Dynamic susceptibility study of YFexAl12−x (4≤x≤5)

Sério, Susana; Pereira, Laura C. J.; Cruz, M.M.; Godinho, M.; Waerenborgh, J.C.

doi:10.1016/j.jallcom.2008.10.068

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2011

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“…Published results for RFe 5 Al 7 compounds based on neutron diffraction data gave the indication that the formation of ferrimagnetic structures is preceded by short-range order or frozen magnetic states due to Fe clusters on 8j sites [15]. However, this study shows that for DyFe 4 Al 8 short-range order is also observed above the ordering temperature as in the isostructural YFe 4 Al 8 [26]. The Mö ssbauer spectroscopy, which is very sensitive to small amounts of Fe on 8j sites [20], clearly indicates that the Fe atoms on both YFe 4 Al 8 and DyFe 4 Al 8 only occupy the 8f positions.…”

Section: Discussionmentioning

confidence: 53%

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Static and dynamic magnetic study of DyFexAl12−x (4≤x≤4.7)

Sério¹,

Pereira²,

Godinho³

et al. 2008

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Section: Discussionmentioning

confidence: 53%

“…The fact that these Fe-rich clusters are also observed in the ordered DyFe 4 Al 8 and YFe 4 Al 8 [26] indicates that at least in these cases they are a consequence of sample inhomogeneities, such as defects and vacancies, which are below the detection limits of routine structural analysis techniques.…”

Section: Resultsmentioning

confidence: 99%