# A new platform for topological quantum phenomena : Topological Insulator states in thermoelectric Heusler-related ternary compounds

@article{Lin2010ANP, title={A new platform for topological quantum phenomena : Topological Insulator states in thermoelectric Heusler-related ternary compounds}, author={H. Lin and L. Andrew Wray and Y. Y. Xia and Shuang Jia and Robert J. Cava and Arun Bansil and M. Zahid Hasan}, journal={arXiv: Mesoscale and Nanoscale Physics}, year={2010} }

Topological insulators (TI) realize a novel state of quantum matter that are distinguished by topological invariants of bulk band structure rather than spontaneously broken symmetries. A number of exotic quantum phenomena have been predicted to exist in multiply-connected geometries which require an enormous amount of materials flexibility. We have extended our previous search for TI materials from binary (Bi2X3 series) to the thermoelectric ternary compounds. We discover that the distorted… Expand

#### 157 Citations

Topological insulators and thermoelectric materials

- Materials Science, Physics
- 2012

Topological insulators (TIs) are a new quantum state of matter which have gapless surface states inside the bulk energy gap [1–4]. Starting with the discovery of two-dimensional TIs, the HgTe-based… Expand

Topological Surface States: A New Type of 2D Electron Systems

- Physics
- 2013

Abstract Topological Surface States (TSS) represent new types of two dimensional electron systems with novel and unprecedented properties distinct from any quantum Hall-like or spin-Hall effects.… Expand

Emergent quantum confinement at topological insulator surfaces.

- Physics, Medicine
- Nature communications
- 2012

It is demonstrated that a conceptually simple model, implementing a semiconductor-like band bending in a parameter-free tight-binding supercell calculation, can quantitatively explain the entire measured hierarchy of electronic states. Expand

Engineering three-dimensional topological insulators in Rashba-type spin-orbit coupled heterostructures

- Physics, Medicine
- Nature communications
- 2013

A theoretical formalism is developed to show that a three-dimensional topological insulator can be designed artificially via stacking bilayers of two-dimensional Fermi gases with opposite Rashba-type spin-orbit coupling on adjacent layers, and with interlayer quantum tunneling. Expand

Half-Heusler compounds as a new class of three-dimensional topological insulators.

- Physics, Medicine
- Physical review letters
- 2010

A definitive proof of the strained LaPtBi as a 3DTI is provided by directly calculating the topological Z2 invariants in systems without inversion symmetry. Expand

Topological Insulator Materials

- Materials Science, Physics
- 2013

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 functions. This… Expand

Single-Dirac-cone Z2 topological insulator phases in distorted Li2AgSb-class and related quantum critical Li-based spin-orbit compounds

- Physics
- 2010

We have extended our new materials class search for the experimental realization of Z2 topological insulators from binary [Bi2Se3-class, Xia et.al., Nature Phys. 5, 398 (2009)] and the ternary… Expand

Proximity effects in topological insulator heterostructures

- Physics
- 2013

Topological insulators (TIs) are bulk insulators that possess robust helical conducting states along their interfaces with conventional insulators. A tremendous research effort has recently been… Expand

Organic topological insulators in organometallic lattices.

- Materials Science, Physics
- Nature communications
- 2013

A family of two-dimensional organic topological insulators made of organometallic lattices is predicted, designed by assembling molecular building blocks of triphenyl-metal compounds with strong spin-orbit coupling into a hexagonal lattice, to exhibit nontrivial topological edge states that are robust against significant lattice strain. Expand

Coexistence of the topological state and a two-dimensional electron gas on the surface of Bi(2)Se(3).

- Physics, Medicine
- Nature communications
- 2010

It is shown that the single Dirac cone comprising the topological state of the prototypical topological insulator Bi(2)Se(3) can co-exist with a two-dimensional electron gas (2DEG), a cornerstone of conventional electronics. Expand

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