Abstract
The structure of amorphous GaSb, produced by spontaneous transformation to the amorphous state of the metastable high pressure phase, is determined by neutron diffraction and compared to published results on a sample of the same composition but produced by sputtering. The structures are shown to be similar but not in complete agreement. We conclude that the local order is tetrahedral and related to the one in the low pressure crystalline GaSb-I. The packing of the tetrahedra is interpreted as a distorted ZnS blende type of network. A comparative analysis of measured static structure factors for a-GaSb with those for other amorphous materials with tetrahedral bonding indicates that the structure of amorphous GaSb has similarities with the structure of amorphous germanium and silicon.
| Original language | English |
|---|---|
| Pages (from-to) | 250-259 |
| Number of pages | 10 |
| Journal | Journal of Non-Crystalline Solids |
| Volume | 244 |
| Issue number | 2 |
| DOIs | |
| State | Published - Mar 2 1999 |
| Externally published | Yes |
Funding
The authors wish to acknowledge the SERC for the access to the ISIS pulsed neutron source and the selection committee of the Studsvik Neutron Research Laboratory (SNRL) for offering the beam time at the R2 reactor. The work was supported in part by the Grant No REP300 from the International Science Foundation and the Russian Government and in part by the Grants No 96-02-18545 (EGP) and 96-02-17486 (OIB) from the Russian Foundation for Fundamental Research. and Grant No 96-15-96806 from the Russian Academy of Sciences. We would also particularly like to thank the Royal Swedish Academy of Sciences for financial support under Grant No 1454.
| Funders | Funder number |
|---|---|
| Russian Foundation for Fundamental Research | 96-15-96806 |
| International Foundation for Science | |
| Royal Swedish Academy of Sciences | 1454 |
| Russian Academy of Sciences | |
| Government Council on Grants, Russian Federation | 96-02-18545, 96-02-17486 |