Local spin correlations in partially frustrated amorphous Fe-Mn期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Local spin correlations in partially frustrated amorphous Fe-Mn

Authors:	D. Wiarda Hong Ren D. H. Ryan

Affiliation:	(1) Centre for the Physics of Materials and Department of Physics, McGill University, 3600 University Street, H3A 2T8 Montréal, Québec, Canada

Abstract:	Mössbauer measurements in a-(Fe_0.765Mn_0.235)₇₈Sn₂Si₆B₁₄ have been performed with⁵⁷Fe and¹¹⁹Sn. Both hyperfine fields show a kink near 70 K, indicating a freezing of the transverse spins. The ratio of the two hyperfine fields contains information about the correlation of the transverse spins. The ratioB_hf(Sn)/B_hf(Fe) stays constant aboveT_xy and rises belowT_xy. This indicates an alignment of the transverse spins on a local scale, as was also found inAuFe and a-FeZr.

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