Please use this identifier to cite or link to this item: http://repository.vnu.edu.vn/handle/VNU_123/29054
Title: Anharmonic correlated Debye model Debye-Waller factors
Authors: Nguyen, Van Hung
Nguyen, Bao Trung
Barbara, Kirchner
Keywords: EXAFS cumulants;Anharmonic effectivepotential;Correlated Debyemodel
Issue Date: 2010
Publisher: H. : ĐHQGHN
Citation: ISIKNOWLEDGE
Abstract: AnharmoniccorrelatedDebyemodelhasbeenderivedforcalculationandanalysisofextendedX-ray absorptionfinestructure(EXAFS)cumulantsusingananharmoniceffectivepotentialthattakesinto accountallnearestneighborinteractionsofabsorberandbackscatteringatoms.Dispersionrelationhas been considered,andanharmoniceffectsareincludedbasedoncumulantexpansion.Analytical expressionsforthefirst,second,third,andfourthEXAFScumulantshavebeenderived.Theycontain anharmoniceffectivepotentialparameters.NumericalcalculationshavebeenappliedtoCu,where Morsepotentialisusedtocharacterizetheinteractionbetweeneachpairofatoms.Theresultsare foundtobeingoodagreementwithexperiment.
Description: TNS06174 ; PHYSICA B-CONDENSED MATTER Volume: 405 Issue: 11 Pages: 2519-2525
URI: http://repository.vnu.edu.vn/handle/VNU_123/29054
Appears in Collections:Bài báo của ĐHQGHN trong Web of Science

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