High-pressure/high-temperature NFS study of magnetism in LuFe2 and ScFe2

K. Rupprecht; T. Friedmann; H. Giefers; G. Wortmann; B. Doyle; J. Zukrowski

doi:10.1080/08957950211356

High-pressure/high-temperature NFS study of magnetism in LuFe₂ and ScFe₂

K. Rupprecht, T. Friedmann, H. Giefers, G. Wortmann, B. Doyle, J. Zukrowski

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Using the new technique of nuclear forward scattering (NFS) of synchrotron radiation, we studied the magnetic hyperfine fields Bhf and ordering temperatures T_M of the Laves phases LuFe₂ (cubic C15) and ScFe₂ (hexagonal C14) at pressures up to 90 GPa and temperatures up to 700 K. For LuFe₂ we find for T_M first an increase from 562 K at 0 GPa to 603 K at 10 GPa and then a decrease to 295 K around 75 GPa. The hyperfine fields B_hf show at 295 K a continuous decrease with pressure, indicating a reduction of the Fe band moment. A similar behaviour of both T_M and B_hf was observed in ScFe₂.

Original language	English
Pages (from-to)	189-194
Number of pages	6
Journal	High Pressure Research
Volume	22
Issue number	1
DOIs	https://doi.org/10.1080/08957950211356
Publication status	Published - Apr 2002
Externally published	Yes

Keywords

Band moments
High pressure
Magnetism
Nuclear forward scattering

ASJC Scopus subject areas

Condensed Matter Physics

Access to Document

10.1080/08957950211356

Cite this

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abstract = "Using the new technique of nuclear forward scattering (NFS) of synchrotron radiation, we studied the magnetic hyperfine fields Bhf and ordering temperatures TM of the Laves phases LuFe2 (cubic C15) and ScFe2 (hexagonal C14) at pressures up to 90 GPa and temperatures up to 700 K. For LuFe2 we find for TM first an increase from 562 K at 0 GPa to 603 K at 10 GPa and then a decrease to 295 K around 75 GPa. The hyperfine fields Bhf show at 295 K a continuous decrease with pressure, indicating a reduction of the Fe band moment. A similar behaviour of both TM and Bhf was observed in ScFe2.",

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AU - Rupprecht, K.

AU - Friedmann, T.

AU - Giefers, H.

AU - Wortmann, G.

AU - Doyle, B.

AU - Zukrowski, J.

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AB - Using the new technique of nuclear forward scattering (NFS) of synchrotron radiation, we studied the magnetic hyperfine fields Bhf and ordering temperatures TM of the Laves phases LuFe2 (cubic C15) and ScFe2 (hexagonal C14) at pressures up to 90 GPa and temperatures up to 700 K. For LuFe2 we find for TM first an increase from 562 K at 0 GPa to 603 K at 10 GPa and then a decrease to 295 K around 75 GPa. The hyperfine fields Bhf show at 295 K a continuous decrease with pressure, indicating a reduction of the Fe band moment. A similar behaviour of both TM and Bhf was observed in ScFe2.

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