Graphene-like two-dimensional materials

M Xu, T Liang, M Shi, H Chen - Chemical reviews, 2013 - ACS Publications
Graphene is composed of a single layer of carbon atoms arranged in a two-dimensional
(2D) honeycomb lattice. It is a fundamental building block for a range of well-known carbon …

Magnetic topological insulators and quantum anomalous hall effect

X Kou, Y Fan, M Lang, P Upadhyaya… - Solid State …, 2015 - Elsevier
When the magnetic order is introduced into topological insulators (TIs), the time-reversal
symmetry (TRS) is broken, and the non-trivial topological surface is driven into a new …

Topological insulator materials

Y Ando - Journal of the Physical Society of Japan, 2013 - journals.jps.jp
Topological insulators represent a new quantum state of matter which is characterized by
peculiar edge or surface states that show up due to a topological character of the bulk wave …

Magnetization switching through giant spin–orbit torque in a magnetically doped topological insulator heterostructure

Y Fan, P Upadhyaya, X Kou, M Lang, S Takei… - Nature materials, 2014 - nature.com
Recent demonstrations of magnetization switching induced by in-plane current in heavy
metal/ferromagnetic heterostructures (HMFHs) have drawn great attention to spin torques …

Precise quantization of the anomalous Hall effect near zero magnetic field

AJ Bestwick, EJ Fox, X Kou, L Pan, KL Wang… - Physical review …, 2015 - APS
We report a nearly ideal quantum anomalous Hall effect in a three-dimensional topological
insulator thin film with ferromagnetic doping. Near zero applied magnetic field we measure …

Electric-field control of spin–orbit torque in a magnetically doped topological insulator

Y Fan, X Kou, P Upadhyaya, Q Shao, L Pan… - Nature …, 2016 - nature.com
Electric-field manipulation of magnetic order has proved of both fundamental and
technological importance in spintronic devices. So far, electric-field control of …

Manifestation of Topological Protection in Transport Properties of Epitaxial Thin Films

AA Taskin, S Sasaki, K Segawa, Y Ando - Physical review letters, 2012 - APS
The massless Dirac fermions residing on the surface of three-dimensional topological
insulators are protected from backscattering and cannot be localized by disorder, but such …

Accurate electronic properties and non-linear optical response of two-dimensional MA2Z4

JS Yang, L Zhao, LI Shi-Qi, H Liu, L Wang, M Chen… - Nanoscale, 2021 - pubs.rsc.org
Two-dimensional MA2Z4 (M= Mo, W, V, Nb, Ta, Ti, Zr, Hf, or Cr; A= Si or Ge; Z= N, P, or As)
is a new lead in the 2D family, because it exhibits versatile properties by tuning the …

Proximity induced high-temperature magnetic order in topological insulator-ferrimagnetic insulator heterostructure

M Lang, M Montazeri, MC Onbasli, X Kou, Y Fan… - Nano …, 2014 - ACS Publications
Introducing magnetic order in a topological insulator (TI) breaks time-reversal symmetry of
the surface states and can thus yield a variety of interesting physics and promises for novel …

Metal-to-insulator switching in quantum anomalous Hall states

X Kou, L Pan, J Wang, Y Fan, ES Choi, WL Lee… - Nature …, 2015 - nature.com
After decades of searching for the dissipationless transport in the absence of any external
magnetic field, quantum anomalous Hall effect (QAHE) was recently achieved in magnetic …