Zobrazeno 1 - 10
of 205
pro vyhledávání: '"Shaffer, Daniel A."'
Publikováno v:
Phys. Rev. B 110, 184509 (2024)
We identify a new mechanism for the intrinsic superconducting diode effect (SDE) in multiphase superconductors. Using a Ginzburg-Landau and a microscopic two-band model, we find phase transitions into a mixed phase with finite-momentum Cooper pairs a
Externí odkaz:
http://arxiv.org/abs/2406.14612
Publikováno v:
Phys. Rev. B 110, 024508 (2024)
In this work, we explore the generalities of the supercurrent diode effect. As an illustrative example, we examine a model of a two-dimensional superconductor with Rashba-type spin-orbit coupling under an in-plane magnetic field and in the clean limi
Externí odkaz:
http://arxiv.org/abs/2404.17072
Publikováno v:
Phys. Rev. B 109, 115111 (2024)
Motivated by recent observation of the quantum spin Hall effect in monolayer germanene and twisted bilayer transition-metal-dichalcogenides (TMDs), we study the topological phases of moir\'e twisted bilayers with time-reversal symmetry and spin $s_z$
Externí odkaz:
http://arxiv.org/abs/2309.07222
Cavity materials are a frontier to investigate the role of light-matter interactions on the properties of electronic phases of matter. In this work, we raise a fundamental question: can non-local interactions mediated by cavity photons destabilize a
Externí odkaz:
http://arxiv.org/abs/2308.08588
Publikováno v:
Physical Review B 108, 155430 (2023)
Three-dimensional topological insulators support gapless Dirac fermion surface states whose rich topological properties result from the interplay of symmetries and dimensionality. Their topological properties have been extensively studied in systems
Externí odkaz:
http://arxiv.org/abs/2306.11793
While advances in electronic band theory have brought to light new topological systems, understanding the interplay of band topology and electronic interactions remains a frontier question. In this work, we predict new interacting electronic orders e
Externí odkaz:
http://arxiv.org/abs/2303.12833
Autor:
Shaffer, Daniel, Santos, Luiz H.
Pair-density waves (PDW) are superconducting states that spontaneously break translation symmetry in systems with time-reversal symmetry (TRS). Evidence for PDW has been seen in several recent experiments, as well as in the pseudogap regime in cuprat
Externí odkaz:
http://arxiv.org/abs/2210.16324
Publikováno v:
Phys. Rev. B 107, 224516 (2023)
The possibility of realizing pair density wave (PDW) phases, in which Cooper pairs have a finite momentum, presents an interesting challenge that has been studied in a wide variety of systems. In conventional superconductors, this is only possible wh
Externí odkaz:
http://arxiv.org/abs/2209.14469
Publikováno v:
Nat Commun 13, 7785 (2022)
Fractal Hofstadter bands have become widely accessible with the advent of moir\'e superlattices, opening the door to studies of the effect of interactions in these systems. In this work we employ a renormalization group (RG) analysis to demonstrate t
Externí odkaz:
http://arxiv.org/abs/2204.13116
Autor:
Shaffer, Daniel, Chichinadze, Dmitry
Publikováno v:
Phys. Rev. B 106, 014502 (2022)
A lot of attention has been drawn to superconductivity in UTe$_2$, with suggestions of time-reversal symmetry breaking triplet chiral superconducting order parameter. The chirality of the order parameter has been attributed to an accidental near dege
Externí odkaz:
http://arxiv.org/abs/2202.11732