Competing energetic states in γ-Fe<sub>2</sub>WO<sub>6</sub> with strong spin-charge-lattice coupling

ORAL

Abstract

We report magnetic and electronic properties of γ-Fe2WO6 via neutron powder diffraction measurements and first-principles density function theory calculations. We reveal a magnetic ground state which is distinct from an earlier report [1], despite the fact that both materials studied have the same space group but with slightly different atomic positions. Interestingly, both spin structures are well captured by first-principles calculations. Furthermore, we show that the spin structures of this system are correlated with electronic properties, with one being insulating and the other being metallic. These features suggest that γ-Fe2WO6 exhibits competing energetic states in which spin, charge, and lattice degrees of freedom are strongly coupled to each other.

[1] H. Pinto, M. Melamud, and H. Shaked, Acta Crystallogr., Sect. A: Cryst. Phys., Diffr., Theor. Gen. Crystallogr. 33, 663 (1977).

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Presenters

  • Milos Sretenovic

    • Department of Physics and Astronomy, Michigan State University

Authors

  • Milos Sretenovic

    • Department of Physics and Astronomy, Michigan State University

  • Satoshi Okamoto

    • Oak Ridge National Lab
    • Materials Science and Technology Division, Oak Ridge National Laboratory
    • Oak Ridge National Laboratory

  • Gordon Peiker

    • University of California San Diego

  • Xudong Tang

    • Department of Physics and Astronomy, Michigan State University

  • Heda Zhang

    • Department of Physics and Astronomy, Michigan State University

  • CQ Xu

    • Department of Physics and Astronomy, Michigan State University

  • Thomas W Heitmann

    • University of Missouri
    • University of Missouri Research Reactor
    • The Missouri Research Reactor, University of Missouri, Columbia, Missouri
    • Missouri Research Reactor, University of Missouri
    • University of Missouri Research Reactor, University of Missouri

  • Clarina Dela Cruz

    • Oak Ridge National Lab
    • Materials Science and Technology Division, Oak Ridge National Laboratory

  • Xianglin Ke

    • Michigan State University
    • Department of Physics and Astronomy, Michigan State University