Crystal Structure and Magnetic Ordering of Cr<sub>3</sub>Fe<sub>4</sub>Ge<sub>4</sub>

ORAL

Abstract

3d transition metal based intermetallic compounds are interesting as they often host fragile or tunable magnetism [1]. Here we present the growth, in single crystalline form, and physical properties of a new 3d ternary Cr3Fe4Ge4 belonging to the space group P-31c at room temperature. Single crystal x-ray diffraction also revealed that the crystal structure has Cr and Fe antisite mixing. Both temperature dependent resistance and magnetization measurements show a phase transition at ~150 K. The nature of the phase transition will be discussed, as well as the effects of the Cr and Fe occupancy on the low temperature phase.



[1] Paul C. Canfield et al., Rep. Prog. Phys. 2016, 79, 084506.

*This work was done at the Ames National Laboratory and supported by U.S. DOE, Basic Energy Sciences, Material Science and Engineering Division under contract No. DE-AC02-07CH11358

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Presenters

  • Xiaoyi Su

    • Ames National Laboratory

Authors

  • Xiaoyi Su

    • Ames National Laboratory

  • Tyler J Slade

    • Ames National Laboratory

  • Kirill Kovnir

    • Iowa State University

  • Raquel A. Ribeiro

    • Iowa State University

  • Sergey L Bud'ko

    • Iowa State University
    • Ames National Laboratory, and Department of Physics and Astronomy, Iowa State University
    • Ames National Laboratory and Iowa State University

  • Paul C Canfield

    • Iowa State University
    • Ames National Laboratory, and Department of Physics and Astronomy, Iowa State University
    • Ames National Laboratory and Iowa State University