Istituto dei materiali per l'elettronica ed il magnetismo     
Diaconescu B., Karsten P., Vattuone L., Savio L., Hofmann P., Vyacheslav M. S., Pitarke J. M., Chulkov E. V., Echenique P. M., Faržas D., Rocca M. Low-energy acoustic plasmons at metal surfaces. In: Nature, vol. 448 (7149) pp. 57 - 59. Nature, 2007.
Nearly two-dimensional (2D) metallic systems formed in charge inversion layers1 and artificial layered materials2,3 permit the existence of low-energy collective excitations4,5, called 2D plasmons, which are not found in a three-dimensional (3D) metal.
DOI: 10.1038/nature05975
Subject Low-energy acoustic plasmons at metal surfaces

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