Published January 8, 2025 | Version v1
Journal article Open

Data for Manuscript: Interleaved bond frustration in a triangular lattice antiferromagnet

Authors/Creators

  • 1. ROR icon University of California, Santa Barbara
  • 2. ROR icon Carnegie Mellon University
  • 3. ROR icon Oak Ridge National Laboratory
  • 4. University of California Santa Barbara
  • 5. Cornell University High Energy Synchrotron Source
  • 6. Stanford University
  • 7. ROR icon Argonne National Laboratory

Description

Frustration of long-range order via lattice geometries serves to amplify fluctuations of the order parameter and generate unconventional ground states that are highly sensitive to perturbations.  Traditionally, this concept of geometric frustration is used to engineer unconventional magnetic states in a variety of materials; however, the charge degree of freedom and bond order can be similarly frustrated. Finding materials that host both frustrated magnetic and bond networks holds promise for engineering structural and magnetic states with the potential of coupling to one another via either the magnetic sector (via magnetic field) or via the lattice sector (via strain).  In this paper, we identify an unusual instance of this coexistence in the triangular lattice antiferromagnetic compounds LnCd3P3 (Ln = La, Ce, Pr, and Nd). These compounds feature two-dimensional planes of unique trigonal-planar CdP3 units that manifest an underlying bond instability with its long-range ordering frustrated via emergent kagome ice bond correlations. Our results establish LnCd3P3 as a rare class of materials where frustrated magnetism across a tunable rare-earth triangular network is embedded within a dopable semiconductor with a frustrated bond order instability.

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Related works

Is supplement to
Journal article: 10.1038/s41563-025-02380-x (DOI)