Dubin

Computer simulation of ion clouds in a Penning trap.

D. Dubin, Dubin, O'Neil, 1988, Physical review letters.

Negative Poisson's ratios for extreme states of matter

Baughman, Zakhidov, R. Baughman, 2000, Science.

Direct observations of structural phase transitions in planar crystallized ion plasmas

Baughman, W. Itano, Itano, 1998, Science.

Theory of structural phase transitions in a trapped Coulomb crystal.

Dubin, Dubín, 1993, Physical review letters.