Research output: Contribution to Journal/Magazine › Journal article › peer-review
| <mark>Journal publication date</mark> | 15/12/1999 |
|---|---|
| <mark>Journal</mark> | Physical review B |
| Issue number | 23 |
| Volume | 60 |
| Number of pages | 4 |
| Pages (from-to) | 15593-15596 |
| Publication Status | Published |
| <mark>Original language</mark> | English |
We present an analysis of acoustic-phonon propagation through long, free-standing, insulating wires with rough surfaces. Owing to a crossover from ballistic propagation of the lowest-frequency phonon mode at omega < omega(1) = pi c/W to a diffusive (or even localized) behavior upon;the increase of phonon frequency, followed by reentrance into the quasiballistic regime, the heat conductance:of a wire acquires an intermediate tendency to saturate within the temperature range T similar to (h) over bar omega(1)/k(B). [S0163- 1829(99)02543-6].