Non-trivial quantum geometry and the strength of electron–phonon coupling
Electron–phonon coupling is crucial for the existence of various phases of matter, in
particular superconductivity and density waves. Here, we devise a theory that incorporates …
particular superconductivity and density waves. Here, we devise a theory that incorporates …
Electron–-phonon interaction in twisted bilayer graphene
We develop an analytic theory to describe the interaction between electrons and K phonons
and study its influence on superconductivity in the bare bands of twisted bilayer graphene …
and study its influence on superconductivity in the bare bands of twisted bilayer graphene …
Material properties particularly suited to be measured with helium scattering: selected examples from 2D materials, van der Waals heterostructures, glassy materials …
Helium Atom Scattering (HAS) and Helium Spin-Echo scattering (HeSE), together helium
scattering, are well established, but non-commercial surface science techniques. They are …
scattering, are well established, but non-commercial surface science techniques. They are …
Superconductivity in monolayer and few-layer graphene. II. Topological edge states and Chern numbers
We study the emergence of electronic edge states in superconducting monolayer, bilayer,
and trilayer graphene for both spin-singlet and spin-triplet superconducting order …
and trilayer graphene for both spin-singlet and spin-triplet superconducting order …
Superconductivity and magnetism in the surface states of ABC-stacked multilayer graphene
ABC-stacked multilayer graphene (ABC-MLG) exhibits topological surface flat bands with a
divergent density of states, leading to many-body instabilities at charge neutrality. Here, we …
divergent density of states, leading to many-body instabilities at charge neutrality. Here, we …
Constrained weak-coupling superconductivity in multiband superconductors
We consider superconductivity in a system with N Fermi surfaces, including intraband and
interband effective electron-electron interactions. The effective interaction is described by an …
interband effective electron-electron interactions. The effective interaction is described by an …
Superconductivity in monolayer and few-layer graphene. I. Review of possible pairing symmetries and basic electronic properties
We review all symmetry-allowed spin-singlet and spin-triplet superconducting order
parameters in graphene (s-wave, d-wave, p-wave, and f-wave) generated by generic on …
parameters in graphene (s-wave, d-wave, p-wave, and f-wave) generated by generic on …
Phonon-Mediated Quasiparticle Lifetime Renormalizations in Few-Layer Hexagonal Boron Nitride
Understanding the collective behavior of the quasiparticles in solid-state systems underpins
the field of nonvolatile electronics, including the opportunity to control many-body effects for …
the field of nonvolatile electronics, including the opportunity to control many-body effects for …
Superconductivity in monolayer and few-layer graphene. III. Impurity-induced subgap states and quasiparticle interference patterns
We consider the most energetically favorable symmetry-allowed spin-singlet and spin-triplet
superconducting pairing symmetries in monolayer and few-layer graphene and for each …
superconducting pairing symmetries in monolayer and few-layer graphene and for each …
Topological superconductivity induced by a Kitaev spin liquid
SD Lundemo, A Sudbø - Physical Review B, 2024 - APS
We study the effective low-energy fermionic theory of the Kondo-Kitaev model to leading
order in the Kondo coupling. Our main goal is to understand the nature of the …
order in the Kondo coupling. Our main goal is to understand the nature of the …