Direct Observations of Structural Phase Transitions in Planar Crystallized Ion Plasmas-Reference-Cited by-同舟云学术

Direct Observations of Structural Phase Transitions in Planar Crystallized Ion Plasmas

Published:1998-11-13 Issue:5392 Volume:282 Page:1290-1293
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Mitchell T. B.¹,Bollinger J. J.¹,Dubin D. H. E.¹,Huang X.-P.¹,Itano W. M.¹,Baughman R. H.¹

Affiliation:

1. T. B. Mitchell, J. J. Bollinger, X.-P. Huang, W. M. Itano, Time and Frequency Division, National Institute of Standards and Technology, Boulder, CO 80303, USA. D. H. E. Dubin, Department of Physics, University of California at San Diego, La Jolla, CA 92093, USA. R. H. Baughman, Research and Technology, Allied Signal, Morristown, NJ 07962, USA.

Abstract

Laser-cooled 9 Be + ions confined in two-dimensionally extended lattice planes were directly observed, and the images were used to characterize the structural phases of the ions. Five different stable crystalline phases were observed, and the energetically favored structure could be sensitively tuned by changing the areal density of the confined ions. The experimental results are in good agreement with theoretical predictions for the planar (infinite in two dimensions) one-component plasma. Qualitatively similar structural phase transitions occur, or are predicted to occur, in other experimentally realizable planar systems.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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