Fabrication of a PtTe<sub>2 </sub>/ α-RuCl<sub>3</sub> van-der-Waals Heterostructure for Electronic Transport
POSTER
Abstract
PtTe₂ is an air-stable exfoliatable Dirac semimetal that features a type-II Dirac cone. In that cone, electrons follow a linear dispersion relation that is anisotropic along the z axis of momentum. The type-II Dirac Cone of PtTe₂ is 1 eV below the Fermi energy, which makes it hard to access through electronic transport experiments that involve PtTe₂ alone. α-RuCl₃ is a material that is known to be a very good electron acceptor. We construct a PtTe₂ and α-RuCl₃ heterostructure to hole dope PtTe₂ and potentially observe signatures of the type-II fermions under electronic transport. We discuss the methods involved in creating this heterostructure, how we isolate thin flakes of PtTe₂, and preliminary results on transport of a PtTe₂ / α-RuCl₃ heterostructure.
*The primary funding of this work was provided by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under award number DE-SC0018154 for Sample Fabrication and Electronic Transport Measurements. Sample characterization through Raman spectroscopy was funded through the Cal. State. Long Beach and the Ohio State University Partnership for Education and Research in Topological Materials, a National Science Foundation PREM, under Grant No. 2425133.
Presenters
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Joshua A Luna
- California State University, Long Beach