- Kealhofer, Robert;
- Jang, Sooyoung;
- Griffin, Sinéad M;
- John, Caolan;
- Benavides, Katherine A;
- Doyle, Spencer;
- Helm, T;
- Moll, Philip JW;
- Neaton, Jeffrey B;
- Chan, Julia Y;
- Denlinger, JD;
- Analytis, James G
We present the crystal structure, electronic structure, and transport properties of the material YbMnSb2, a candidate system for the investigation of Dirac physics in the presence of magnetic order. Our measurements reveal that this system is a low-carrier-density semimetal with a two-dimensional Fermi surface arising from a Dirac dispersion, consistent with the predictions of density-functional-theory calculations of the antiferromagnetic system. The low temperature resistivity is very large, suggesting that scattering in this system is highly efficient at dissipating momentum despite its Dirac-like nature.