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相关论文: Design of Ga2O3 Modulation Doped Field Effect Tran…

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We fabricate and characterize dual-gated graphene field-effect transistors (FETs) using Al2O3 as top-gate dielectric. We use a thin Al film as a nucleation layer to enable the atomic layer deposition of Al2O3. Our devices show mobility…

介观与纳米尺度物理 · 物理学 2009-11-13 Seyoung Kim , Junghyo Nah , Insun Jo , Davood Shahrjerdi , Luigi Colombo , Zhen Yao , Emanuel Tutuc , Sanjay K. Banerjee

Tunneling field-effect transistors (TFETs) based on 2D materials are promising steep sub-threshold swing (SS) devices due to their tight gate control. There are two major methods to create the tunnel junction in these 2D TFETs: electrical…

介观与纳米尺度物理 · 物理学 2016-08-30 Hesameddin Ilatikhameneh , Gerhard Klimeck , Joerg Appenzeller , Rajib Rahman

We fabricated ambipolar field-effect transistors (FETs) from multi-layered triclinic ReSe2, mechanically exfoliated onto a SiO2 layer grown on p-doped Si. In contrast to previous reports on thin layers (~2 to 3 layers), we extract…

The heat transport in heavy-doped n-GaAs has been investigated at temperatures T=300 K and 77 K using the irradiation of the metal-semiconductor contact by modulated CO_{2}-laser radiation. It is shown this approach giving an opportunity to…

材料科学 · 物理学 2007-05-23 A. Ya. Shul'man , N. A. Mordovets , I. N. Kotel'nikov

We introduce a deep-recessed gate architecture in $\beta$-Ga$_2$O$_3$ delta-doped field effect transistors for improvement in DC-RF dispersion and breakdown properties. The device design incorporates an unintentionally doped…

We argue that interesting strongly correlated two-dimensional electron systems can be created by modulation doping near a heterojunction between Mott insulators. Because the dopant atoms are remote from the carrier system, the electronic…

强关联电子 · 物理学 2009-11-11 Wei-Cheng Lee , A. H. MacDonald

We have stabilized the {\alpha}-Fe1.6Ga0.4O3 (Ga doped {\alpha}-Fe2O3) system in rhombohedral structure. The system has shown magnetically canted ferromagnetic state and ferroelectric properties at room temperature. In first time, we…

材料科学 · 物理学 2016-12-20 R. N. Bhowmik , Abdul Gaffar Lone

By means of first principles schemes based on magnetically constrained density functional theory and on the band unfolding technique we study the effect of doping on the conducting behaviour of the Lifshitz magnetic insulator NaOsO3.…

Amorphous metal oxide thin-film transistors (TFT) are fabricated using InOx-based semiconductors doped with TiO2, WO3 or SiO2. Although density of dopant is low in the film, change in the electrical properties showed strong dependence on…

材料科学 · 物理学 2013-10-25 Shinya Aikawa , Toshihide Nabatame , Kazuhito Tsukagoshi

We report a monolithic bidirectional dual-gate metal-oxide-semiconductor field effect transistor (MOSFET) fabricated on epitaxially grown beta-Ga2O3, demonstrating efficient two-way conduction and blocking. It features two independently…

应用物理 · 物理学 2024-07-29 Pooja Sharma , Saurabh Lodha

A modulation-doping approach to control the carrier density of the high-density electron gas at a prototype polar/non-polar oxide interface is presented. It is shown that the carrier density of the electron gas at a GdTiO3/SrTiO3 interface…

材料科学 · 物理学 2015-06-11 Tyler A. Cain , Pouya Moetakef , Clayton A. Jackson , Susanne Stemmer

We present a comprehensive theoretical study of the magnetic field dependence of the near-field radiative heat transfer (NFRHT) between two parallel plates. We show that when the plates are made of doped semiconductors, the near-field…

III-V heterostructure based high electron mobility transistors (HEMTs) offer superior performance as compared to CMOS silicon transistors owing to the high mobility in the 2D electron gas (2DEG) channel at the heterostructure interface.…

应用物理 · 物理学 2020-10-07 Pallabi Das , Tian-Li Wu , Siddharth Tallur

Precise control of the conductivity of semiconductors through doping has enabled the creation of advanced electronic devices, similarly, the ability to control the conductivity in oxides can enable novel advanced electronic and…

应用物理 · 物理学 2019-02-20 Simone Bianconi , Min-Su Park , Hooman Mohseni

High performance enhancement mode semiconducting carbon nanotube field-effect transistors (CNTFETs) are obtained by combining ohmic metal-tube contacts, high dielectric constant HfO2 films as gate insulators, and electrostatically doped…

介观与纳米尺度物理 · 物理学 2015-06-24 Ali Javey , Jing Guo , Damon B. Farmer , Qian Wang , Dunwei Wang , Roy G. Gordon , Mark Lundstrom , Hongjie Dai

We show herein fabrication and field-modulated thermopower for KTaO3 single-crystal based field-effect transistors (FETs). The KTaO3 FET exhibits field effect mobility of ~8 cm2/Vs, which is ~4 times larger than that of SrTiO3 FETs. The…

强关联电子 · 物理学 2009-12-18 Akira Yoshikawa , Kosuke Uchida , Kunihito Koumoto , Takeharu Kato , Yuichi Ikuhara , Hiromichi Ohta

The effect of proximity to a Mott insulating phase on the charge transport properties of a superconductor is determined. An action describing the low energy physics is formulated and different scenarios for the approach to the Mott phase…

强关联电子 · 物理学 2009-11-07 L. B. Ioffe , A. J. Millis

We report the fabrication of back-gated field-effect transistors (FETs) using ultra-thin, mechanically exfoliated MoSe2 flakes. The MoSe2 FETs are n-type and possess a high gate modulation, with On/Off ratios larger than 106. The devices…

介观与纳米尺度物理 · 物理学 2013-01-04 S. Larentis , B. Fallahazad , E. Tutuc

We calculate magnetization in magnetically doped semiconductors assuming a local exchange model of carrier-mediated ferromagnetic mechanism and using a number of complementary theoretical approaches. In general, we find that the results of…

材料科学 · 物理学 2009-11-07 S. Das Sarma , E. H. Hwang , A. Kaminski

Here we report the properties of field-effect transistors based on few layers of chemical vapor transport grown alpha- MoTe_2 crystals mechanically exfoliated onto SiO_2. We performed field-effect and Hall mobility measurements, as well as…