Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Zülicke, Ulrich"'
Publikováno v:
SciPost Phys. 14, 115 (2023)
A topological superfluid phase characterized by an emergent chiral-p-wave pair potential is expected to form in a two-dimensional Fermi superfluid subject to s-wave pairing, spin-orbit coupling and a large-enough Zeeman splitting. Andreev bound state
Externí odkaz:
http://arxiv.org/abs/2209.08766
Autor:
Yīng, Yìlè, Zülicke, Ulrich
Publikováno v:
Advances in Physics: X 7, 2032343 (2022)
Since the initial isolation of few-layer graphene, a plethora of two-dimensional atomic crystals has become available, covering almost all known materials types including metals, semiconductors, superconductors, ferro- and antiferromagnets. These adv
Externí odkaz:
http://arxiv.org/abs/2201.04801
Publikováno v:
SciPost Phys. 12, 167 (2022)
We theoretically study spin-$1/2$ fermions confined to two spatial dimensions and experiencing isotropic short-range attraction in the presence of both spin-orbit coupling and Zeeman spin splitting - a prototypical system for developing topological s
Externí odkaz:
http://arxiv.org/abs/2112.09336
Publikováno v:
Phys. Rev. B 104, 235430 (2021)
We examine models for the magneto-conductivity correction in 2DEGs with both Rashba and Dresselhaus spin-orbit coupling (SOC) for their applicability to experimental data fitting. In particular, we compare the Landau-quantized Cooperon approach, whic
Externí odkaz:
http://arxiv.org/abs/2112.03966
Publikováno v:
Phys. Rev. B 101, 245417 (2020)
In a semiconductor, collective excitations of spin textures usually decay rather fast due to D'yakonov-Perel' spin relaxation. The latter arises from spin-orbit coupling, which induces wave-vector-dependent spin rotations that, in conjunction with ra
Externí odkaz:
http://arxiv.org/abs/2003.06544
We present a theoretical study of a nanowire made of a three-dimensional topological insulator. The bulk topological insulator is described by a continuum-model Hamiltonian, and the cylindrical-nanowire geometry is modelled by a hard-wall boundary co
Externí odkaz:
http://arxiv.org/abs/2003.01321
Publikováno v:
Phys. Rev. Research 2, 022068 (2020)
A superconductor subject to electromagnetic irradiation in the terahertz range can show amplitude oscillations of its order parameter. However, coupling this so-called Higgs mode to the charge current is notoriously difficult. We propose to achieve s
Externí odkaz:
http://arxiv.org/abs/2003.00204
Publikováno v:
Phys. Rev. B 100, 075421 (2019)
A graphene bilayer shows an unusual magnetoelectric response whose magnitude is controlled by the valley-isospin density, making it possible to link magnetoelectric behavior to valleytronics. Complementary to previous studies, we consider the effect
Externí odkaz:
http://arxiv.org/abs/1905.07093
Publikováno v:
Phys. Rev. A 93, 023625 (2016)
We consider the motion of a point-like impurity through a three-dimensional two-component Bose-Einstein condensate subject to Weyl spin-orbit coupling. Using linear-response theory, we calculate the drag force felt by the impurity and the associated
Externí odkaz:
http://arxiv.org/abs/1511.00886
Publikováno v:
Phys. Rev. B 84, 104526 (2011)
We have investigated Andreev-reflection processes occurring at a clean interface between a $p$-type semiconductor and a conventional superconductor. Our calculations are performed within a generalized Bogoliubov-de Gennes formalism where the details
Externí odkaz:
http://arxiv.org/abs/1107.2039