Export citation

Export citation

Choose format for download:

Download Citation

    Synthesis of cobalt grown from Co-S eutectic in high magnetic fields

    Steven Flynn1,*, Caeli L. Benyacko1,†, Matúš Mihalik2,‡, Jared Lee1,§, Fuyan Ma3, Michael E. Bates1,∥, Shubham Sinha1,¶, Khalil A. Abboud3, Marian Mihalik2 et al.

    Mark W. Meisel1,4,5,# and James J. Hamlin1,**

    • *Present address: Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, USA.
    • †Present address: Materials Department, University of California, Santa Barbara, California 93106-5050, USA.
    • ‡Deceased, 23 April 2025.
    • §Present address: Department of Physics, Syracuse University, Syracuse, New York 13244, USA.
    • ∥Present address: Sandia National Laboratories, Albuquerque, New Mexico 87185, USA.
    • Present address: Carnegie Institute for Science, Washington, DC 20015, USA.
    • #Contact author: meisel@ufl.edu
    • **Contact author: jhamlin@ufl.edu

    Phys. Rev. Materials 9, 094401 – Published 2 September, 2025

    DOI: https://doi.org/10.1103/9bb3-4pby

    Abstract

    Samples of Co were grown directly in the ferromagnetic state under equilibrium conditions using a cobalt sulfide flux. Magnetic fields up to 9 T were applied during growth, and isolated Co products exhibit progressively elongated morphologies, from cubes to rectangular rods to needlelike tendrils with poorly defined facets. The degree of elongation of the major axis was found to correlate with magnetic field direction, strength, and gradient. Two-dimensional x-ray diffraction data indicate some level of polycrystallinelike samples, and quantitative analyses (Le Bail and Rietveld) of the one-dimensional data confirm the presence of hcp and fcc phases. The magnetic responses indicate a partial alignment of the magnetic easy axis of the hcp phase along the magnetic field present during growth.

    Physics Subject Headings (PhySH)

    Authorization Required

    We need you to provide your credentials before accessing this content.

    Supplemental Material (Subscription Required)

    References (Subscription Required)

    Outline

    Information

    Sign In to Your Journals Account

    Filter

    Filter

    Article Lookup

    Enter a citation