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Mössbauer study of the magnetocaloric compound AlFe2B2

Cedervall, Johan (author)
Uppsala universitet,Oorganisk kemi
Häggström, Lennart (author)
Uppsala universitet,Materialfysik
Ericsson, Tore (author)
Uppsala universitet,Materialfysik
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Sahlberg, Martin (author)
Uppsala universitet,Oorganisk kemi
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 (creator_code:org_t)
2016-02-22
2016
English.
In: Hyperfine Interactions. - : Springer Science and Business Media LLC. - 0304-3843 .- 1572-9540. ; 237
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Mössbauer spectroscopy in the ferromagnetic AlFe2B2 reveals Tc=299 K and shows good agreement with magnetic measurements. The crystals are plate-shaped. The flakes are found from X-ray diffraction to be in the crystallographic ac-plane in the orthorhombic system. The axes of the principle electric field gradient tensor are, by symmetry, colinear with the crystal a-, b- and c-axes. By using information about the quadrupole splitting and line asymmetry in the paramagnetic regime together with the quadrupole shift of the resonance lines in the ferromagnetic regime the magnetic hyperfine field direction is found to be in the ab-plane having an angle =40° to the b-axis.

Subject headings

NATURVETENSKAP  -- Kemi -- Oorganisk kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)

Keyword

Chemistry with specialization in Inorganic Chemistry
Kemi med inriktning mot oorganisk kemi

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Cedervall, Johan
Häggström, Lenna ...
Ericsson, Tore
Sahlberg, Martin
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Hyperfine Intera ...
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