The Kapitza resistance and phonon reflectivity between solids and liquid helium

✍ Scribed by David Checke; Henry Ettinger

• Publisher: Springer US
• Year: 1979
• Tongue: English
• Weight: 801 KB
• Volume: 36
• Category: Article
• ISSN: 0022-2291
• DOI: 10.1007/bf00174916

✦ Synopsis

Results of calculations of Kapitza resistance and phonon reflectivity are presented for clean and dirty solid surfaces in contact with liquid helium. We suppose the existence of a thin attenuating layer of absorbed solid helium at the interface. It is shown that even 5-15A thick layers of contamination can very significantly improve the phonon transmission near 1-2 K, and could also explain results for hydrogen, deuterium, and neon.