Dirac materials

TO Wehling, AM Black-Schaffer… - Advances in Physics, 2014‏ - Taylor & Francis
A wide range of materials, like d-wave superconductors, graphene, and topological
insulators, share a fundamental similarity: their low-energy fermionic excitations behave as …

Topological insulators and superconductors

XL Qi, SC Zhang - Reviews of modern physics, 2011‏ - APS
Topological insulators are new states of quantum matter which cannot be adiabatically
connected to conventional insulators and semiconductors. They are characterized by a full …

Colloquium: Topological insulators

MZ Hasan, CL Kane - Reviews of modern physics, 2010‏ - APS
Topological insulators are electronic materials that have a bulk band gap like an ordinary
insulator but have protected conducting states on their edge or surface. These states are …

The birth of topological insulators

JE Moore - Nature, 2010‏ - nature.com
Certain insulators have exotic metallic states on their surfaces. These states are formed by
topological effects that also render the electrons travelling on such surfaces insensitive to …

Observation of a large-gap topological-insulator class with a single Dirac cone on the surface

Y **a, D Qian, D Hsieh, L Wray, A Pal, H Lin, A Bansil… - Nature physics, 2009‏ - nature.com
Recent experiments and theories have suggested that strong spin–orbit coupling effects in
certain band insulators can give rise to a new phase of quantum matter, the so-called …

Massive Dirac fermion on the surface of a magnetically doped topological insulator

YL Chen, JH Chu, JG Analytis, ZK Liu, K Igarashi… - Science, 2010‏ - science.org
In addition to a bulk energy gap, topological insulators accommodate a conducting, linearly
dispersed Dirac surface state. This state is predicted to become massive if time reversal …

A tunable topological insulator in the spin helical Dirac transport regime

D Hsieh, Y **a, D Qian, L Wray, JH Dil, F Meier… - Nature, 2009‏ - nature.com
Helical Dirac fermions—charge carriers that behave as massless relativistic particles with an
intrinsic angular momentum (spin) locked to its translational momentum—are proposed to …

Three-dimensional topological insulators

MZ Hasan, JE Moore - Annu. Rev. Condens. Matter Phys., 2011‏ - annualreviews.org
Topological insulators in three dimensions are nonmagnetic insulators that possess metallic
surface states (SSs) as a consequence of the nontrivial topology of electronic wavefunctions …

Superconductivity in and its Implications for Pairing <?format ?>in the Undoped Topological Insulator

YS Hor, AJ Williams, JG Checkelsky, P Roushan… - Physical review …, 2010‏ - APS
Bi 2 Se 3 is one of a handful of known topological insulators. Here we show that copper
intercalation in the van der Waals gaps between the Bi 2 Se 3 layers, yielding an electron …

Band structure engineering in (Bi1−xSbx)2Te3 ternary topological insulators

J Zhang, CZ Chang, Z Zhang, J Wen, X Feng… - Nature …, 2011‏ - nature.com
Topological insulators (TIs) are quantum materials with insulating bulk and topologically
protected metallic surfaces with Dirac-like band structure. The most challenging problem …