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Effects of spin structures on phonons in
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10.1063/1.3464166
/content/aip/journal/apl/97/2/10.1063/1.3464166
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/2/10.1063/1.3464166

Figures

Image of FIG. 1.
FIG. 1.

The used magnetic structures of : (a) SDW; (b) STR17; (c) stripe; (d) checkerboard; and (e) NM. Big balls (golden): Ba; small balls (grey): As; medium balls (red) with arrows pointing left: Fe with spin up; medium balls (cyan) with arrows pointing right: Fe with spin down. Fe atoms are shown as medium balls (white) for NM case.

Image of FIG. 2.
FIG. 2.

The calculated GDOS for for the four magnetic structures [solid lines (black) in (a) SDW; (b) STR17; (c) stripe; and (d) checkerboard] in comparison to that for the NM structure [dotted-dashed line (blue)] together the measured GDOS by Zbiri et al. (Ref. 17) [small open circles connected by dotted line (black)] and Mittal et al. (Ref. 19) [small plus signs connected by dotted-dashed line (green)]. The netted shadows (red) show the calculated phonon energy gap for the corresponding magnetic structures.

Image of FIG. 3.
FIG. 3.

The calculated specific heats [overlapped lines (black)] for for the four magnetic structures in comparison to that for the NM structure [dotted line (red)] together the measured data by Ni et al. (Ref. 23) (open circles), Sefat et al. (Ref. 24) (open squares), and Bud’ko et al. (Ref. 22) (solid diamonds). The inset shows the deduced Debye temperature by fitting the calculated lattice contribution to the specific heat with Debye formula (Ref. 1).

Tables

Generic image for table
Table I.

The calculated 0 K static properties of .

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/content/aip/journal/apl/97/2/10.1063/1.3464166
2010-07-13
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effects of spin structures on phonons in BaFe2As2
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/2/10.1063/1.3464166
10.1063/1.3464166
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