J
Jack Hellerstedt
Researcher at Monash University, Clayton campus
Publications - 45
Citations - 1035
Jack Hellerstedt is an academic researcher from Monash University, Clayton campus. The author has contributed to research in topics: Dirac (software) & Topological insulator. The author has an hindex of 14, co-authored 39 publications receiving 818 citations. Previous affiliations of Jack Hellerstedt include Monash University & University of Minnesota.
Papers
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Journal ArticleDOI
Electric-field-tuned topological phase transition in ultrathin Na3Bi.
James L. Collins,Anton Tadich,Anton Tadich,Weikang Wu,Lídia C. Gomes,Lídia C. Gomes,J. N. B. Rodrigues,J. N. B. Rodrigues,Chang Liu,Jack Hellerstedt,Jack Hellerstedt,Hyejin Ryu,Hyejin Ryu,Shujie Tang,Sung-Kwan Mo,Shaffique Adam,Shaffique Adam,Shengyuan A. Yang,Shengyuan A. Yang,Michael S. Fuhrer,Mark T. Edmonds +20 more
TL;DR: The large bandgaps in both the conventional and quantum spin Hall phases, much greater than the thermal energy at room temperature, suggest that ultrathin Na3Bi is suitable for room-temperature topological transistor operation.
Journal ArticleDOI
Phase diagram of electrostatically doped SrTiO3.
Yeonbae Lee,Colin Clement,Jack Hellerstedt,Joseph Kinney,Laura Kinnischtzke,X. Leng,Stephen Snyder,Allen M Goldman +7 more
TL;DR: The surprising results are, with increasing carrier concentration, an apparent carrier-density dependent conductor-insulator transition, a regime of the anomalous Hall effect, suggesting magnetic ordering, and finally the appearance of superconductivity.
Journal ArticleDOI
Electric Field-Tuned Topological Phase Transition in Ultra-Thin Na3Bi - Towards a Topological Transistor
James L. Collins,Anton Tadich,Weikang Wu,Lídia C. Gomes,J. N. B. Rodrigues,Chang Liu,Jack Hellerstedt,Hyejin Ryu,Shujie Tang,Sung-Kwan Mo,Shaffique Adam,Shengyuan A. Yang,Michael S. Fuhrer,Mark T. Edmonds +13 more
TL;DR: In this paper, the authors used scanning probe microscopy/spectroscopy (STM/STS) and angle-resolved photoelectron spectroscopy to show that TDS Na3Bi is 2D topological insulators with bulk bandgaps >400 meV in the absence of electric field.
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Direct Observation of 2D Electrostatics and Ohmic Contacts in Template-Grown Graphene/WS2 Heterostructures
Changxi Zheng,Qianhui Zhang,Bent Weber,Hesameddin Ilatikhameneh,Fan Chen,Harshad Sahasrabudhe,Rajib Rahman,Shiqiang Li,Zhenchen Chen,Jack Hellerstedt,Yupeng Zhang,Wenhui Duan,Qiaoliang Bao,Michael S. Fuhrer +13 more
TL;DR: Electrostatic modeling demonstrates that the large depletion width of the graphene-WS2 junction reflects the electrostatics of the one-dimensional junction between two-dimensional materials.
Journal ArticleDOI
Stability and Surface Reconstruction of Topological Insulator Bi2Se3 on Exposure to Atmosphere
Mark T. Edmonds,Jack Hellerstedt,Jack Hellerstedt,Anton Tadich,Alex Schenk,Kane M. O'Donnell,Kane M. O'Donnell,Jacob Tosado,Jacob Tosado,Nicholas P. Butch,Nicholas P. Butch,Paul Syers,Johnpierre Paglione,Michael S. Fuhrer,Michael S. Fuhrer +14 more
TL;DR: In this paper, the stability of the surface of vacuum-cleaved topological insulator Bi2Se3 single crystals is investigated with high-resolution synchrotron-based photoelectron spectroscopy.