Rosenauer, A. and Reisinger, T. and Franzen, F. and Schütz, G. and Hahn, B. and Wolf, K. and Zweck, Josef and Gebhardt, Wolfgang (1996) Transmission electron microscopy and reflected high-energy electron-diffraction investigation of plastic relaxation in doped and undoped ZnSe/GaAs(001). JOURNAL OF APPLIED PHYSICS, 79 (8). pp. 4124-4131. ISSN 0021-8979, 1089-7550
Full text not available from this repository.Abstract
We report on reflected high-energy electron-diffraction and transmission electron microscopy plane-view investigation of the dislocation structure in doped and undoped ZnSe/GaAs(001) grown by molecular-beam epitaxy and metal-organic vapor-phase epitaxy. The thicknesses of the investigated layers vary between 60 and 900 nm. Several stages of dislocation formation are found which occur at distinct layer thicknesses. Frank partial dislocations (up to 500 nm), Shockley partial dislocations (between 130 and 400 nm) with a maximum density at 300 nm, and perfect 60 degrees dislocations (above 300 nm) are observed in samples with perfectly smooth surface. The formation of Shockley partial dislocations is strongly anisotropic which might be due to the higher mobility of alpha-type dislocations. An increased roughness of the growing surface yields a suppression of Shockley partial dislocations and an irregular dislocation network with dislocations inclined to the [110] directions. A regular dislocation network with straight dislocations is found in Cl-doped samples. (C) 1996 American Institute of Physics.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MOLECULAR-BEAM EPITAXY; STRUCTURAL-PROPERTIES; GROWTH MODE; DISLOCATIONS; SYSTEM; FILMS |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Chair Professor Back > Group Josef Zweck |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 02 Nov 2023 06:16 |
| Last Modified: | 02 Nov 2023 06:16 |
| URI: | https://pred.uni-regensburg.de/id/eprint/51778 |
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