Non-Crystalline Structures of Ultra-Thin Unsupported Nanowires

Дата и время публикации : 1998-03-09T15:38:53Z

Авторы публикации и институты :
Oguz Gulseren (International Centre for Theoretical Physics, Trieste, Italy, International School for Advanced Studies, Trieste, Italy, Istituto Nazionale di Fisica della Materia, Italy, School of Physics, University of Bath, Bath, United Kingdom)
Furio Ercolessi (International School for Advanced Studies, Trieste, Italy, Istituto Nazionale di Fisica della Materia, Italy)
Erio Tosatti (International Centre for Theoretical Physics, Trieste, Italy, International School for Advanced Studies, Trieste, Italy, Istituto Nazionale di Fisica della Materia, Italy)

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 5 pages, 2 figures, REVTeX
Первичная категория: cond-mat.mtrl-sci

Все категории : cond-mat.mtrl-sci

Краткий обзор статьи: Computer simulations suggest that ultrathin metal wires should develop exotic, non-crystalline stable atomic structures, once their diameter decreases below a critical size of the order of a few atomic spacings. The new structures, whose details depend upon the material and the wire thickness, may be dominated by icosahedral packings. Helical, spiral-structured wires with multi-atom pitches are also predicted. The phenomenon, analogous to the appearance of icosahedral and other non-crystalline shapes in small clusters, can be rationalized in terms of surface energy anisotropy and optimal packing.

Category: Physics