Phonon scattering from the boundaries of small crystals embedded in a dielectric porous-glass matrix |
| |
| Authors: | L S Parfen’eva I A Smirnov A V Fokin H Misiorek J Mucha A Jezowski |
| |
| Institution: | (1) Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021, Russia;(2) Institute of Low-Temperature and Structural Research, Polish Academy of Sciences, Wroclaw, 50-950, Poland |
| |
| Abstract: | The thermal conductivity of porous glass with randomly distributed connecting pores ～70 Å in size (glass porosity ～25%), as well as of a porous glass + NaCl composite, was measured in the temperature range 5–300 K. NaCl filled one fourth of the pores in the composite. The experimental results on the composite thermal conductivity can be accounted for only by assuming that phonons scatter from the boundaries of NaCl nanocrystals embedded in channels of the porous glass. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
