Zobrazeno 1 - 10
of 168
pro vyhledávání: '"Adagideli, I."'
Publikováno v:
Phys. Rev. B 107, 205420 (2023)
A supercurrent on the proximitized surface of a topological insulator can cause a delocalization transition of a Majorana fermion bound to a vortex core as a zero-mode. Here we study the dynamics of the deconfinement, as a manifestation of the Magnus
Externí odkaz:
http://arxiv.org/abs/2303.05959
Publikováno v:
SciPost Phys. 14, 060 (2023)
Spin-orbit interaction (SOI) has been a key tool to steer and manipulate spin-dependent transport properties in two-dimensional electron gases. Here we demonstrate how spin currents can be created and efficiently read out in nano- or mesoscale conduc
Externí odkaz:
http://arxiv.org/abs/2109.10991
Publikováno v:
Phys. Rev. Lett. 126, 226801 (2021)
A spatially oscillating pair potential $\Delta(r)=\Delta_0 e^{2i K\cdot r}$ with momentum $K>\Delta_0/\hbar v$ drives a deconfinement transition of the Majorana bound states in the vortex cores of a Fu-Kane heterostructure (a 3D topological insulator
Externí odkaz:
http://arxiv.org/abs/2101.08252
Autor:
Hassler, F., Grabsch, A., Pacholski, M. J., Oriekhov, D. O., Ovdat, O., Adagideli, I., Beenakker, C. W. J.
Publikováno v:
Phys. Rev. B 102, 045431 (2020)
A Josephson junction in a topological superconductor can inject a charge e/2 into a normal-metal contact, carried by chiral Majorana edge modes. Here we address the question whether this half-integer charge is a sharp observable, without quantum fluc
Externí odkaz:
http://arxiv.org/abs/2005.08655
Publikováno v:
Annals of Physics 417, 168103 (2020)
It was shown recently that Weyl fermions in a superconducting vortex lattice can condense into Landau levels. Here we study the chiral magnetic effect in the lowest Landau level: The appearance of an equilibrium current $I$ along the lines of magneti
Externí odkaz:
http://arxiv.org/abs/1911.00312
Publikováno v:
SciPost Phys. 8, 013 (2020)
A $2\pi$ phase shift across a Josephson junction in a topological superconductor injects vortices into the chiral edge modes at opposite ends of the junction. When two vortices are fused they transfer charge into a metal contact. We calculate the tim
Externí odkaz:
http://arxiv.org/abs/1907.02422
Publikováno v:
Phys. Rev. B 100, 035417 (2019)
Building on the discovery that a Weyl superconductor in a magnetic field supports chiral Landau level motion along the vortex lines, we investigate its transport properties out of equilibrium. We show that the vortex lattice carries an electric curre
Externí odkaz:
http://arxiv.org/abs/1904.05758
Autor:
Beenakker, C. W. J., Baireuther, P., Herasymenko, Y., Adagideli, I., Wang, Lin, Akhmerov, A. R.
Publikováno v:
Phys. Rev. Lett. 122, 146803 (2019)
Majorana zero-modes in a superconductor are midgap states localized in the core of a vortex or bound to the end of a nanowire. They are anyons with non-Abelian braiding statistics, but when they are immobile one cannot demonstrate this by exchanging
Externí odkaz:
http://arxiv.org/abs/1809.09050
Autor:
Beenakker, C. W. J., Gnezdilov, N. V., Dresselhaus, E., Ostroukh, V. P., Herasymenko, Y., Adagideli, I., Tworzydlo, J.
Publikováno v:
Phys. Rev. B 97, 241403(R) (2018)
Dirac electrons in graphene have a valley degree of freedom that is being explored as a carrier of information. In that context of "valleytronics" one seeks to coherently manipulate the valley index. Here we show that reflection from a superlattice p
Externí odkaz:
http://arxiv.org/abs/1805.02487
Publikováno v:
Phys. Rev. Lett. 121, 037701 (2018)
The question whether the mixed phase of a gapless superconductor can support a Landau level is a celebrated problem in the context of \textit{d}-wave superconductivity, with a negative answer: The scattering of the subgap excitations (massless Dirac
Externí odkaz:
http://arxiv.org/abs/1710.00719