Crystal Structure of Lithium at 4.2 K
Abstract
The (heretofore unknown) crystal structure of lithium at low temperature is identified to be close-packed rhombohedral 9R. The stacking order of the hexagonal layers is ABCBCA-CAB, a nine-layer repeat sequence. There are three atoms per primitive rhombohedral cell, and nine in the (nonprimitive) hexagonal cell. The only other element with this structure is samarium.
- Publication:
-
Physical Review Letters
- Pub Date:
- July 1984
- DOI:
- 10.1103/PhysRevLett.53.64
- Bibcode:
- 1984PhRvL..53...64O
- Keywords:
-
- 61.55.Fe;
- 61.12.Dw;
- 68.20.+t