Theoretical investigation of optical conductivity in Ba(Fe 1-xCo x) 2As 2

A. Sanna; F. Bernardini; G. Profeta; S. Sharma; J. K. Dewhurst; A. Lucarelli; L. Degiorgi; E. K.U. Gross; S. Massidda

doi:10.1103/PhysRevB.83.054502

Theoretical investigation of optical conductivity in Ba(Fe _1-xCo _x) ₂As ₂

A. Sanna, F. Bernardini, G. Profeta, S. Sharma, J. K. Dewhurst, A. Lucarelli, L. Degiorgi, E. K.U. Gross, S. Massidda

Research output: Contribution to journal › Review article › peer-review

Abstract

We report on theoretical calculations of the optical conductivity of Ba(Fe1-xCox )2As2, as obtained from density functional theory within the full-potential linear augmented plane-wave method. A thorough comparison with experiment shows that we are able to reproduce most of the observed experimental features, in particular, a magnetic peak located at about 0.2 eV, which we ascribe to antiferromagnetic ordered magnetic stripes. We also predict a large in-plane anisotropy of this feature, which agrees very well with measurements on detwinned crystals. The effect of Co doping, as well as the dependence of plasma frequency on the magnetic order, is also investigated.

Original language	English
Article number	054502
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	83
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.83.054502
State	Published - 4 Feb 2011
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.83.054502

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title = "Theoretical investigation of optical conductivity in Ba(Fe 1-xCo x) 2As 2",

abstract = "We report on theoretical calculations of the optical conductivity of Ba(Fe1-xCox )2As2, as obtained from density functional theory within the full-potential linear augmented plane-wave method. A thorough comparison with experiment shows that we are able to reproduce most of the observed experimental features, in particular, a magnetic peak located at about 0.2 eV, which we ascribe to antiferromagnetic ordered magnetic stripes. We also predict a large in-plane anisotropy of this feature, which agrees very well with measurements on detwinned crystals. The effect of Co doping, as well as the dependence of plasma frequency on the magnetic order, is also investigated.",

author = "A. Sanna and F. Bernardini and G. Profeta and S. Sharma and Dewhurst, {J. K.} and A. Lucarelli and L. Degiorgi and Gross, {E. K.U.} and S. Massidda",

year = "2011",

month = feb,

day = "4",

doi = "10.1103/PhysRevB.83.054502",

language = "الإنجليزيّة",

volume = "83",

journal = "Physical Review B - Condensed Matter and Materials Physics",

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TY - JOUR

T1 - Theoretical investigation of optical conductivity in Ba(Fe 1-xCo x) 2As 2

AU - Sanna, A.

AU - Bernardini, F.

AU - Profeta, G.

AU - Sharma, S.

AU - Dewhurst, J. K.

AU - Lucarelli, A.

AU - Degiorgi, L.

AU - Gross, E. K.U.

AU - Massidda, S.

PY - 2011/2/4

Y1 - 2011/2/4

N2 - We report on theoretical calculations of the optical conductivity of Ba(Fe1-xCox )2As2, as obtained from density functional theory within the full-potential linear augmented plane-wave method. A thorough comparison with experiment shows that we are able to reproduce most of the observed experimental features, in particular, a magnetic peak located at about 0.2 eV, which we ascribe to antiferromagnetic ordered magnetic stripes. We also predict a large in-plane anisotropy of this feature, which agrees very well with measurements on detwinned crystals. The effect of Co doping, as well as the dependence of plasma frequency on the magnetic order, is also investigated.

AB - We report on theoretical calculations of the optical conductivity of Ba(Fe1-xCox )2As2, as obtained from density functional theory within the full-potential linear augmented plane-wave method. A thorough comparison with experiment shows that we are able to reproduce most of the observed experimental features, in particular, a magnetic peak located at about 0.2 eV, which we ascribe to antiferromagnetic ordered magnetic stripes. We also predict a large in-plane anisotropy of this feature, which agrees very well with measurements on detwinned crystals. The effect of Co doping, as well as the dependence of plasma frequency on the magnetic order, is also investigated.

UR - http://www.scopus.com/inward/record.url?scp=79952582062&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.83.054502

DO - 10.1103/PhysRevB.83.054502

M3 - مقالة مرجعية

SN - 1098-0121

VL - 83

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 5

M1 - 054502

ER -

Theoretical investigation of optical conductivity in Ba(Fe _1-xCo _x) ₂As ₂

Abstract

All Science Journal Classification (ASJC) codes

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