Results 31 to 40 of about 17,889 (195)

Anomalous enhancement of thermoelectric power factor in multiple two-dimensional electron gas system

Nature Communications
Toward drastic enhancement of thermoelectric power factor, quantum confinement effect proposed by Hicks and Dresselhaus has intrigued a lot of researchers.
Yuto Uematsu, Takafumi Ishibe, Takaaki Mano, Akihiro Ohtake, Hideki T. Miyazaki, Takeshi Kasaya, Yoshiaki Nakamura   +6 more
doaj   +1 more source

HAADF STEM and Ab Initio Calculations Investigation of Anatase TiO₂/LaAlO₃ Heterointerface

Applied Sciences, 2022
The understanding of the origin of a two-dimensional electron gas (2DEG) at the surface of anatase TiO2 remains a challenging issue. In particular, in TiO2 ultra-thin films, it is extremely difficult to distinguish intrinsic effects, due to the physics ...
Mahabul Islam, Piu Rajak, Daniel Knez, Sandeep Kumar Chaluvadi, Pasquale Orgiani, Giorgio Rossi, Goran Dražić, Regina Ciancio   +7 more
doaj   +1 more source

Plasmon spectrum of two-dimensional electron systems with Rashba spin-orbit interaction

, 2005
The dielectric function and plasmon modes of a two-dimensional electron gas (2DEG) are studied in single- and double-quantum-well structures with Rashba spin-orbit interaction (RSOI) in the framework of the random-phase approximation.
X. F. Wang, Y. A. Bychkov
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Active SAW devices on 2DEG heterostructures

Electronics Letters, 2004
Active surface acoustic wave filters with voltage-controlled insertion losses have been achieved using AlGaN/GaN 2DEG heterostuctures as piezoelectric substrates. Transfer control is performed by moderate DC voltages between the fingers in either or both input and output interdigital transducers.
F. Calle, J. Grajal, J. Pedrós
openaire   +1 more source

Tailoring a two-dimensional electron gas at the LaAlO3/SrTiO3 (001) interface by epitaxial strain

, 2010
Recently a metallic state was discovered at the interface between insulating oxides, most notably LaAlO3 and SrTiO3. Properties of this two-dimensional electron gas (2DEG) have attracted significant interest due to its potential applications in ...
C. B. Eom, C. M. Folkman, C. W. Bark, Cen, Choi, D. A. Felker, D. D. Fong, E. Y. Tsymbal, Gozar, H. W. Jang, H. Zhou, Haeni, J. W. Park, Lee, M. S. Rzchowski, Ohtomo, Ohtomo, S. H. Baek, Warusawithana, X. Q. Pan, Y. Wang, Y. Zhang   +21 more
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Magnetization of a two-dimensional electron gas with a second filled subband [PDF]

, 2003
We have measured the magnetization of a dual-subband two-dimensional electron gas, confined in a GaAs/AlGaAs heterojunction. In contrast to two-dimensional electron gases with a single subband, we observe non-1/B-periodic, triangularly shaped ...
A. D. Wieck, A.S. Alexandrov, A.S. Alexandrov, D. Grundler, D. Reuter, D. Schuh, E.P. De Poortere, F. Stern, I. Meinel, J. C. Maan, J. Jaroszyński, J. Sanchez-Dehesa, J.P. Eisenstein, K. Muraki, M. Bichler, M. R. Schaapman, M.P. Schwarz, M.R. Schaapman, P. C. M. Christianen, R.A. Shepherd, R.J. Nicholas, S. Trott, S.A.J. Wiegers, T. Ando, U. Zeitler, V. Piazza, W. Pan   +26 more
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Effects of Strain Channel on Electron Irradiation Tolerance of InP-based HEMT Structures

Yuanzineng kexue jishu, 2023
The introduction of strain InxGa1-xAs channel with high In content increases the confinement of the two-dimensional electron gas (2DEG) and further improves the high-frequency performance of InGaAs/InAlAs/InP HEMTs.
FANG Renfeng1;CAO Wenyu1;WEI Yanfeng1;WANG Yin1;CHEN Chuanliang1;YAN Jiasheng2;XING Yan2;LIANG Guijie1,3;ZHOU Shuxing1,3,*
doaj   +1 more source

Modulation-doped beta-(Al0.2Ga0.8)2O3/Ga2O3 Field-Effect Transistor

, 2017
Modulation-doped heterostructures are a key enabler for realizing high mobility and better scaling properties for high performance transistors. We report the realization of modulation-doped two-dimensional electron gas (2DEG) at beta(Al0.2Ga0.8)2O3 ...
Arehart, Aaron R., Brenner, Mark, Hwang, Jinwoo, Johnson, Jared, Joishi, Chandan, Krishnamoorthy, Sriram, Lodha, Saurabh, McGlone, Joe, Rajan, Siddharth, Xia, Zhanbo, Zhang, Yuewei   +10 more
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Nonlinear Optical studies of the Transient Coherence in the Quantum Hall System

, 2006
We review recent investigations of the femtosecond non-linear optical response of the two-dimensional electron gas (2DEG) in a strong magnetic field. We probe the Quantum Hall (QH) regime for filling factors $\nu \sim 1$.
Axt, Axt, Axt, Axt, Axt, Bartels, Boller, Chakraborty, Chemla, Chemla, D.S. Chemla, Donovan, E.G. Kavousanaki, Eisenstein, Ferrio, Fertig, Fromer, Fromer, Fromer, Fromer, Haug, Hirjibehedin, I.E. Perakis, Igarashi, Igarashi, J. Tignon, K.M. Dani, Kallin, Kapetanakis, Karathanos, Louie, MacDonald, Mueller, Oji, Perakis, Perakis, Perakis, Perakis, Perakis, Perakis, Perakis, Pinczuk, Pinczuk, Rossi, Ruckenstein, Ruckenstein, Schueller, Schäfer, Shah, Shahbazyan, Sham, Stormer, Wegener, Yoshioka, Zibrov, Östreich   +55 more
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Suppressed spin dephasing for 2D and bulk electrons in GaAs wires due to engineered cancellation of spin-orbit interaction terms [PDF]

, 2010
We report a study of suppressed spin dephasing for quasi-one-dimensional electron ensembles in wires etched into a GaAs/AlGaAs heterojunction system. Time-resolved Kerr-rotation measurements show a suppression that is most pronounced for wires along the [
Denega, S. Z., Last, T., Liu, J., Reuter, D., Rizo, P. J., Slachter, A., van der Wal, C. H., van Loosdrecht, P. H. M., van Wees, B. J., Wieck, A. D.   +9 more
core   +3 more sources