Scientific Achievement
Researchers in the Non-Equilibrium Magnetic Materials Program showed that disorder induced by growth at low temperature (230K) causes strong localization and electron-electron interactions for x=1,2,3 due to strong spin-orbit coupling
Significance and Impact
Spin and charge transport in this quantum material can be tuned via disorder, which is controlled by growth temperature, and composition x.
Research Details
- Synthesized BixTeI films at room temperature (RT) and 230K (LT) for x =1-3. High resolution electron microscopy (TEM and FEM) shows increased disorder in LT films
- Magnetotransport shows significantly reduced conductivity at all measurement temp for similar x and its analysis shows strong Coulomb interactions, weak localization and anti-localization effects
- No evidence of topological states but further spectroscopic measurements are needed
Publication Details
P. Corbae, N. Taufertshofer, E. Kennedy, M. Scott, F. Hellman, Physical Review Materials (2024).
Work was performed in part at the Molecular Foundry.
