Reference : Kronig-Penney-Ising picture of colossal magnetoresistance

	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Physics
	To cite this reference:	http://hdl.handle.net/2268/18018

Title :	Kronig-Penney-Ising picture of colossal magnetoresistance
Language :	English
Author, co-author :	Vandewalle, Nicolas [Université de Liège - ULg > Département de physique > Physique statistique >]
	Ausloos, Marcel [Université de Liège - ULg > Département de physique > Physique statistique appliquée et des matériaux - S.U.P.R.A.S. >]
	Cloots, Rudi [Université de Liège - ULg > Département de chimie (sciences) > Chimie inorganique structurale - Doyen de la Faculté des Sciences >]
Publication date :	1-May-1999
Journal title :	Physical Review. B : Condensed Matter
Publisher :	American Institute of Physics
Volume :	59
Issue/season :	18
Pages :	11909-11913
Peer reviewed :	Yes (verified by ORBi)
ISSN :	0163-1829
City :	New York
Country :	NY
Abstract :	[en] From general arguments, it is shown that a magnetic Kronig-Penney model based on the thermodynamics of an Ising model can be used for describing the colossal magnetoresistance (CMR) phenomenon. The model considers a tunneling like transmission process of hopping electrons through a dynamic lattice characterized by evolving magnetic clusters. In this model, correlations between the magnetic states are considered to be more relevant than the lattice strain effects for obtaining the CMR features. Physical arguments lead to the theoretical description of the intrinsic temperature and field dependences of the CMR observed in typical manganite materials.
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/18018

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