Investigation of Fe incorporation in LnCr2Al20 (Ln = La, Gd, Yb) with ⁵⁷Fe Mössbauer and single crystal X-ray diffraction

Authors

Larico J. Treadwell, Louisiana State University
Jacob D. McAlpin, Louisiana State University
Devin C. Schmitt, Louisiana State University
Michael J. Kangas, Louisiana State University
Moulay T. Sougrati, CNRS Centre National de la Recherche Scientifique
Neel Haldolaarachchige, Louisiana State University
David P. Young, Louisiana State University
Jean Claude Jumas, CNRS Centre National de la Recherche Scientifique
Julia Y. Chan, Louisiana State University

Document Type

Article

Publication Date

5-6-2013

Abstract

Crystal growth, structure determination, and magnetic properties of LnCr2Al20-xFex (Ln = La, Gd, Yb) adopting the CeCr2Al20 structure type with space group Fd3⋯m, a ∼ 14.5 Å, are reported. Single crystal X-ray diffraction and Mössbauer spectroscopy are employed to fully characterize the crystal structure of LnCr2Al20-xFex (Ln = La, Gd, Yb). LnCr2Al20-xFex (Ln = La, Gd, Yb) are the first pseudoternaries adopting the CeCr2Al20 structure type with a transition metal occupying the main group site. The Yb analogues are Pauli paramagnets with the Yb ion adopting an electronic configuration close to Yb2+, while the Gd analogues show paramagnetic behavior with no magnetic order down to 3 K. © 2013 American Chemical Society.

Publication Source (Journal or Book title)

Inorganic Chemistry

First Page

5055

Last Page

5062

Recommended Citation

Treadwell, L., McAlpin, J., Schmitt, D., Kangas, M., Sougrati, M., Haldolaarachchige, N., Young, D., Jumas, J., & Chan, J. (2013). Investigation of Fe incorporation in LnCr2Al20 (Ln = La, Gd, Yb) with ⁵⁷Fe Mössbauer and single crystal X-ray diffraction. Inorganic Chemistry, 52 (9), 5055-5062. https://doi.org/10.1021/ic302805n