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Electron optics in the solid state promises new functionality in electronics through the possibility of realizing micrometer-sized interferometers, lenses, collimators and beam splitters that manipulate electrons instead of light. Until…

We study the interference of two tunable Rashba regions in a quantum wire with one propagating mode. The transmission dips (Fano-Rashba dips) of the two regions either cross or anti cross depending on the distance between the two regions.…

Mesoscale and Nanoscale Physics · Physics 2015-03-18 A. Renart , M. M. Gelabert , L. Serra

Phase coherence of charge carriers leads to electron-wave interference in ballistic mesoscopic conductors. In graphene, such Fabry-P\'erot-like interference has been observed, but a detailed analysis has been complicated by the…

Mesoscale and Nanoscale Physics · Physics 2014-04-16 Mika Oksanen , Andreas Uppstu , Antti Laitinen , Daniel J. Cox , Monica Craciun , Saverio Russo , Ari Harju , Pertti Hakonen

We demonstrated that a triple-gated GaAs quantum point contact, which has an additional surface gate between a pair of split gates to strengthen the lateral confinement, produces the well-defined quantized conductance and Fabry-P\'erot-type…

Mesoscale and Nanoscale Physics · Physics 2016-11-03 Shunta Maeda , Satoru Miyamoto , Mohammad H. Fauzi , Katsumi Nagase , Ken Sato , Yoshiro Hirayama

We investigate the electron transport through a mesoscopic ring side-coupled with a quantum dot(QD) in the presence of Rashba spin-orbit(SO) interaction. It is shown that both the Fano resonance and the spin interference effects play…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 Guo-Hui Ding , Bing Dong

We report experiments on Fabry-Perot electron interferometers in the integer quantum Hall regime. The GaAs/AlGaAs heterostructure devices consist of two constrictions defined by etch trenches in 2D electron layer, enclosing an approximately…

Mesoscale and Nanoscale Physics · Physics 2007-10-08 F. E. Camino , Wei Zhou , V. J. Goldman

We report the experimental observation of the spin-Hall effect in a two-dimensional (2D) hole system with Rashba spin-orbit coupling. The 2D hole layer is a part of a p-n junction light-emitting diode with a specially designed co-planar…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Joerg Wunderlich , Bernd Kaestner , Jairo Sinova , Tomas Jungwirth

We investigate the linear conductance of a stripe of spin-orbit interaction in a 2D electron gas; that is, a 2D region of length $\ell$ along the transport direction and infinite in the transverse one in which a spin-orbit interaction of…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 M. M. Gelabert , Ll. Serra

Symmetry offers a useful approach to unfold the intertwined degrees of freedom. Thus it paves the way to resolve coexisting quantum orders into distinct symmetry sectors. Motivated by the recent observation of superconductivity in…

Superconductivity · Physics 2026-02-19 Kunal Dutta , Rajesh O. Sharma , Shreya Das , Indra Dasgupta , Tanmoy Das , Tanusri Saha-Dasgupta

Quantum-mechanical calculations of electron magnetotransport in graphene Fabry-P\'{e}rot interferometers are presented with a focus on the role of spatial structure of edge channels. For an interferometer that is made by removing carbon…

Mesoscale and Nanoscale Physics · Physics 2023-10-24 S. Ihnatsenka

The rich and electrostatically tunable phase diagram exhibited by moir\'e materials has made them a suitable platform for hosting single material multi-purpose devices. To engineer such devices, understanding electronic transport and…

Graphene consists in a single-layer carbon crystal where 2$p_z$ electrons display a linear dispersion relation in the vicinity of the Fermi level, conveniently described by a massless Dirac equation in $2+1$ spacetime. Spin-orbit effects…

Mesoscale and Nanoscale Physics · Physics 2017-04-04 B. Berche , F. Mireles , E. Medina

The plasma oscillations of the two-dimensional electron-hole system in the presence of a Rashba spin-orbit coupling are studied. Only the intra-Landau level excitations are taken into account when the electrons and holes are situated on…

Strongly Correlated Electrons · Physics 2013-10-21 E. V. Dumanov

We study Fabry-Perot interference in hybrid devices, each consisting of a mesoscopic superconducting disk deposited on the surface of a three-dimensional topological insulator. Such structures are hypothesized to contain protected zero…

Mesoscale and Nanoscale Physics · Physics 2016-05-17 A. D. K. Finck , C. Kurter , E. D. Huemiller , Y. S. Hor , D. J. Van Harlingen

The inverse Faraday effect (IFE) refers to the generation of a DC magnetization by circularly polarized light through the transfer of optical angular momentum to electronic degrees of freedom. In conducting systems, this response can arise…

Mesoscale and Nanoscale Physics · Physics 2026-03-16 Jaglul Hasan , Chandan Setty

We report the experimental observation of Fabry-P\'erot (FP) interference in the conductance of a gate-defined cavity in a dual-gated bilayer graphene (BLG) device. The high quality of the BLG flake, combined with the device's electrical…

We investigate the transmission properties of a spin transistor coupled to two quantum point contacts acting as spin injector and detector. In the Fabry-Perot regime, transport is mediated by quasibound states formed between tunnel…

Mesoscale and Nanoscale Physics · Physics 2016-08-10 M. I. Alomar , Llorenç Serra , David Sanchez

We study how the Rashba spin-orbit interaction influences unconventional superconductivity in a two dimensional electron gas partially spin-polarized by a magnetic field. Somewhat surprisingly, we find that for all field orientations, only…

Superconductivity · Physics 2016-07-01 Ethan Lake , Caleb Webb , D. A. Pesin , O. A. Starykh

Spin-split Rashba bands have been exploited to efficiently control the spin degree of freedom of moving electrons, which possesses a great potential in frontier applications of designing spintronic devices and processing spin-based…

We study pairing formation and the appearance of induced spin-triplet p-wave superfluidity in dilute three-dimensional imbalanced Fermi gases in the presence of a uniform non-Abelian gauge field. This gauge field generates a synthetic…

Quantum Gases · Physics 2015-09-02 Heron Caldas , Mucio Continentino
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