Colloidal nanocrystals: Viable model systems for electronic quantum materials?

JF Vliem, JR Moes, I Swart, D Vanmaekelbergh - Nano Research, 2024 - Springer
The field of colloidal nanocrystals has witnessed enormous progress in the last three
decades. For many families of nanocrystals, wet-chemical syntheses have been developed …

Time-reversal invariant finite-size topology

R Flores-Calderon, R Moessner, AM Cook - Physical Review B, 2023 - APS
We report finite-size topology in the quintessential time-reversal (TR) invariant systems, the
quantum spin Hall insulator (QSHI) and the three-dimensional, strong topological insulator …

Time-reversal invariant topological skyrmion phases

R Flores-Calderon, AM Cook - Physical Review B, 2023 - APS
Topological phases realized in time-reversal invariant (TRI) systems are foundational to the
experimental study of the broader canon of topological condensed matter as they do not …

Probing Spin-Dependent Ballistic Charge Transport at Single-Nanometer Length Scales

P Härtl, M Leisegang, J Kügel, M Bode - Nano Letters, 2023 - ACS Publications
The coherent transport of charge and spin is a key requirement of future devices for quantum
computing and communication. Scattering at defects or impurities may significantly reduce …

Twin-Free Growth of Ultrathin Bi2Te3 Films on CaF2(111)/Si(111)

S Hatta, S Higaki, H Okuyama, T Aruga - Crystal Growth & Design, 2024 - ACS Publications
The CaF2 (111) surface has no dangling bond, which allows it to be used as a substrate for
the van der Waals epitaxy of layered materials. In addition, a CaF2 (111) thin film can serve …

Probing edge state conductance in ultra‐thin topological insulator films

A Leis, M Schleenvoigt, K Moors… - Advanced quantum …, 2022 - Wiley Online Library
Quantum spin Hall (QSH) insulators have unique electronic properties, comprising a band
gap in their 2D interior and 1D spin‐polarized edge states in which current flows ballistically …

[HTML][HTML] Growth of ultrathin Bi2Se3 films by molecular beam epitaxy

S Nasir, WJ Smith, TE Beechem, S Law - Journal of Vacuum Science & …, 2023 - pubs.aip.org
Bi 2 Se 3 is a widely studied 3D topological insulator having potential applications in optics,
electronics, and spintronics. When the thickness of these films decreases to less than …

Probing spin-dependent charge transport at single-nanometer length scales

P Härtl, M Leisegang, J Kügel, M Bode - arXiv preprint arXiv:2303.00393, 2023 - arxiv.org
The coherent transport of charge and spin is one key requirement of future devices for
quantum computing and communication. Scattering at defects or impurities may seriously …

Nanoscale tip positioning with a multi-tip scanning tunneling microscope using topography images

A Leis, V Cherepanov, B Voigtländer… - Review of scientific …, 2022 - pubs.aip.org
Multi-tip scanning tunneling microscopy (STM) is a powerful method to perform charge
transport measurements at the nanoscale. With four STM tips positioned on the surface of a …

Observation and enhancement of room temperature bilinear magnetoelectric resistance in sputtered topological semimetal Pt3Sn

Y Fan, Z Cresswell, Y Yang, W Jiang, Y Lv… - npj Spintronics, 2024 - nature.com
Topological semimetal materials have attracted a great deal of attention due to their intrinsic
strong spin-orbit coupling, which leads to large charge-to-spin conversion efficiency and …