XMCD characterization of the ferromagnetic state of Yb14MnSb11

Aaron P. Holm, Susan M. Kauzlarich, Simon A. Morton, G. Dan Waddill, Warren E. Pickett, James G. Tobin

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Abstract

X-ray magnetic circular dichroism (XMCD) measurements on Yb14MnSb11 provide experimental evidence of a moment of 5 μB on Mn, with partial cancellation by an opposing moment on the Sb4 cage surrounding each Mn ion. The compound is isostructural to Ca14AISb11, with Mn occupying the AI site in the AISb4 9- discrete tetrahedral, anionic unit. Bulk magnetization measurements indicate a saturation moment of 3.90 ± 0.02 μB/formula unit consistent with four unpaired spins and implying a Mn3+, high-spin d4 state. XMCD measurements reveal that there is strong dichroism in the Mn L23 edge, the Sb M45 edge shows a weak dichroism indicating antialignment to the Mn, and the Yb N45 edge shows no dichroism. Comparisons of the Mn spectra with theoretical models for Mn2+ show excellent agreement. The bulk magnetization can be understood as Mn with a moment of 5 μB and a 2+ configuration, with cancellation of one spin by an antialigned moment from the Sb 5p band of the Sb4 cage surrounding the Mn.

Original languageEnglish (US)
Pages (from-to)9894-9898
Number of pages5
JournalJournal of the American Chemical Society
Volume124
Issue number33
DOIs
StatePublished - Aug 21 2002

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Dichroism
Circular Dichroism
X-Rays
X rays
Magnetization
Theoretical Models
Ions

ASJC Scopus subject areas

  • Chemistry(all)

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Holm, A. P., Kauzlarich, S. M., Morton, S. A., Waddill, G. D., Pickett, W. E., & Tobin, J. G. (2002). XMCD characterization of the ferromagnetic state of Yb14MnSb11 Journal of the American Chemical Society, 124(33), 9894-9898. https://doi.org/10.1021/ja020564y

XMCD characterization of the ferromagnetic state of Yb14MnSb11 . / Holm, Aaron P.; Kauzlarich, Susan M.; Morton, Simon A.; Waddill, G. Dan; Pickett, Warren E.; Tobin, James G.

In: Journal of the American Chemical Society, Vol. 124, No. 33, 21.08.2002, p. 9894-9898.

Research output: Contribution to journalArticle

Holm, AP, Kauzlarich, SM, Morton, SA, Waddill, GD, Pickett, WE & Tobin, JG 2002, 'XMCD characterization of the ferromagnetic state of Yb14MnSb11 ', Journal of the American Chemical Society, vol. 124, no. 33, pp. 9894-9898. https://doi.org/10.1021/ja020564y
Holm AP, Kauzlarich SM, Morton SA, Waddill GD, Pickett WE, Tobin JG. XMCD characterization of the ferromagnetic state of Yb14MnSb11 Journal of the American Chemical Society. 2002 Aug 21;124(33):9894-9898. https://doi.org/10.1021/ja020564y
Holm, Aaron P. ; Kauzlarich, Susan M. ; Morton, Simon A. ; Waddill, G. Dan ; Pickett, Warren E. ; Tobin, James G. / XMCD characterization of the ferromagnetic state of Yb14MnSb11 In: Journal of the American Chemical Society. 2002 ; Vol. 124, No. 33. pp. 9894-9898.
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N2 - X-ray magnetic circular dichroism (XMCD) measurements on Yb14MnSb11 provide experimental evidence of a moment of 5 μB on Mn, with partial cancellation by an opposing moment on the Sb4 cage surrounding each Mn ion. The compound is isostructural to Ca14AISb11, with Mn occupying the AI site in the AISb4 9- discrete tetrahedral, anionic unit. Bulk magnetization measurements indicate a saturation moment of 3.90 ± 0.02 μB/formula unit consistent with four unpaired spins and implying a Mn3+, high-spin d4 state. XMCD measurements reveal that there is strong dichroism in the Mn L23 edge, the Sb M45 edge shows a weak dichroism indicating antialignment to the Mn, and the Yb N45 edge shows no dichroism. Comparisons of the Mn spectra with theoretical models for Mn2+ show excellent agreement. The bulk magnetization can be understood as Mn with a moment of 5 μB and a 2+ configuration, with cancellation of one spin by an antialigned moment from the Sb 5p band of the Sb4 cage surrounding the Mn.

AB - X-ray magnetic circular dichroism (XMCD) measurements on Yb14MnSb11 provide experimental evidence of a moment of 5 μB on Mn, with partial cancellation by an opposing moment on the Sb4 cage surrounding each Mn ion. The compound is isostructural to Ca14AISb11, with Mn occupying the AI site in the AISb4 9- discrete tetrahedral, anionic unit. Bulk magnetization measurements indicate a saturation moment of 3.90 ± 0.02 μB/formula unit consistent with four unpaired spins and implying a Mn3+, high-spin d4 state. XMCD measurements reveal that there is strong dichroism in the Mn L23 edge, the Sb M45 edge shows a weak dichroism indicating antialignment to the Mn, and the Yb N45 edge shows no dichroism. Comparisons of the Mn spectra with theoretical models for Mn2+ show excellent agreement. The bulk magnetization can be understood as Mn with a moment of 5 μB and a 2+ configuration, with cancellation of one spin by an antialigned moment from the Sb 5p band of the Sb4 cage surrounding the Mn.

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