Emergence of Unconventional Superconductivity in a Two-Dimensional sp Semimetal with Topological Nodal Lines

2021 ◽  
Vol 18 ◽  
pp. 05
Author(s):  
Yoshihiko Okamoto
Keyword(s):  
Unconventional Superconductivity ◽  
Two Dimensional ◽  
Nodal Lines

scholarly journals Two-dimensional Weyl points and nodal lines in pentagonal materials and their optical response

Nanoscale ◽  
2021 ◽  
Author(s):  
Sergio Bravo ◽  
M. Pacheco ◽  
V. Nuñez ◽  
J. D. Correa ◽  
Leonor Chico
Keyword(s):  
First Principles ◽  
Optical Response ◽  
Symmetry Analysis ◽  
Two Dimensional ◽  
First Principles Calculations ◽  
Nodal Lines

A symmetry analysis combined with first-principles calculations of two-dimensional pentagonal materials (PdSeTe, PdSeS, InP5 and GeBi2) based on the Cairo tiling reveal nontrivial spin textures, nodal lines and Weyl points.

Coexistence of open and closed type nodal line topological semimetals in two dimensional B2C

2018 ◽  
Vol 6 (5) ◽  
pp. 1206-1214 ◽  
Author(s):  
P. Zhou ◽  
Z. S. Ma ◽  
L. Z. Sun
Keyword(s):  
Nodal Line ◽  
Two Dimensional ◽  
Nodal Lines ◽  
Closed Type ◽  
Topological Semimetal ◽  
Topological Semimetals

The detection of open and closed type nodal lines in the bilayer topological semimetal B2C on the substrate of Cu(110).

Time-reversal-breaking Weyl nodal lines in two-dimensional A3C2 (A = Ti, Zr, Hf) intrinsically ferromagnetic materials with high Curie temperature

Nanoscale ◽  
2021 ◽  
Author(s):  
Feng Zhou ◽  
Ying Liu ◽  
Minquan KUANG ◽  
Peng Wang ◽  
Jianhua WANG ◽  
...  
Keyword(s):  
Curie Temperature ◽  
Time Reversal ◽  
Three Dimensional ◽  
Ferromagnetic Materials ◽  
High Curie Temperature ◽  
Two Dimensional ◽  
Nodal Lines ◽  
Spin Polarized

Most materials that feature nontrivial topological band topology are spin-degenerate and three dimensional, strongly restricting them from application in spintronic nanodevices. Hence, two-dimensional (2D) intrinsically spin-polarized systems with rich topological...

Signatures of unconventional superconductivity in the LaAlO3 / SrTiO3 two-dimensional system

2017 ◽  
Vol 95 (14) ◽  
Author(s):  
D. Stornaiuolo ◽  
D. Massarotti ◽  
R. Di Capua ◽  
P. Lucignano ◽  
G. P. Pepe ◽  
...  
Keyword(s):  
Dimensional System ◽  
Unconventional Superconductivity ◽  
Two Dimensional ◽  
Two Dimensional System

scholarly journals Gate-tunable pairing channels in superconducting non-centrosymmetric oxides nanowires

2022 ◽  
Vol 7 (1) ◽  
Author(s):  
Gyanendra Singh ◽  
Claudio Guarcello ◽  
Edouard Lesne ◽  
Dag Winkler ◽  
Tord Claeson ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Time Reversal ◽  
Inversion Symmetry ◽  
Unconventional Superconductivity ◽  
Magnetic Field Direction ◽  
Spin Orbit Coupling ◽  
Two Dimensional ◽  
Rashba Spin ◽  
Spin Singlet ◽  
The Magnetic Field

AbstractTwo-dimensional SrTiO3-based interfaces stand out among non-centrosymmetric superconductors due to their intricate interplay of gate-tunable Rashba spin-orbit coupling and multi-orbital electronic occupations, whose combination theoretically prefigures various forms of non-standard superconductivity. By employing superconducting transport measurements in nano-devices we present strong experimental indications of unconventional superconductivity in the LaAlO3/SrTiO3 interface. The central observations are the substantial anomalous enhancement of the critical current by small magnetic fields applied perpendicularly to the plane of electron motion, and the asymmetric response with respect to the magnetic field direction. These features cannot be accommodated within a scenario of canonical spin-singlet superconductivity. We demonstrate that the experimental observations can be described by a theoretical model based on the coexistence of Josephson channels with intrinsic phase shifts. Our results exclude a time-reversal symmetry breaking scenario and suggest the presence of anomalous pairing components that are compatible with inversion symmetry breaking and multi-orbital physics.

A Simple Technique for Maximizing the Fundamental Frequency of Vibrating Structures

2000 ◽  
Vol 122 (4) ◽  
pp. 341-349 ◽  
Author(s):  
J. H. Ong ◽  
G. H. Lim
Keyword(s):  
Natural Frequency ◽  
Dimensional Analysis ◽  
Simple Technique ◽  
Nodal Line ◽  
The Other ◽  
Two Dimensional ◽  
Nodal Lines ◽  
Vibrating Structures ◽  
Original Configuration ◽  
The Ideal

A general approach for finding the optimal support locations to maximize the fundamental natural frequency of vibrating structures is described in this paper. The key to the procedure is to place the necessary supports in such a way, so as to eliminate the lower modes from the original configuration. This is accomplished by placing supports along the nodal lines of the highest possible mode from the original configuration, so that all the other lower modes are eliminated by the introduction of new or extra supports to the structure. For two-dimensional analysis, the average driving point residues calculated along a nodal line is used as an indicator for finding the vicinity of the ideal support locations. [S1043-7398(00)00504-1]

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