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Applied Physics Letters
Volume 92, Issue 9, 093112 (March 2008).

Luminescence readout of nanoparticle phase state

A. I. Denisyuk,1 F. Jonsson,1 K. F. MacDonald,1 N. I. Zheludev,1 and F. J. García de Abajo2

1Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, United Kingdom.
2Instituto de Optica, CSIC, Serrano 121, 28006 Madrid, Spain.


We report that the phase state of bistable gallium nanoparticles, controlled by optical or electron beam excitations, can be identified via measurements of their cathodoluminescent emission, thus offering an innovative conceptual basis for the development of high density nonvolatile phase-change memories. Changes of up to 20% in visible emission intensity are observed following low-fluence optical or electron beam induced phase switching in a monolayer of 60 nm particles.

Full text: PDF [372 kB] | DOI: 10.1063/1.2890483

This article was featured in the March 17 (2008) issue of Virtual Journal of Nanoscale Science and Technology, published by the American Institute of Physics and the American Physical Society.

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