Abstract
We report the first observation of Bragg scattering from atomic ions confined in an electromagnetic trap. The results reveal long-range order and give evidence for bulk behavior in a strongly coupled collection of laser-cooled ions in a Penning trap. Long-range order emerges in approximately spherical clouds with as few as 5 × ions (cloud radius where ). Bulk behavior is evident with 2.7 × trapped ions (), with Bragg scattering patterns characteristic of a body-centered cubic lattice.
- Received 26 June 1995
DOI:https://doi.org/10.1103/PhysRevLett.75.4198
©1995 American Physical Society