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The Effective Mass of Charged Carrier in a Nonpolar Liquid: “Snowball” in the Superfluid He 4

PISA, July, 16, 2007. The Effective Mass of Charged Carrier in a Nonpolar Liquid: “Snowball” in the Superfluid He 4. Andrei Varlamov COHERENTIA INFM-CNR, Rome, Italy. In collaboration with: Ioulia Chikina, CEA, Saclay, Gif-sur-Yvette, France Valerii Shikin, ISSP, Chernogolovka, Russia.

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The Effective Mass of Charged Carrier in a Nonpolar Liquid: “Snowball” in the Superfluid He 4

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  1. PISA, July, 16, 2007 The Effective Mass of Charged Carrier in a Nonpolar Liquid:“Snowball” in the Superfluid He4 Andrei Varlamov COHERENTIA INFM-CNR, Rome, Italy In collaboration with: Ioulia Chikina, CEA, Saclay, Gif-sur-Yvette, France Valerii Shikin, ISSP, Chernogolovka, Russia

  2. Outline • Charged transport in liquid helium • “Snowball” model for the charge carrier effective mass in superfluid liquid (advantages and non …) • Ion effective mass in normal liquids • Effective mass cloud model under the same conditions Stationary motion Oscillatory regime • Discussion and comparison with the experiment

  3. Charge carriers in liquid helium

  4. Pressure and liquid density distributionsaround the ion Non-polar liquid around point like charge a is thepolarisation of individual atom v is the volume of individual solvent atom s is the sound velosty

  5. P(r) Snowball effective mass Atkins K, 1959 (Phys Rev 116, 1339) r

  6. The reduced effective mass of the positive ion plotted against temperature CJ Mellor et all 1988, J Phys Solid State Phys 21, 325

  7. Effective mass in cloud model +

  8. Definition of

  9. Viscous part of associated mass

  10. Normal Stokes Radius Definition Continuity equation Stokes equation

  11. Normal stationary motion

  12. Oscillatory regime M wt 1

  13. Temperature dependence of the effective mass

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