Spin-dynamics of the Lieb lattice with variable exchange parameters

ORAL

Abstract

In this talk, we discuss the effects of variable exchange interactions on the spin dynamics of the Lieb lattice. Using a Holstein-Primakoff expansion of the Heisenberg Hamiltonian, we determine the magnetic phase diagram for various magnetic configurations as well as the spin-wave dynamics with multiple nearest-neighbor and next-nearest-neighbor interactions. We also discuss the evolution of a Lieb lattice transforming into a Kagome lattice and how the accompanying respective magnetic configurations change during this process, and whether they remain stable.

*J.P. and J.T.H acknowledge support from the Institute for Materials Science at Los Alamos National Laboratory

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Presenters

  • Jose H Pagan

    • University of North Florida

Authors

  • Jose H Pagan

    • University of North Florida

  • Avadh Saxena

    • Theoretical Division (T-4), Los Alamos National Laboratory
    • Los Alamos National Laboratory
    • Los Alamos National Lab
    • Los Alamos Natl Lab

  • Jason Haraldsen

    • University of North Florida
    • Physics, University of North Florida