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Related papers: Transport Properties of Near Surface InAs Two-dime…

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The two-dimensional electron gas residing in shallow InAs quantum wells coupled to epitaxial aluminum is a widely utilized platform for exploration of topological superconductivity. Strong spin-orbit coupling, large effective $g$-factor,…

Mesoscale and Nanoscale Physics · Physics 2024-12-17 Teng Zhang , Tyler Lindemann , Geoffrey C. Gardner , Sergei Gronin , Tailung Wu , Michael J. Manfra

We report on transport characteristics of field effect two-dimensional electron gases (2DEG) in 24 nm wide indium arsenide surface quantum wells. High quality single-subband magnetotransport with clear quantized integer quantum Hall…

In the last six years, Indium selenide (InSe) has appeared as a new van der Waals heterostructure platform which has been extensively studied due to its unique electronic and optical properties. Such as transition metal dichalcogenides…

InSb is one of the promising candidates to realize a topological state through proximity induced superconductivity in a material with strong spin-orbit interactions. In two-dimensional systems, thin barriers are needed to allow strong…

We simulate the electronic and transport properties of metal/two-dimensional material/metal vertical heterostructures, with a focus on graphene, hexagonal boron nitride and two phases of molybdenum diselenide. Using density functional…

Mesoscale and Nanoscale Physics · Physics 2025-02-06 Gaëlle Bigeard , Zineb Kerrami , François Triozon , Alessandro Cresti

We perform detailed magnetotransport studies on two-dimensional electron gases (2DEGs) formed in undoped Si/SiGe heterostructures in order to identify the electron mobility limiting mechanisms in this increasingly important materials…

Mesoscale and Nanoscale Physics · Physics 2015-07-24 X. Mi , T. M. Hazard , C. Payette , K. Wang , D. M. Zajac , J. V. Cady , J. R. Petta

The surface of a 3D topological insulator is conducting and the topologically nontrivial nature of the surface states is observed in experiments. It is the aim of this paper to review and analyze experimental observations with respect to…

Mesoscale and Nanoscale Physics · Physics 2013-03-11 M. Veldhorst , M. Snelder , M. Hoek , C. G. Molenaar , D. P. Leusink , A. A. Golubov , H. Hilgenkamp , A. Brinkman

We present an overview of the measured transport properties of the two dimensional electron fluids in high mobility semiconductor devices with low electron densities, and of some of the theories that have been proposed to account for them.…

Disordered Systems and Neural Networks · Physics 2010-06-01 B. Spivak , S. V. Kravchenko , S. A. Kivelson , X. P. A. Gao

We report electronic transport measurements on two-dimensional electron gases in a Ga[Al]As heterostructure with an embedded layer of InAs self-assembled quantum dots. At high InAs dot densities, pronounced Altshuler-Aronov-Spivak…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 T. Heinzel , R. D. Jaeggi , E. Ribeiro , M. v. Waldkirch , K. Ensslin , S. E. Ulloa , G. Medeiros-Ribeiro , P. M. Petroff

For applications to sensor design, the product nxmu of the electron density n and the mobility mu is a key parameter to be optimized for enhanced device sensitivity. We model the carrier mobility in a two dimensional electron gas (2DEG)…

Materials Science · Physics 2007-05-23 Y. Shao , S. A. Solin , L. R. Ram-Mohan

Oxide heterostructures are versatile platforms with which to research and create novel functional nanostructures. We successfully develop one-dimensional (1D) quantum-wire devices using quantum point contacts on MgZnO/ZnO heterostructures…

Mesoscale and Nanoscale Physics · Physics 2019-05-15 H. Hou , Y. Kozuka , Jun-Wei Liao , L. W. Smith , D. Kos , J. P. Griffiths , J. Falson , A. Tsukazaki , M. Kawasaki , C. J. B. Ford

Oxide heterostructures allow for detailed studies of 2D electronic transport phenomena. Herein, different facets of magnetotransport in selected spin-orbit-coupled systems are analyzed and characterized by their single-band and multiband…

Mesoscale and Nanoscale Physics · Physics 2021-10-14 Robert Bartel , Elias Lettl , Patrick Seiler , Thilo Kopp , German Hammerl

Near surface indium arsenide quantum wells have recently attracted a great deal of interest since they can be interfaced epitaxially with superconducting films and have proven to be a robust platform for exploring mesoscopic and topological…

We study experimentally and theoretically the effects of disorder, nonlinear screening, and magnetism in semiconductor heterostructures containing a $\delta$-layer of Mn, where the charge carriers are confined within a quantum well and…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 Vikram Tripathi , Kusum Dhochak , B. A. Aronzon , V. V. Rylkov , A. B. Davydov , Bertrand Raquet , Michel Goiran , K. I. Kugel

Low-field magnetotransport measurements of topological insulators such as Bi$_2$Se$_3$ are important for revealing the nature of topological surface states by quantum corrections to the conductivity, such as weak-antilocalization. Recently,…

The oxide heterostructure LaAlO3/SrTiO3 supports a two-dimensional electron liquid with a variety of competing phases including magnetism, superconductivity and weak antilocalization due to Rashba spin-orbit coupling. Further confinement of…

We use a van-der-Waals pickup technique to fabricate different heterostructures containing WSe$_2$(WS$_2$) and graphene. The heterostructures were structured by plasma etching, contacted by one-dimensional edge contacts and a topgate was…

Mesoscale and Nanoscale Physics · Physics 2017-09-14 Tobias Völkl , Tobias Rockinger , Martin Drienovsky , Kenji Watanabe , Takashi Taniguchi , Dieter Weiss , Jonathan Eroms

Graphene-like two-dimensional (2D) materials, not only are interesting for their exotic electronic structure and fundamental electronic transport or optical properties but also, hold promises for device miniaturization down to atomic…

High mobility, strong spin-orbit coupling, and large Land\'e g-factor make the two-dimensional electron gas (2DEG) in InAs quantum wells grown on nearly-lattice-matched GaSb substrates an attractive platform for mesoscopic quantum transport…

Mesoscale and Nanoscale Physics · Physics 2018-10-24 C. Thomas , A. T. Hatke , A. Tuaz , R. Kallaher , T. Wu , T. Wang , R. E. Diaz , G. C. Gardner , M. A. Capano , M. J. Manfra

We report magnetotransport properties of a two-dimensional electron gas confined at MgZnO/ZnO heterointerface in a high magnetic field up to 26 T. High electron mobility and low charge carrier density enabled the observation of the…

Mesoscale and Nanoscale Physics · Physics 2012-11-14 Y. Kozuka , A. Tsukazaki , D. Maryenko , J. Falson , S. Akasaka , K. Nakahara , S. Nakamura , S. Awaji , K. Ueno , M. Kawasaki
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