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Title of Journal: J Low Temp Phys

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Abbravation: Journal of Low Temperature Physics

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Springer US

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DOI

10.1007/bf01477813

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1573-7357

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Interactions of Phonons and Rotons with Interfaces

Authors: I V Tanatarov I N Adamenko K E Nemchenko A F G Wyatt
Publish Date: 2010/03/03
Volume: 159, Issue: 5-6, Pages: 549-575
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Abstract

We solve the problem of beams of phonons and rotons incident on and interacting with solid surfaces Phonons and rotons are the quasiparticles of superfluid helium and have a unique dispersion curve The dispersion curve controls the transmission reflection and mode change of these quasiparticles at the interface with another medium We develop a nonlocal hydrodynamic theory in a consistent and unified way The structure of the solutions in the quantum fluid is discussed The creation probabilities of all quasiparticles are derived when any one of them is incident on the interface The dependencies on frequency and angle are analyzed and the backward reflection and refraction for R − rotons are discussed

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  2. High-Field Transitions in ErFe 11 Ti and HoFe 11 Ti Single Crystals
  3. A Mo/Au Bilayer Transition Edge Sensor Modified with Normal Metal Structures
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  6. Investigation of the Double Superconducting Transition and Low-Temperature Specific Heat of Pr(Os 1-x Ru x ) 4 Sb 12
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  10. The Glassy Response of Double Torsion Oscillators in Solid 4 He
  11. Specific Heat of the Monoclinic Rare Earth Double Tungstates
  12. High-Pressure and Electronic Band Structure Studies on Mo$$_{}$$BC
  13. The POLARBEAR-2 Experiment
  14. Development of the rf-SQUID Based Multiplexing System for the HOLMES Experiment
  15. Heat Capacity of Adsorbed Helium-3 at Ultra-Low Temperatures
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