1. Strong Suppression of the Kosterlitz-Thouless Transition in a 4He Film under High Pressure.
- Author
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Murakawa, S., Wasai, M., Akiyama, K., Wada, Y., Tamura, Y., Nomura, R., and Okuda, Y.
- Subjects
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PARTICLES (Nuclear physics) , *HELIUM , *ACOUSTIC impedance , *PRESSURE , *MATHEMATICAL models ,ACOUSTIC properties of liquid helium - Abstract
We have found that the surface specularity for ³He quasiparticle scattering is closely related to the superfluidity and the Kosterlitz-Thouless (KT) transition of 4He film absorbed on the surface. the specularity is determined by measurements of the transverse acoustic impedance of bulk liquid ⊃3He. The unique point of our system is that we can control the correlation among 4He atoms in the film by changing the pressure of the bulk ⊃3He. the observed KT transition temperature is significantly suppressed by increasing the pressure, which suggest a strong correlation effect on KT transition. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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