Premium
Vibrational Evidence for Percolative Behavior in ZnBeSe
Author(s) -
Pagès O.,
Ajjoun M.,
Laurenti J.P.,
Bormann D.,
Chauvet C.,
Tournié E.,
Faurie J.P.
Publication year - 2002
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200201)229:1<25::aid-pssb25>3.0.co;2-4
Subject(s) - percolation (cognitive psychology) , ternary operation , cluster (spacecraft) , percolation threshold , materials science , semiconductor , condensed matter physics , mode (computer interface) , chemical physics , statistical physics , nanotechnology , physics , optoelectronics , computer science , electrical resistivity and conductivity , quantum mechanics , psychology , neuroscience , programming language , operating system
We propose a picture based on simple percolative concepts for the basic understanding of vibrational properties in the new attractive class of ternary semiconductor alloys made of materials with highly contrasted bond stiffness. In Zn 1— x Be x Se this accounts for the activation of a strong extra BeSe‐like optical mode for x between the percolation thresholds of the Be–Se and Zn–Se bonds. Latter mode is attributed to Be–Se bonds within the quasi‐continuous Be‐rich hard‐like cluster which forms above the percolation threshold.