Physics – Condensed Matter – Materials Science
Scientific paper
2005-06-04
Physics
Condensed Matter
Materials Science
18 pages; 4 figures, 80 references
Scientific paper
Thermally stimulated process such as evaporation, phase transition, or solid-liquid transition of a solid consumes each a certain portion of the solid cohesive energy that is the sum of bond energy over all the coordinates of all the involved atoms. Generally, the critical temperatures for such processes drop with solid size, unless hetero capping or interfacial interaction becomes dominant, because of the increased portion of the lower-coordinated surface atoms [Sun et al., J. Phys. Chem. B108, 1080 (2004)]. It is intriguing, however, that the melting point (Tm) of a solid containing III-A or IV-A atoms oscillates with size (the Tm drops first and then rises as the solid size is reduced) and that the Tm of chemically capped nanosolid often increases with the inverse size. Here we show that bond nature evolution is essential for the selective nanosolids and at the junction interfaces, which is responsible for the superheating of the smallest nanosolids, chemically capped clusters, and junction interfaces that exhibit insulating nature with high mechanical strength.
Bai L. H.
Jiang E. Y.
Li Chang Ming
Li Zhi-Qing
Shi Yaoming
No associations
LandOfFree
Nature evolution of the shortened bond in atomic clusters and at junction interfaces does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Nature evolution of the shortened bond in atomic clusters and at junction interfaces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nature evolution of the shortened bond in atomic clusters and at junction interfaces will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-343524