Results 41 to 50 of about 25,830 (234)

Transconductance and effective Land\'e factors for quantum point contacts: spin-orbit coupling and interaction effects

open access: yes, 2015
We analyze the effective $g^*$ factors and their dependence on the orientation of the external magnetic field for a quantum point contact defined in the two-dimensional electron gas.
Kolasiński, K.   +2 more
core   +1 more source

Asymmetric Contact Engineering for Bottleneck‐Free Transport in 2D MoS2 Field‐Effect Transistor

open access: yesAdvanced Functional Materials, EarlyView.
Performance of 2D semiconductor transistors is limited by carrier transport bottlenecks arising from specific device geometries. By identifying this structural limitation, a bottleneck‐free asymmetric transistor architecture (BATA) is introduced to improve carrier transport.
Jinhyeok Pyo   +10 more
wiley   +1 more source

Current and Voltage Mode Multiphase Sinusoidal Oscillators Using CBTAs [PDF]

open access: yes, 2013
Current-mode (CM) and voltage-mode (VM) multiphase sinusoidal oscillator (MSO) structures using current backward transconductance amplifier (CBTA) are proposed.
Ayten, U. E.   +3 more
core   +1 more source

Liquid and back gate coupling effect: towards biosensing with lowest detection limit

open access: yes, 2013
We employ noise spectroscopy and transconductance measurements to establish the optimal regimes of operation for our fabricated silicon nanowire field-effect transistors (Si NW FETs) sensors.
Kovalenko, Valery   +6 more
core   +1 more source

A Complementary Recycling Operational Transconductance Amplifier with Data-Driven Enhancement of Transconductance [PDF]

open access: yesElectronics, 2019
An improved operational transconductance amplifier (OTA) is presented in this work. The fully differential OTA adopts the current recycling technique and complementary NMOS and PMOS input branches to enhance the total transconductance. Moreover, in order to achieve higher current efficiency, a data-driven biasing circuit was developed to dynamically ...
Xiang Li   +5 more
openaire   +1 more source

Trap‐Assisted Transport and Neuromorphic Plasticity in Lead‐Free 2D Perovskites PEA2SnI4

open access: yesAdvanced Functional Materials, EarlyView.
An artificial retina built from lead‐free layered perovskite (PEA)2SnI4 converts light input into a persistent photocurrent and sums successive flashes over time. Micro/nanocrystals integrated on electrodes act as synapse‐like pixels that perform temporal integration directly in hardware. This in‐sensor preprocessing merges detection and computation on
Ofelia Durante   +17 more
wiley   +1 more source

Electronically Tunable Resistorless Mixed Mode Biquad Filters [PDF]

open access: yes, 2013
This paper presents a new realization of elec¬tronically tunable mixed mode (including transadmittance- and voltage-modes) biquad filter with single input, three outputs or three inputs, single output using voltage differ-encing transconductance ...
Kacar, F., Yesil, A.
core   +1 more source

Indirect Band Edge and Chain‐Locked Linear Dichroism in the Quasi‐1D Van der Waals Antiferromagnet AgCrP2S6

open access: yesAdvanced Functional Materials, EarlyView.
AgCrP2S6 reveals a momentum‐indirect band edge (≈1.35 eV) and chain‐locked linear dichroism: the first direct transitions emerge at 1.6–1.8 eV for E||a. Resonant Raman and photoemission corroborate this assignment. In ACPS/graphene heterostructures, photocurrent turns on above ≈1.5 eV and follows the same polarization selection rules (anisotropy ≈0.53),
Oleksandr Volochanskyi   +9 more
wiley   +1 more source

A High Gain Operational Amplifier With Dual-Tail Source Architecture for Fast Slewing

open access: yesIEEE Open Journal of Circuits and Systems
This work introduces an enhanced operational amplifier architecture in which four flipped voltage follower (FVF) cells act as adaptive tail current sources to improve the performance of a conventional current mirror (CM)-based design.
Meysam Akbari   +3 more
doaj   +1 more source

Analog/RF Performance Investigation of Dopingless FET for Ultra-Low Power Applications

open access: yesIEEE Access, 2019
In this paper, we investigated the performance of a dopingless (DL) double gate fieldeffect transistor (DL-DGFET) for ultra-low power (ULP) analog/RF applications. It is observed that the source/drain metal electrode work-function engineering in DL-DGFET
Ankit Sirohi   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy