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Resonant acoustic-phonon modes in a quantum wire
| Title: | Resonant acoustic-phonon modes in a quantum wire |
| Authors: | Nishiguchi, Norihiko Browse this author →KAKEN DB |
| Issue Date: | 15-Aug-1995 |
| Publisher: | American Physical Society |
| Journal Title: | Physical Review B |
| Volume: | 52 |
| Issue: | 7 |
| Start Page: | 5279 |
| End Page: | 5288 |
| Publisher DOI: | 10.1103/PhysRevB.52.5279 |
| Abstract: | We study the extended acoustic-phonon modes in a cylindrical GaAs quantum wire embedded in bulk AlAs. There are two kinds of resonant acoustic-phonon modes related to the wire dimensions: one is entirely extended in the system and the other is almost confined in the wire. Displacement of extended phonon modes in the wire region is enhanced for the resonant modes. The dispersion relations of these resonant modes have subband structures similar to those of confined phonon modes in free-standing wires. Owing to the resonant modes, the extended phonon modes, in the wire region, have characters of confined phonon modes in a free-standing wire rather than the usual bulk phonon modes. |
| Rights: | © 1995 The American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/47083 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 西口 規彦
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