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96 papers · 1 filter
Andreev spin qubits based on the helical edge states of magnetically doped two-dimensional topological insulators
Edoardo Latini, Fausto Rossi, Fabrizio Dolcini
We show that Andreev spin qubits can be realized in a Josephson junction based on the helical edge states of a two-dimensional topological insulator (quantum spin Hall system) prox…
Enhanced Thermoelectricity in Nanowires with inhomogeneous Helical states
Zahra Aslani, Fabio Taddei, Fabrizio Dolcini +1
Semiconductor nanowires (NWs) with strong Rashba spin-orbit coupling (RSOC), when exposed to a suitably applied Zeeman field, exhibit one-dimensional helical channels with a spin o…
Minimizing energy dissipation during programming of resistive switching memory devices using their dynamical attractor states
Valeriy A. Slipko, Alon Ascoli, Fernando Corinto +1
Under certain conditions, applying a sequence of voltage pulses of alternating polarities across a resistive switching memory device induces a finite number of fixed-point attracto…
Electron-beam-induced Contactless Manipulation of Interlayer Twist in van der Waals Heterostructures
Nicola Curreli, Tero S. Kulmala, Riya Sebait +6
The ability to dynamically control the relative orientation of layers in two dimensional (2D) van der Waals (vdW) heterostructures represents a critical step toward the realization…
Optical absorption in hexagonal-diamond Si and Ge nanowires: insights from STEM-EELS experiments and ab initio theory
Luiz H. G. Tizei, Michele Re Fiorentin, Thomas Dursap +6
Hexagonal-diamond (2H) group IV nanowires are key for advancing group IV-based lasers, quantum electronics, and photonics. Understanding their dielectric response is crucial for pe…
Angular-momentum-selective nanofocusing with Weyl semimetals
Marco Peluso, Alessandro De Martino, Reinhold Egger +1
We investigate the theory of surface plasmon polaritons on a magnetic Weyl semimetal conical tip. We show that the axion term in the effective electrodynamics modifies the surface…