Zobrazeno 1 - 10
of 356
pro vyhledávání: '"Glazman, Leonid"'
Motivated by the recent development of the quantum twisting microscope, we formulate a theory of elastic momentum-resolved tunneling across a planar tunnel junction between a monolayer graphene layer situated on a tip and a twisting graphene-based sa
Externí odkaz:
http://arxiv.org/abs/2410.08383
We show that an s-wave superconductor may become topological in the presence of a magnetic field which leads to formation of an Abrikosov vortex lattice. Below the upper critical field, a new superconducting state with a nontrivial topological number
Externí odkaz:
http://arxiv.org/abs/2409.15266
We develop a theory of the nonlocal conductance $G_{RL}(V)$ for a disordered Majorana wire tuned near the topological transition critical point. We show that the differential conductance is an odd function of bias, $G_{RL}(V) = -G_{RL}(-V)$. We facto
Externí odkaz:
http://arxiv.org/abs/2409.09325
Autor:
Birkbeck, John, Xiao, Jiewen, Inbar, Alon, Taniguchi, Takashi, Watanabe, Kenji, Berg, Erez, Glazman, Leonid, Guinea, Francisco, von Oppen, Felix, Ilani, Shahal
The coupling between electrons and phonons is one of the fundamental interactions in solids, underpinning a wide range of phenomena such as resistivity, heat conductivity, and superconductivity. However, direct measurements of this coupling for indiv
Externí odkaz:
http://arxiv.org/abs/2407.13404
Autor:
Xiao, Jiewen, Berg, Erez, Glazman, Leonid I., Guinea, Francisco, Ilani, Shahal, von Oppen, Felix
We develop a theory of probing phonon modes of van-der-Waals materials using the quantum twisting microscope. While elastic tunneling dominates the tunneling current at small twist angles, the momentum mismatch between the K-points of tip and sample
Externí odkaz:
http://arxiv.org/abs/2407.12092
Autor:
Reinhardt, Simon, Penner, Alexander-Georg, Berger, Johanna, Baumgartner, Christian, Gronin, Sergei, Gardner, Geoffrey C., Lindemann, Tyler, Manfra, Michael J., Glazman, Leonid I., von Oppen, Felix, Paradiso, Nicola, Strunk, Christoph
We demonstrate transport in 2D arrays of multiterminal $\varphi_0$-junctions. When applying an in-plane magnetic field we observe nonreciprocal vortex depinning currents, induced by a ratchet-like pinning potential. The ratchet effect is explained as
Externí odkaz:
http://arxiv.org/abs/2406.13819
We analyze the transition into the most favorable ordered state for a system of 2D fermions with spin and valley degrees of freedom. We show that for a range of rotationally invariant dispersions, the ordering transition is highly unconventional: the
Externí odkaz:
http://arxiv.org/abs/2406.04416
We show that two-dimensional fermions with dispersion $k^2$ or $k^4$ undergo a first-order Stoner transition to a fully spin-polarized state despite that the spin susceptibility diverges at the critical point. We extend our analysis to systems with d
Externí odkaz:
http://arxiv.org/abs/2406.04415
Reconstruction of surface electron spectrum and cyclotron motion in the CDW phase of Weyl semimetals
Charge density wave (CDW) instability drastically affects the surface electron spectrum of a Weyl semimetal. We show that in the CDW phase, the Fermi arcs reconnect into either closed Fermi loops or Frieze patterns traversing the reconstructed surfac
Externí odkaz:
http://arxiv.org/abs/2405.04721
At zero temperature, a Josephson junction coupled to an ohmic environment displays a quantum phase transition between superconducting and insulating phases, depending whether the resistance of the environment is below or above the resistance quantum.
Externí odkaz:
http://arxiv.org/abs/2403.13552