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Title: A study of many-body phenomena in metal nanoclusters (Au, Cu) close to their transition to the nonmetallic state

Abstract

The results of a study of many-body phenomena in gold and copper nanoclusters are presented. The measured conductivity as a function of nanocluster height h was found to have a minimum at h {approx} 0.6 nm. Conductivity was local in character at nanocluster sizes l {<=} l{sub c} {approx} 2.5 nm. Changes in core hole screening and an anomalous increase in the Anderson singularity index {alpha} in gold and copper nanoclusters could be caused by changes in permittivity from metallic ({epsilon} {sup {yields}} {infinity}) to nonmetallic ({epsilon} {proportional_to} l{sup 2}). The many-body phenomenon characteristics observed in the X-ray photoelectron and tunnel spectra of gold and copper nanoclusters as the size of the nanoclusters changed led us to suggest changes in the band structure of the nanoclusters and, therefore, their possible transition from the metallic to nonmetallic state.

Authors:
; ; ; ; ;  [1]; ;  [2]
  1. Moscow Engineering Physics Institute (State University) (Russian Federation), E-mail: Troyan@mephi.ru
  2. Nizhni Novgorod State University (Russian Federation)
Publication Date:
OSTI Identifier:
21067736
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Experimental and Theoretical Physics; Journal Volume: 102; Journal Issue: 2; Other Information: DOI: 10.1134/S1063776106020117; Copyright (c) 2006 Nauka/Interperiodica; Article Copyright (c) 2006 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATOMIC CLUSTERS; COPPER; GOLD; MANY-BODY PROBLEM; NANOSTRUCTURES; PERMITTIVITY; SINGULARITY

Citation Formats

Borman, V. D., Borisyuk, P. V., Lebid'ko, V. V., Pushkin, M. A., Tronin, V. N., Troyan, V. I., Antonov, D. A., and Filatov, D. O. A study of many-body phenomena in metal nanoclusters (Au, Cu) close to their transition to the nonmetallic state. United States: N. p., 2006. Web. doi:10.1134/S1063776106020117.
Borman, V. D., Borisyuk, P. V., Lebid'ko, V. V., Pushkin, M. A., Tronin, V. N., Troyan, V. I., Antonov, D. A., & Filatov, D. O. A study of many-body phenomena in metal nanoclusters (Au, Cu) close to their transition to the nonmetallic state. United States. doi:10.1134/S1063776106020117.
Borman, V. D., Borisyuk, P. V., Lebid'ko, V. V., Pushkin, M. A., Tronin, V. N., Troyan, V. I., Antonov, D. A., and Filatov, D. O. Wed . "A study of many-body phenomena in metal nanoclusters (Au, Cu) close to their transition to the nonmetallic state". United States. doi:10.1134/S1063776106020117.
@article{osti_21067736,
title = {A study of many-body phenomena in metal nanoclusters (Au, Cu) close to their transition to the nonmetallic state},
author = {Borman, V. D. and Borisyuk, P. V. and Lebid'ko, V. V. and Pushkin, M. A. and Tronin, V. N. and Troyan, V. I. and Antonov, D. A. and Filatov, D. O.},
abstractNote = {The results of a study of many-body phenomena in gold and copper nanoclusters are presented. The measured conductivity as a function of nanocluster height h was found to have a minimum at h {approx} 0.6 nm. Conductivity was local in character at nanocluster sizes l {<=} l{sub c} {approx} 2.5 nm. Changes in core hole screening and an anomalous increase in the Anderson singularity index {alpha} in gold and copper nanoclusters could be caused by changes in permittivity from metallic ({epsilon} {sup {yields}} {infinity}) to nonmetallic ({epsilon} {proportional_to} l{sup 2}). The many-body phenomenon characteristics observed in the X-ray photoelectron and tunnel spectra of gold and copper nanoclusters as the size of the nanoclusters changed led us to suggest changes in the band structure of the nanoclusters and, therefore, their possible transition from the metallic to nonmetallic state.},
doi = {10.1134/S1063776106020117},
journal = {Journal of Experimental and Theoretical Physics},
number = 2,
volume = 102,
place = {United States},
year = {Wed Feb 15 00:00:00 EST 2006},
month = {Wed Feb 15 00:00:00 EST 2006}
}