# A novel artificial condensed matter lattice and a new platform for one-dimensional topological phases

@article{Belopolski2017ANA, title={A novel artificial condensed matter lattice and a new platform for one-dimensional topological phases}, author={Ilya Belopolski and Su-Yang Xu and Nikesh Koirala and Chang Liu and Guang Bian and Vladimir N. Strocov and Guoqing Chang and Madhab Neupane and Nasser Alidoust and D. Sevilla Sanchez and Hao Zheng and Matthew Brahlek and V. A. Rogalev and Timur K. Kim and Nicholas Clark Plumb and Chaoyu Chen and François Bertran and Patrick Le F{\`e}vre and Amina Taleb-Ibrahimi and Maria Carmen Asensio and Ming Shi and Hsin Lin and Moritz Hoesch and Seongshik Oh and M Zahid Hasan}, journal={Science Advances}, year={2017}, volume={3} }

Topologically protected electron states arranged artificially in real space form a highly tunable emergent atomic chain. Engineered lattices in condensed matter physics, such as cold-atom optical lattices or photonic crystals, can have properties that are fundamentally different from those of naturally occurring electronic crystals. We report a novel type of artificial quantum matter lattice. Our lattice is a multilayer heterostructure built from alternating thin films of topological and…

## 46 Citations

Tunable Dirac interface states in topological superlattices

- PhysicsPhysical Review B
- 2018

Relativistic Dirac fermions are ubiquitous in condensed matter physics. Their mass is proportional to the material energy gap and the ability to control and tune the mass has become an essential tool…

Topological nanomaterials

- PhysicsNature Reviews Materials
- 2019

The past decade has witnessed the emergence of a new frontier in condensed matter physics: topological materials with an electronic band structure belonging to a different topological class from that…

One-dimensional topological metal

- PhysicsPhysical Review B
- 2019

We propose a new type of topological states of matter exhibiting topologically nontrivial edge states (ESs) within gapless bulk states (GBSs) protected by both spin rotational and reflection…

Miniband engineering and topological phase transitions in topological-insulator–normal-insulator superlattices

- Physics
- 2021

Periodic stacking of topologically trivial and non-trivial layers with opposite symmetry of the valence and conduction bands induces topological interface states that, in the strong coupling limit,…

Engineering Topological Superlattices and Phase Diagrams.

- Physics, Materials ScienceNano letters
- 2019

This orchestrated study shows how the electronic properties of topological superlattices evolve with unit-layer thicknesses and utilizes the weak antilocalization effect as a tool to gain quantitative insights into the evolution of conducting channels within each set of heterostructures.

Tunability of spin-dependent secondary topological interface states induced in an optical complex superlattice

- PhysicsPhysical Review B
- 2021

The past decade has witnessed a booming development of topological photonics, which revolutionizes the methodology for controlling the behavior of light. A gigantic achievement is to engineer robust…

Realization of photonic charge-2 Dirac point by engineering super-modes in topological superlattices

- Physics
- 2019

Quite recently, an unconventional variety of fourfold linear band degeneracy points has been discovered in certain condensed-matter systems. Contrary to standard 3-D Dirac monopoles, these quadruple…

Interface induced quantized spin Hall response in three-dimensional topological insulator/normal insulator heterostructures

- PhysicsJournal of Magnetism and Magnetic Materials
- 2018

Controlling Topological States in Topological/Normal Insulator Heterostructures

- Materials ScienceACS omega
- 2018

The results for IV–VI compounds show the interface gap tunability by appropriately controlling the NI thickness, which can be explored for device design.

Topological photonic Tamm states and the Su-Schrieffer-Heeger model

- Physics, MathematicsPhysical Review A
- 2020

In this paper we study the formation of topological Tamm states at the interface between a semi-infinite one-dimensional photonic-crystal and a metal. We show that when the system is topologically…

## References

SHOWING 1-10 OF 47 REFERENCES

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

- Physics
- 2009

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 topological insulator,…

Experimental realization of the topological Haldane model with ultracold fermions

- PhysicsNature
- 2014

The experimental realization of the Haldane model and the characterization of its topological band structure are reported, using ultracold fermionic atoms in a periodically modulated optical honeycomb lattice and a direct extension to realize spin-dependent topological Hamiltonians is proposed.

Topological insulators, topological superconductors and Weyl fermion semimetals: discoveries, perspectives and outlooks

- Physics
- 2015

Unlike string theory, topological physics in lower dimensional condensed matter systems is an experimental reality since the bulk-boundary correspondence can be probed experimentally in lower…

Three-Dimensional Topological Insulators

- PhysicsAnnual Review of Condensed Matter Physics
- 2011

Topological insulators in three dimensions are nonmagnetic insulators that possess metallic surface states (SSs) as a consequence of the nontrivial topology of electronic wavefunctions in the bulk of…

Topological insulators and superconductors

- Physics
- 2011

Topological insulators are new states of quantum matter which cannot be adiabatically connected to conventional insulators and semiconductors. They are characterized by a full insulating gap in the…

Colloquium : Topological insulators

- Physics
- 2010

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 possible due to…

Observation of quantum-tunnelling-modulated spin texture in ultrathin topological insulator Bi2Se3 films.

- PhysicsNature communications
- 2014

Understanding the spin-texture behaviour of boundary modes in ultrathin topological insulator films is critically essential for the design and fabrication of functional nanodevices. Here, by using…

Weyl semimetal in a topological insulator multilayer.

- PhysicsPhysical review letters
- 2011

The Weyl semimetal has a nonzero dc conductivity at zero temperature, but Drude weight vanishing as T(2), and is thus an unusual metallic phase, characterized by a finite anomalous Hall conductivity and topologically protected edge states.

Topological Insulators and Topological Superconductors

- Physics
- 2013

This graduate-level textbook is the first pedagogical synthesis of the field of topological insulators and superconductors, one of the most exciting areas of research in condensed matter physics.…

Topological insulators in Bi2Se3, Bi2Te3 and Sb2Te3 with a single Dirac cone on the surface

- Physics
- 2009

Topological insulators are new states of quantum matter in which surface states residing in the bulk insulating gap of such systems are protected by time-reversal symmetry. The study of such states…