Results 51 to 60 of about 4,873 (226)

Changed Minds and L2 Motivation: Reflections of Japanese EFL Students Living, Laboring and Learning in Vietnam

International Journal of Applied Linguistics, EarlyView.
ABSTRACT English as a lingua franca (ELF) is increasingly used for communication in many EFL contexts, including Vietnam. Although Japan and Vietnam have a long history of economic cooperation, for practical reasons, English typically functions as the medium of communication between the two groups. This study examines Japanese expats who had studied or
Mark R. Freiermuth, Satomi Kanaya
wiley   +1 more source

Effects of the cap layer on the properties of AlN barrier HEMT grown on 6-inch Si(111) substrate

Materials Research Express, 2020
A series of AlN/GaN heterostructures were grown on 150 mm Si substrates by metal organic chemical vapor deposition (MOCVD). Different cap layer structures, including gallium nitride (GaN) and silicon nitride (SiN _x ), were used to passivate the ...
Yuanyang Xia, Youhua Zhu, Chunhua Liu, Hongyuan Wei, Tingting Zhang, Yeeheng Lee, Tinggang Zhu, Meiyu wang, Li Yi, Mei Ge   +9 more
doaj   +1 more source

Tuning two-dimensional electron and hole gases at LaInO3/BaSnO3 interfaces by polar distortions, termination, and thickness

npj Computational Materials, 2021
Two-dimensional electron gases (2DEG), arising due to quantum confinement at interfaces between transparent conducting oxides, have received tremendous attention in view of electronic applications.
Wahib Aggoune, Claudia Draxl
doaj   +1 more source

2DEG on a cylindrical shell with a screw dislocation [PDF]

Physics Letters A, 2015
A two dimensional electron gas on a cylindrical surface with a screw dislocation is considered. More precisely, we investigate how both the geometry and the deformed potential due to a lattice distortion affect the Landau levels of such system. The case showing the deformed potential can be thought in the context of 3D common semiconductors where the ...
Cleverson Filgueiras, Edilberto O. Silva
openaire   +3 more sources

Entangled Discourses and Realities of English: Japanese Undergraduates’ Everyday Online and Offline Language Experiences

International Journal of Applied Linguistics, EarlyView.
ABSTRACT Focusing on the narratives of two Japanese undergraduate students, this article examines their everyday experiences of using and learning English, situated within entangled relations of power. Drawing on the Foucauldian notion of discourse, the study reveals how multiple power/knowledge systems—such as native speakerism, prescriptivism ...
Aina Tanaka, Daisuke Kimura
wiley   +1 more source

Two-dimensional electron gas (2DEG) IDT SAW devices on AlGaN/GaN heterostructure

, 2007
Surface acoustic wave (SAW) devices using two-dimensional electron gas (2DEG) as interdigital transducers (IDTs) on AlGaN/GaN heterostructure has been demonstrated using a planar isolation technique based on the fluoride-based (CF4) plasma treatment ...
Lau, Kei May, Tang, Wilson, Chen, Kevin J., Wong, King Yuen   +3 more
core   +1 more source

Enhancement of 2DEG effective mass in AlN/Al0.78Ga0.22N high electron mobility transistor structure determined by THz optical Hall effect

, 2022
We report on the free charge carrier properties of a two-dimensional electron gas (2DEG) in an AlN/AlxGa1-xN high electron mobility transistor structure with a high aluminum content (x = 0.78). The 2DEG sheet density N s = (7.3 ± 0.7) × 10 12 cm-2, sheet
Paskov, Plamen P., Kühne, Philipp, Vanya Darakchieva, Darakchieva, Vanya,, Vallery Stanishev, Plamen P. Paskov, Armakavicius, Nerijus, Schubert, Mathias,, Darakchieva, Vanya, Dat Q. Tran, Tran, Dat,, Alexis Papamichail, Mathias Schubert, Schubert, Mathias, Tran, Dat Q., Paskov, Plamen, Armakavicius, Nerijus,, Nerijus Armakavicius, Kuhne, Philipp,, Philipp Kühne, Stanishev, Vallery,, Papamichail, Alexis,, Stanishev, Vallery, Paskov, Plamen,, Papamichail, Alexis, Tran, Dat   +25 more
core   +1 more source

Spatial inhomogeneity and temporal dynamics of a 2D electron gas in interaction with a 2D adatom gas

Scientific Reports, 2017
Fundamental interest for 2D electron gas (2DEG) systems has been recently renewed with the advent of 2D materials and their potential high-impact applications in optoelectronics.
F. Cheynis, S. Curiotto, F. Leroy, P. Müller   +3 more
doaj   +1 more source

Selective chemical etching for termination layer control of BaSnO3 and 2DEG formation at the LaInO3/BaSnO3 interface

APL Materials, 2023
An ex situ chemical etching method was developed to achieve a SnO2-terminated surface in BaSnO3 films. An SnO2-terminated surface is crucial for the formation of a (LaO)+/(SnO2)0 interface structure to form the two-dimensional electron gas (2DEG) state ...
Seonghyeon Kim, Bongju Kim, Kookrin Char
doaj   +1 more source

2DEGs at Perovskite Interfaces between KTaO3 or KNbO3 and Stannates

PLoS ONE, 2014
We report density functional studies of electron rich interfaces between KTaO3 or KNbO3 and CaSnO3 or ZnSnO3 and in particular the nature of the interfacial electron gasses that can be formed. We find that depending on the details these may occur on either the transition metal or stannate sides of the interface and in the later case can be shifted away
Xiaofeng Fan, Weitao Zheng, Xin Chen, David J Singh   +3 more
openaire   +5 more sources