On a constaté que la mobilité des ions positifs dans du 3He très pur est presque proportionnelle à ln(1/T) entre 3 mK et ~ 100 mK, en accord avec les recents résultats théoriques. L'addition de faibles quantités de 4He abaisse considérablement cette mobilité à températures élevées et basses températures, peut conduire à l'existence simultanée de plusieurs espèces ioniques.
Abstract
We have found that the mobility of positive ions in very pure 3He is nearly proportional to ln(1/T) from 3 mK to ~ 100 mK as predicted by recent theory. The addition of small amounts of 4He, however, greatly reduces the mobility at higher temperatures and can lead to the simultaneous existence of several ion species at low temperatures.