Alternating Nanolayers of Dielectric MgF2 and Metallic Ag as Hyperbolic Metamaterials: Probing Surface States and Optical Topological Phase Transition and Implications for Sensing Applications

2021 ◽  
Vol 4 (2) ◽  
pp. 2211-2217
Author(s):  
Tse-An Chen ◽  
Ieng-Wai Un ◽  
Chih-Chung Wei ◽  
Yu-Jung Lu ◽  
Din Ping Tsai ◽  
...  
Keyword(s):  
Phase Transition ◽  
Surface States ◽  
Topological Phase ◽  
Hyperbolic Metamaterials ◽  
Sensing Applications ◽  
Topological Phase Transition

Evolution of surface states in Bi1−xSbxalloys across the topological phase transition

2011 ◽  
Vol 83 (20) ◽  
Author(s):  
H. Guo ◽  
K. Sugawara ◽  
A. Takayama ◽  
S. Souma ◽  
T. Sato ◽  
...  
Keyword(s):  
Phase Transition ◽  
Surface States ◽  
Topological Phase ◽  
Topological Phase Transition

Pressure induced topological phase transition in layered Bi2S3

2017 ◽  
Vol 19 (43) ◽  
pp. 29372-29380 ◽  
Author(s):  
Ming Yang ◽  
Yong Zheng Luo ◽  
Ming Gang Zeng ◽  
Lei Shen ◽  
Yun Hao Lu ◽  
...  
Keyword(s):  
Phase Transition ◽  
Surface States ◽  
Topological Phase ◽  
Binary Component ◽  
Topological Phase Transition

We report pressure induced topological phase transition in the lightest bismuth based chalcogenide binary component and its surface states.

Volume expansive pressure (VEP) driven non-trivial topological phase transition in LiMgBi

2020 ◽  
Vol 22 (8) ◽  
pp. 4602-4609
Author(s):  
Raghottam M. Sattigeri ◽  
Sharad Babu Pillai ◽  
Prafulla K. Jha ◽  
Brahmananda Chakraborty
Keyword(s):  
Phase Transition ◽  
Surface States ◽  
Topological Phase ◽  
Heusler Compound ◽  
Topological Phase Transition ◽  
Pressure Driven

Half-Heusler compound LiMgBi exhibits pressure driven Topological Insulating (TI) nature with robust spin-locked dissipationless Fermion transport along the surface states.

scholarly journals Topological phase transition between a normal insulator and a topological metal state in a quasi-one-dimensional system

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Milad Jangjan ◽  
Mir Vahid Hosseini
Keyword(s):  
Phase Transition ◽  
Dimensional System ◽  
Inversion Symmetry ◽  
Topological Phase ◽  
Edge States ◽  
Zero Energy ◽  
One Dimensional ◽  
Topological Phase Transition ◽  
Metal State ◽  
Topological Metal

AbstractWe theoretically report the finding of a new kind of topological phase transition between a normal insulator and a topological metal state where the closing-reopening of bandgap is accompanied by passing the Fermi level through an additional band. The resulting nontrivial topological metal phase is characterized by stable zero-energy localized edge states that exist within the full gapless bulk states. Such states living on a quasi-one-dimensional system with three sublattices per unit cell are protected by hidden inversion symmetry. While other required symmetries such as chiral, particle-hole, or full inversion symmetry are absent in the system.

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