Abstract
Elemental iodine has been studied by I129 Mössbauer effect at 4 K to pressures of 30 GPa in a diamond anvil cell. Its structural transformations leading to metallization have been determined by the quadrupole interaction. At P 16 GPa an I2-I2 zigzag chain is formed leading to its metallic behavior and at P21 GPa the formation of a quasi two-dimensional system is observed. Up to 30 GPa the 12 molecule remains the building block of the high-pressure structural modifications.
| Original language | English |
|---|---|
| Pages (from-to) | 575-578 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 58 |
| Issue number | 6 |
| DOIs | |
| State | Published - 1987 |
| Externally published | Yes |