Results 81 to 90 of about 93,610 (302)

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

Parity independence of the zero-bias conductance peak in a nanowire based topological superconductor-quantum dot hybrid device

, 2014
We explore the signatures of Majorana fermions in a nanowire based topological superconductor-quantum dot-topological superconductor hybrid device by charge transport measurements.
Caroff, P., Deng, M. T., Huang, G. Y., Larsson, M., Xu, H. Q., Yu, C. L.   +5 more
core   +2 more sources

All-electrical detection of the relative strength of Rashba and Dresselhaus spin-orbit interaction in quantum wires [PDF]

, 2008
We propose a method to determine the relative strength of Rashba and Dresselhaus spin-orbit interaction from transport measurements without the need of fitting parameters.
E. Rashba, E. Rashba, Junsaku Nitta, Klaus Richter, M. I. D’yakonov, M. I. D’yakonov, Makoto Kohda, Matthias Scheid, Yoji Kunihashi   +8 more
core   +2 more sources

Quantum Criticality in Resonant Andreev Conduction

Physical Review Letters, 2017
Motivated by recent experiments with proximitized nanowires, we study a mesoscopic s-wave superconductor connected via point contacts to normal-state leads. We demonstrate that at energies below the charging energy the system is described by the two-channel Kondo model, which can be brought to the quantum critical regime by varying the gate potential ...
Pustilnik, M, van Heck, B, Lutchyn, R M, Glazman, L I   +3 more
openaire   +5 more sources

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Semiclassical theory of quantum stochastic resistors

Physical Review Research, 2023
We devise a semiclassical model to describe the transport properties of low-dimensional fermionic lattices under the influence of external quantum stochastic noise.
Tony Jin, João Ferreira, Michel Bauer, Michele Filippone, Thierry Giamarchi   +4 more
doaj   +1 more source

Flux-free conductance modulation in a helical Aharonov-Bohm interferometer

, 2010
A novel conductance oscillation in a twisted quantum ring composed of a helical atomic configuration is theoretically predicted. Internal torsion of the ring is found to cause a quantum phase shift in the wavefunction that describes the electron's motion
Balakrishnan R, Barwick B, Cotaescu I I, Ford L H, Heinrichs J, Hiroyuki Shima, Hisao Taira, Hod O, Kotimäki V Räsänen E, Schwingenschlögl U, Shima H, Taira H, Vassilev V M, Voit J, Ying Y   +14 more
core   +1 more source

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

Advanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu, Christof Wöll, Stefan Bräse   +2 more
wiley   +1 more source

Half-quantum mirror Hall effect

Nature Communications
We predict a half-quantized mirror Hall effect induced by mirror symmetry in strong topological insulator films. These films are known to host a pair of gapless Dirac cones in the first Brillouin zone associated with surface electrons.
Bo Fu, Kai-Zhi Bai, Shun-Qing Shen
doaj   +1 more source

Coherent electronic transport in a multimode quantum channel with Gaussian-type scatterers

, 2004
Coherent electron transport through a quantum channel in the presence of a general extended scattering potential is investigated using a T-matrix Lippmann-Schwinger approach.
Andrei Manolescu, C. S. Chu, Chi-Shung Tang, Gudny Gudmundsdottir, H. Bruus, Ingibjorg Magnusdottir, J. A. Nixon, Jens Hjorleifur Bardarson, P. F. Bagwell, R. H. Landau, R. Landauer, S. A. Gurvitz, Vidar Gudmundsson, Y. B. Levinson, Y. Takagaki   +14 more
core   +1 more source