%0 Journal Article %1 Thenapparambil_2023 %A Thenapparambil, Arya %A dos Santos, Graciely Elias %A Li, Chang-An %A Abdelghany, Mohamed %A Beugeling, Wouter %A Buhmann, Hartmut %A Gould, Charles %A Zhang, Song-Bo %A Trauzettel, Björn %A Molenkamp, Laurens W. %D 2023 %I American Chemical Society (ACS) %J Nano Letters %K myown qt %N 15 %P 6914–6919 %R 10.1021/acs.nanolett.3c01508 %T Fluctuations in Planar Magnetotransport Due to Tilted Dirac Cones in Topological Materials %V 23 %X Fluctuations in planar magnetotransport are ubiquitous in topological HgTe structures, in both tensile (topological insulator) and compressively strained layers (Weyl semimetal phase). We show that the common reason for the fluctuations is the presence of tilted Dirac cones combined with the formation of charge puddles. The origin of the tilted Dirac cones is the mix of the Zeeman term due to the in-plane magnetic field and quadratic contributions to the dispersion relation. We develop a network model that mimics the transport of tilted Dirac fermions in the landscape of charge puddles. The model captures the essential features of the experimental data. It should be relevant for the interpretation of planar magnetotransport in a variety of topological and small band gap materials.

@article{Thenapparambil_2023, abstract = {Fluctuations in planar magnetotransport are ubiquitous in topological HgTe structures, in both tensile (topological insulator) and compressively strained layers (Weyl semimetal phase). We show that the common reason for the fluctuations is the presence of tilted Dirac cones combined with the formation of charge puddles. The origin of the tilted Dirac cones is the mix of the Zeeman term due to the in-plane magnetic field and quadratic contributions to the dispersion relation. We develop a network model that mimics the transport of tilted Dirac fermions in the landscape of charge puddles. The model captures the essential features of the experimental data. It should be relevant for the interpretation of planar magnetotransport in a variety of topological and small band gap materials.}, added-at = {2023-11-28T09:35:26.000+0100}, author = {Thenapparambil, Arya and dos Santos, Graciely Elias and Li, Chang-An and Abdelghany, Mohamed and Beugeling, Wouter and Buhmann, Hartmut and Gould, Charles and Zhang, Song-Bo and Trauzettel, Björn and Molenkamp, Laurens W.}, biburl = {https://www.bibsonomy.org/bibtex/29e07c77b8e1ff14e4ea2d3211d88b2f4/ep3qt}, doi = {10.1021/acs.nanolett.3c01508}, interhash = {5c2c3d1468febaa5a017331e585d8203}, intrahash = {9e07c77b8e1ff14e4ea2d3211d88b2f4}, issn = {1530-6992}, journal = {Nano Letters}, keywords = {myown qt}, month = {07}, number = 15, pages = {6914–6919}, publisher = {American Chemical Society (ACS)}, timestamp = {2023-11-28T09:35:26.000+0100}, title = {Fluctuations in Planar Magnetotransport Due to Tilted Dirac Cones in Topological Materials}, volume = 23, year = 2023 }