6 papers
Fabrication of high-quality topological insulator nanodevices from bulk-insulating air-sensitive Sb-BiSe
Linh T. Dang, Ayushi Solanki, Yongjian Wang +2
High-quality topological insulator (TI) materials are essential for the realization and detection of Majorana bound states (MBSs) in TI-superconductor hybrid platforms. Widely used…
Origin of anomalous p-type conductivity in monolayer Fe-doped MoS2
Xiangning Quan, Xiaoqiu Yuan, Junwei Zhang +13
Substitutional doping effectively modulates carrier polarity of semiconducting two-dimensional (2D) transition metal dichalcogenides (TMDs) like MoS2. Although Fe doping typically…
Microscopic origin of an exceptionally large phonon thermal Hall effect from charge puddles in a topological insulator
Rohit Sharma, Yongjian Wang, Yoichi Ando +2
We present the experimental observation of a drastically enhanced thermal Hall effect in the topological insulator material TlBiSbTe. Although heat transport…
Magnetic-field-induced nonlocal transport in the topological semimetal ZrTe
Yongjian Wang, A. A. Taskin, Yoichi Ando
Nonlocal transport, which goes beyond the Ohm's law, can be a key in understanding systems with topological order or edge states. Here we report an unusual nonlocal charge transpor…
Generic Chiral Anomaly and Planar Hall Effect in a Non-Weyl System
Yongjian Wang, Alexander Wowchik, Thomas Boemerich +3
The condensed-matter version of the chiral anomaly describes how electrons are pumped from a Weyl node with negative chirality to a Weyl node with positive chirality using parallel…
Universal Role of Combined Symmetry for the Protection of the Dirac Cone in Antiferromagnetic Topological Insulators
Asuka Honma, Noriyuki Kabeya, Seigo Souma +13
Antiferromagnetic topological insulators (AF TIs) are predicted to exhibit exotic physical properties such as gigantic optical and topological magnetoelectric responses. While a ke…