scholarly journals Two types of Dirac-cone surface states on the (111) surface of the topological crystalline insulator SnTe

2013 ◽  
Vol 88 (23) ◽  
Author(s):  
Y. Tanaka ◽  
T. Shoman ◽  
K. Nakayama ◽  
S. Souma ◽  
T. Sato ◽  
...  
Keyword(s):  
Surface States ◽  
Dirac Cone ◽  
Cone Surface ◽  
Topological Crystalline Insulator

scholarly journals Spin texture on the warped Dirac-cone surface states in topological insulators

2011 ◽  
Vol 84 (12) ◽  
Author(s):  
Susmita Basak ◽  
Hsin Lin ◽  
L. A. Wray ◽  
S.-Y. Xu ◽  
L. Fu ◽  
...  
Keyword(s):  
Topological Insulators ◽  
Surface States ◽  
Dirac Cone ◽  
Cone Surface ◽  
Spin Texture

scholarly journals Magnetic crystalline-symmetry-protected axion electrodynamics and field-tunable unpinned Dirac cones in EuIn2As2

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
S. X. M. Riberolles ◽  
T. V. Trevisan ◽  
B. Kuthanazhi ◽  
T. W. Heitmann ◽  
F. Ye ◽  
...  
Keyword(s):  
Density Functional ◽  
Surface States ◽  
Antiferromagnetic Order ◽  
Functional Theory ◽  
Magnetic Symmetry ◽  
Integer Quantum ◽  
Symmetry Protected ◽  
Topological Crystalline Insulator ◽  
Low Symmetry ◽  
Crystalline Symmetry

AbstractKnowledge of magnetic symmetry is vital for exploiting nontrivial surface states of magnetic topological materials. EuIn2As2 is an excellent example, as it is predicted to have collinear antiferromagnetic order where the magnetic moment direction determines either a topological-crystalline-insulator phase supporting axion electrodynamics or a higher-order-topological-insulator phase with chiral hinge states. Here, we use neutron diffraction, symmetry analysis, and density functional theory results to demonstrate that EuIn2As2 actually exhibits low-symmetry helical antiferromagnetic order which makes it a stoichiometric magnetic topological-crystalline axion insulator protected by the combination of a 180∘ rotation and time-reversal symmetries: $${C}_{2}\times {\mathcal{T}}={2}^{\prime}$$ C 2 × T = 2 ′ . Surfaces protected by $${2}^{\prime}$$ 2 ′ are expected to have an exotic gapless Dirac cone which is unpinned to specific crystal momenta. All other surfaces have gapped Dirac cones and exhibit half-integer quantum anomalous Hall conductivity. We predict that the direction of a modest applied magnetic field of μ0H ≈ 1 to 2 T can tune between gapless and gapped surface states.

scholarly journals Fragility of the Dirac Cone Splitting in Topological Crystalline Insulator Heterostructures

ACS Nano ◽  
2017 ◽  
Vol 12 (1) ◽  
pp. 617-626 ◽  
Author(s):  
Craig M. Polley ◽  
Ryszard Buczko ◽  
Alexander Forsman ◽  
Piotr Dziawa ◽  
Andrzej Szczerbakow ◽  
...  
Keyword(s):  
Dirac Cone ◽  
Topological Crystalline Insulator

scholarly journals Erratum: Observation of ultrahigh mobility surface states in a topological crystalline insulator by infrared spectroscopy

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Ying Wang ◽  
Guoyu Luo ◽  
Junwei Liu ◽  
R. Sankar ◽  
Nan-Lin Wang ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Surface States ◽  
Topological Crystalline Insulator

A methodical study of quantum phase engineering in topological crystalline insulator SnTe and related alloys

2019 ◽  
Vol 21 (38) ◽  
pp. 21633-21650 ◽  
Author(s):  
Mohsen Yarmohammadi ◽  
Kavoos Mirabbaszadeh
Keyword(s):  
Detailed Analysis ◽  
Surface States ◽  
Quantum Phase ◽  
Phase Engineering ◽  
Topological Crystalline Insulator

A detailed analysis of the perturbation effects on the quantum phase of SnTe(001) surface states.

Spin texture of flatten Dirac-cone surface state on W(110)

2017 ◽  
Author(s):  
Koji Miyamoto ◽  
◽  
Taichi Okuda ◽  
Henry Wortelen ◽  
Markus Donath ◽  
...  
Keyword(s):  
Surface State ◽  
Dirac Cone ◽  
Cone Surface ◽  
Spin Texture

scholarly journals Direct Evidence for the Dirac-Cone Topological Surface States in the Ternary ChalcogenideTlBiSe2

2010 ◽  
Vol 105 (13) ◽  
Author(s):  
Takafumi Sato ◽  
Kouji Segawa ◽  
Hua Guo ◽  
Katsuaki Sugawara ◽  
Seigo Souma ◽  
...  
Keyword(s):  
Direct Evidence ◽  
Surface States ◽  
Dirac Cone ◽  
Topological Surface

scholarly journals Observation of surface states on heavily indium-doped SnTe(111), a superconducting topological crystalline insulator

2016 ◽  
Vol 93 (7) ◽  
Author(s):  
C. M. Polley ◽  
V. Jovic ◽  
T.-Y. Su ◽  
M. Saghir ◽  
D. Newby ◽  
...  
Keyword(s):  
Surface States ◽  
Topological Crystalline Insulator
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