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Ab Initio Study of Magnetism in FeSe and FeTe

IR@NPL: CSIR-National Physical Laboratory, New Delhi

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Title Ab Initio Study of Magnetism in FeSe and FeTe
 
Creator Kumar, Jagdish
Ahluwalia, P. K
Auluck, S.
Awana, V. P. S.
 
Subject Applied Physics/Condensed Matter
 
Description Magnetism in FeSe and FeTe systems is studied using density functional theory. Nonmagnetic (NM), ferromagnetic (FM) and three different antiferromagnetic (AFM) states are considered. We have investigated chalcogen height dependence of magnetism using LDA and GGA exchange correlations. For FeSe, LDA used for both structural optimization and magnetism, yields magnetic energies that seem close to experiments. For FeTe, LDA and GGA give different magnetic ground states for experimental zTe. For FeTe, GGA gives magnetic ground state that is found in experiments, which is in contrast to FeSe and pnictides.
 
Publisher American Institute of Physic
 
Date 2012
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Identifier http://npl.csircentral.net/3705/2/Ab%20initio%20study%20of%20magnetism.pdf
Kumar, Jagdish and Ahluwalia, P. K and Auluck, S. and Awana, V. P. S. (2012) Ab Initio Study of Magnetism in FeSe and FeTe. In: 56th DAE-Solid State Physics Symposium (SSPS), DEC 19-23, 2011, SRM Univ, Kattankulathur, INDIA.
 
Relation http://npl.csircentral.net/3705/