Spin-triplet superconductor–quantum anomalous Hall insulator–spin-triplet superconductor Josephson junctions: 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mn>0</mml:mn><mml:mtext>−</mml:mtext><mml:mi>π</mml:mi></mml:math>
 transition, 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>ϕ</mml:mi><mml:mn>0</mml:mn></mml:msub></mml:math>
 phase, and switching effects

Cheng, Qiang; Yan, Qing; Sun, Qing-Feng

doi:10.1103/physrevb.104.134514

Cited by 9 publications

(1 citation statement)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In such materials, quantum effects emerge at macroscopic scales as a result of reduced dimensionality, interactions, band structure specifics or a combination of these factors. The recent flurry of results on topological insulators [3], Weyl semimetals [4], transition metal dichalcogenides (TMDs) [5], topological and unconventional superconductors [6][7][8][9][10][11][12][13] is a case in point. A common thread that links these groups of materials is their multi-band electronic structure associated with internal degrees of freedom (DOF).…”

Section: Introductionmentioning

confidence: 99%

Nonequilibrium Green’s function approach to multi-band Cooper-pair transport: linear magnetoresistance effect due to nonunitary superconductivity

Tkachov¹

2023

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

Many-body transport has emerged as an eﬃcient tool for understanding interaction eﬀects in quantum materials with a multi-band electronic structure. This paper proposes a formula for the two-particle transmission coeﬃcient for Cooper-pair transport between multi-band normal and superconducting materials. The approach employs a tight-binding nonequilibrium Green’s function technique, allowing a direct calculation of the two-particle current, without invoking the paradigm of Andreev reﬂection. As an application of the theory, we demonstrate a low-ﬁeld linear magnetoresistance eﬀect for superconductors with an induced nonunitary order parameter. These results uncover an unexplored route for detecting unconventional nonunitary superconductivity in quantum materials of current theoretical and experimental interest.

show abstract

Section: Introductionmentioning

confidence: 99%

Nonequilibrium Green’s function approach to multi-band Cooper-pair transport: linear magnetoresistance effect due to nonunitary superconductivity

Tkachov¹

2023

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

show abstract

Four-terminal graphene-superconductor thermal switch controlled by the superconducting phase difference

Liu,

Mao,

Sun

2024

Phys. Rev. Applied

View full text Add to dashboard Cite

Second-order topological corner states in zigzag graphene nanoflake with different types of edge magnetic configurations

2022

View full text Add to dashboard Cite

We study the energy spectrum and energy levels of the extended Kane-Mele model with magnetic atoms on their zigzag edges. It is demonstrated that the edges of ferromagnetism or antiferromagnetism are enough to break the time-reversal symmetry and host one-dimensional gapped edge states. Thus a second-order topological phase transition could happen, which leads to the emergence of topological in-gap zero-dimensional corner states. We also prove that the in-gap corner states are robust against corner defects and magnetic disorder. Our proposal based on the edge antiferromagnetism represents that the high-order topological states can be realized although the net magnetization of the material is zero. In addition, we discuss the influence of spin magnetization orientation on the degeneracy and energy of in-gap corner states.

show abstract

Spin-triplet superconductor–quantum anomalous Hall insulator–spin-triplet superconductor Josephson junctions: 0−π transition, ϕ0 phase, and switching effects

Cited by 9 publications

References 54 publications

Nonequilibrium Green’s function approach to multi-band Cooper-pair transport: linear magnetoresistance effect due to nonunitary superconductivity

Nonequilibrium Green’s function approach to multi-band Cooper-pair transport: linear magnetoresistance effect due to nonunitary superconductivity

Four-terminal graphene-superconductor thermal switch controlled by the superconducting phase difference

Second-order topological corner states in zigzag graphene nanoflake with different types of edge magnetic configurations

Contact Info

Product

Resources

About