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Mesoscopic behaviour of He-3 quasiparticles in a dilute He-3-He-4 solution in Vycor glass

Research output: Contribution to journalJournal article

<mark>Journal publication date</mark>07/2000
<mark>Journal</mark>Physica B: Condensed Matter
Issue number1
Number of pages2
Pages (from-to)319-320
<mark>Original language</mark>English


Conference22nd International Conference on Low Temperature Physics


We have been investigating the properties of the He-3 component in dilute He-3-He-4 solutions in Vycor glass using cw NMR techniques. According to the simple model of a Fermi gas in a restricted geometry, the porous medium significantly changes the density of states and thereby increases the zero-point energy of the quasiparticles. As a result, the He-3 quasiparticles should be progressively excluded from the Vycor glass as the temperature is lowered. We observe this effect using the strength of the cw NMR response from the confined He-3. (C) 2000 Elsevier Science B.V. All rights reserved.