51 citations · 183 across the 9 of their papers we have counts for
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Understanding Bulk Defects in Topological Insulators from Nuclear-Spin Interactions
Dimitrios Koumoulis, Belinda Leung, Thomas C. Chasapis +4
Non-invasive local probes are needed to characterize bulk defects in binary and ternary chalcogenides. These defects contribute to the non-ideal behavior of topological insulators.…
Site-Specific Contributions to the Band Inversion in a Topological Crystalline Insulator
Dimitrios Koumoulis, Thomas Christos Chasapis, Belinda Leung +5
In a topological crystalline insulator (TCI) the inversion of the bulk valence and conduction bands is a necessary condition to observe surface metallic states. Solid solutions of…
Two Band Model Interpretation of the p to n Transition in Ternary Tetradymite Topological Insulators
T. C. Chasapis, D. Koumoulis, B. Leung +5
The requirement for large bulk resistivity in topological insulators has led to the design of complex ternary and quaternary phases with balanced donor and acceptor levels. A commo…
Understanding the role and interplay of heavy hole and light hole valence bands in the thermoelectric properties of PbSe
Thomas C. Chasapis, Yeseul Lee, Euripides Hatzikraniotis +4
The thermoelectric properties of PbSe have significantly improved in recent years reaching figures of merit ZT 1.6. The transport properties of the hole doped high temperature ther…