Rectification of AC Electric Current at the Edge of 2D Electron Gas

2020 ◽  
pp. 2000291
Author(s):  
Mikhail V. Durnev ◽  
Sergey A. Tarasenko
Keyword(s):  
Electric Current ◽  
Electron Gas ◽  
2D Electron Gas

scholarly journals An all-epitaxial nitride heterostructure with concurrent quantum Hall effect and superconductivity

2021 ◽  
Vol 7 (8) ◽  
pp. eabf1388
Author(s):  
Phillip Dang ◽  
Guru Khalsa ◽  
Celesta S. Chang ◽  
D. Scott Katzer ◽  
Neeraj Nepal ◽  
...  
Keyword(s):  
Hall Effect ◽  
Quantum Hall Effect ◽  
Electron Gas ◽  
Quantum Hall ◽  
High Electron Mobility Transistor ◽  
High Electron ◽  
2D Electron Gas ◽  
Integer Quantum Hall Effect ◽  
Topological Quantum ◽  
Integer Quantum

Creating seamless heterostructures that exhibit the quantum Hall effect and superconductivity is highly desirable for future electronics based on topological quantum computing. However, the two topologically robust electronic phases are typically incompatible owing to conflicting magnetic field requirements. Combined advances in the epitaxial growth of a nitride superconductor with a high critical temperature and a subsequent nitride semiconductor heterostructure of metal polarity enable the observation of clean integer quantum Hall effect in the polarization-induced two-dimensional (2D) electron gas of the high-electron mobility transistor. Through individual magnetotransport measurements of the spatially separated GaN 2D electron gas and superconducting NbN layers, we find a small window of magnetic fields and temperatures in which the epitaxial layers retain their respective quantum Hall and superconducting properties. Its analysis indicates that in epitaxial nitride superconductor/semiconductor heterostructures, this window can be significantly expanded, creating an industrially viable platform for robust quantum devices that exploit topologically protected transport.

WSe2/2D electron gas heterojunction on KTaO3 for room-temperature giant photoconductivity

2020 ◽  
Author(s):  
Ze Zhou ◽  
Gensheng Huang ◽  
Jiaxin Shen ◽  
Shuainan Gong ◽  
Pengfei Zhou ◽  
...  
Keyword(s):  
Room Temperature ◽  
Electron Gas ◽  
2D Electron Gas

scholarly journals TRANSPORT PROPERTIES OF 2D ELECTRON GAS IN AN n-InGaAs/GaAs DQW IN A VICINITY OF LOW MAGNETIC-FIELD-INDUCED HALL INSULATOR–QUANTUM HALL LIQUID TRANSITION

2007 ◽  
Vol 06 (03n04) ◽  
pp. 173-177
Author(s):  
YU. G. ARAPOV ◽  
S. V. GUDINA ◽  
G. I. HARUS ◽  
V. N. NEVEROV ◽  
N. G. SHELUSHININA ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electron Gas ◽  
Quantum Hall ◽  
Zero Magnetic Field ◽  
Double Quantum ◽  
Ballistic Regime ◽  
2D Electron Gas ◽  
Double Quantum Well ◽  
Liquid Transition ◽  
Low Magnetic Field

The resistivity (ρ) of low mobility dilute 2D electron gas in an n- InGaAs / GaAs double quantum well (DQW) exhibits the monotonic "insulating-like" temperature dependence (dρ/dT < 0) at T = 1.8–70 K in zero magnetic field. This temperature interval corresponds to a ballistic regime (kBTτ/ħ > 0.1–3.5) for our samples, and the electron density is on an "insulating" side of the so-called B = 0 2D metal–insulator transition. We show that the observed features of localization and Landau quantization in a vicinity of the low magnetic-field-induced insulator–quantum Hall liquid transition is due to the σxy(T) anomalous T-dependence.

scholarly journals Universal Structural Influence on the 2D Electron Gas at SrTiO 3 Surfaces

2021 ◽  
pp. 2100602
Author(s):  
Eduardo B. Guedes ◽  
Stefan Muff ◽  
Walber H. Brito ◽  
Marco Caputo ◽  
Hang Li ◽  
...  
Keyword(s):  
Electron Gas ◽  
2D Electron Gas ◽  
Structural Influence

Interwell radiative recombination of a 2D electron gas in electrically biased double quantum wells

1998 ◽  
Vol 41 (2) ◽  
pp. 109-112 ◽  
Author(s):  
Vladislav B Timofeev ◽  
A V Larionov ◽  
J Zeman ◽  
G Martinez ◽  
J Hvam ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Radiative Recombination ◽  
Electron Gas ◽  
Double Quantum ◽  
2D Electron Gas

Momentum relaxation of 2D electron gas due to near-surface acoustic phonon scattering

1999 ◽  
Vol 270 (3-4) ◽  
pp. 280-288 ◽  
Author(s):  
V.I. Pipa ◽  
N.Z. Vagidov ◽  
V.V. Mitin ◽  
M. Stroscio
Keyword(s):  
Acoustic Phonon ◽  
Phonon Scattering ◽  
Electron Gas ◽  
Near Surface ◽  
2D Electron Gas ◽  
Momentum Relaxation

Spontaneous magnetization of the 2D electron gas

2001 ◽  
Vol 142 (1-3) ◽  
pp. 406-409
Author(s):  
Gaetano Senatore ◽  
S. Moroni ◽  
D. Varsano
Keyword(s):  
Spontaneous Magnetization ◽  
Electron Gas ◽  
2D Electron Gas

Mixed Dimensional Te Nanowire–Te Nanosheet Heterojunctions with 2D Electron Gas on SrTiO3 for Diode Applications

2021 ◽  
Author(s):  
Shuainan Gong ◽  
Zhichao Wang ◽  
Li Ye ◽  
Run Zhao ◽  
Guozhen Liu ◽  
...  
Keyword(s):  
Electron Gas ◽  
2D Electron Gas
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