scholarly journals Effect of paramagnetic fluctuations on a Fermi-surface topological transition in two dimensions

2014 ◽  
Vol 90 (16) ◽  
Author(s):  
Sergey Slizovskiy ◽  
Joseph J. Betouras ◽  
Sam T. Carr ◽  
Jorge Quintanilla
Keyword(s):  
Fermi Surface ◽  
Two Dimensions ◽  
Topological Transition

Fermi surface renormalization in two dimensions

2004 ◽  
Vol 408-410 ◽  
pp. 254-256 ◽  
Author(s):  
H. Freire ◽  
E. Corrêa ◽  
A. Ferraz
Keyword(s):  
Fermi Surface ◽  
Two Dimensions

scholarly journals Observation of topological transition of Fermi surface from a spindle torus to a torus in bulk Rashba spin-split BiTeCl

2015 ◽  
Vol 92 (3) ◽  
Author(s):  
Fei-Xiang Xiang ◽  
Xiao-Lin Wang ◽  
Menno Veldhorst ◽  
Shi-Xue Dou ◽  
Michael S. Fuhrer
Keyword(s):  
Fermi Surface ◽  
Topological Transition ◽  
Rashba Spin

scholarly journals Topological Transition in a 3 nm Thick Al Film Grown by Molecular Beam Epitaxy

2019 ◽  
Vol 2019 ◽  
pp. 1-6
Author(s):  
Ankit Kumar ◽  
Guan-Ming Su ◽  
Chau-Shing Chang ◽  
Ching-Chen Yeh ◽  
Bi-Yi Wu ◽  
...  
Keyword(s):  
Molecular Beam Epitaxy ◽  
Gaas Substrate ◽  
Molecular Beam ◽  
Epitaxial Film ◽  
Two Dimensions ◽  
Quantum Devices ◽  
Topological Transition ◽  
Ideal System ◽  
Bkt Transition ◽  
Physical Phenomena

We have performed detailed transport measurements on a 3 nm thick (as-grown) Al film on GaAs prepared by molecular beam epitaxy (MBE). Such an epitaxial film grown on a GaAs substrate shows the Berezinskii-Kosterlitz-Thouless (BKT) transition, a topological transition in two dimensions. Our experimental data shows that the MBE-grown Al nanofilm is an ideal system for probing interesting physical phenomena such as the BKT transition and superconductivity. The increased superconductor transition temperature (~2.4 K) compared to that of bulk Al (1.2 K), together with the ultrathin film quality, may be advantageous for future superconductor-based quantum devices and quantum information technology.

scholarly journals Catastrophe theory classification of Fermi surface topological transitions in two dimensions

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Anirudh Chandrasekaran ◽  
Alex Shtyk ◽  
Joseph J. Betouras ◽  
Claudio Chamon
Keyword(s):  
Fermi Surface ◽  
Catastrophe Theory ◽  
Two Dimensions ◽  
Topological Transitions
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