Speaker: Tyler Slade

Title: Design, discovery, and control of novel quantum materials

Host: Chunhui Chen

Abstract: Advancement in materials design and synthesis is foundational to progress in fundamental condensed

matter and applied materials research. Such work provides access to previously unexplored compositional

spaces where there is strong potential to uncover new compounds that display novel behavior and

functionalities. In this presentation, I will highlight recent examples of my work directed at the design,

discovery, and manipulation of new magnetic intermetallic phases. First, I will discuss the emerging

antagonistic pairs approach, which leverages pairs of elements with exceptionally strong immiscibility to

identify materials with low dimensional structural motifs (sheets, chains, or clusters of atoms), emphasizing

several newly discovered structural families and characterization of their physical behavior. Next, I will

provide a focused study of chemical substitution in the candidate flat-band metal La2(Co1-xNix)3. This

material features antiferromagnetic order supported by a corrugated kagome network of Co/Ni atoms, and

I will show how Ni substitution allows tuning of the Fermi level through a region of enhanced density of

states, highlighting the evolution of the magnetic order, transport behavior, and specific heat. In both

sections, I will discuss open questions raised by the work and opportunities for future research.