Spin transport in epitaxial Fe3O4/GaAs lateral structured device

2022 ◽  
Author(s):  
Zhaocong Huang ◽  
Wenqing Liu ◽  
Jian Liang ◽  
Qingjie Guo ◽  
Ya Zhai ◽  
...  
Keyword(s):  
Data Storage ◽  
Field Effect ◽  
Room Temperature ◽  
Field Effect Transistor ◽  
Spin Transport ◽  
Spintronic Devices ◽  
Spin Dependent Transport ◽  
Effect Transistor ◽  
Dependent Transport ◽  
Further Development

Abstract Research in the spintronics community has been intensively stimulated by the proposal of the spin field-effect transistor (SFET), which has the potential for combining the data storage and process in a single device. Here we report the spin dependent transport on a Fe3O4/GaAs based lateral structured device. Parallel and antiparallel states of two Fe3O4 electrodes are achieved. A clear MR loop shows the perfect butterfly shape at room temperature, of which the intensity decreases with the reducing current, showing the strong bias-dependence. Understanding the spin dependent transport properties in this architecture has strong implication in further development of the spintronic devices for room-temperature SFET.

scholarly journals Spin-dependent transport and current modulation in a current-in-plane spin-valve field-effect transistor

2016 ◽  
Vol 109 (15) ◽  
pp. 152403 ◽  
Author(s):  
Toshiki Kanaki ◽  
Tomohiro Koyama ◽  
Daichi Chiba ◽  
Shinobu Ohya ◽  
Masaaki Tanaka
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
Spin Valve ◽  
Current Modulation ◽  
Spin Dependent Transport ◽  
Effect Transistor ◽  
Dependent Transport ◽  
A Current

Quantum Dot Made in Metal Oxide Silicon-Nanowire Field Effect Transistor Working at Room Temperature.

Nano Letters ◽  
2015 ◽  
Vol 15 (5) ◽  
pp. 2958-2964 ◽  
Author(s):  
Romain Lavieville ◽  
François Triozon ◽  
Sylvain Barraud ◽  
Andrea Corna ◽  
Xavier Jehl ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Metal Oxide ◽  
Field Effect ◽  
Room Temperature ◽  
Field Effect Transistor ◽  
Silicon Nanowire ◽  
Effect Transistor ◽  
Metal Oxide Silicon ◽  
Made In

scholarly journals Investigation of Organic Field-Effect Transistor (OFET) based NO2 Sensing Response using Low-Cost Green Synthesized Zinc Oxide Nanoparticles

2020 ◽  
Vol 33 (1) ◽  
pp. 31-36
Author(s):  
G. Balanagireddy ◽  
Ashwath Narayana ◽  
M. Roopa
Keyword(s):  
Zinc Oxide ◽  
Field Effect ◽  
Room Temperature ◽  
Field Effect Transistor ◽  
Low Cost ◽  
Average Particle Size ◽  
Microwave Assisted Synthesis ◽  
Average Particle ◽  
Nanostructured Particles ◽  
Effect Transistor

A low-cost and green-synthesized zinc oxide nanostructured particles are extensively studied owing to their remarkable and ample characteristics with less toxicity and eco-friendly approach. The present work comprehends the green synthesis of ZnO nanostructured particles using bougainvillea leaf extract-arbitrated microwave-assisted synthesis and their use in field effect transistor for nitrogen dioxide sensing at room temperature. The as-synthesized nanoparticles were characterized using analytical techniques; XRD determined the pure crystallite structure with no impurities, SEM confirmed the spherical shape of nanoparticles with ~20 nm (average particle size) and the atomic weight percentage were analyzed using EDAX, notable photophysical properties were revealed from absorption and emission spectra performed using UV-visible spectroscopy. Poly(3-hexylthiophene) and ZnO nanoparticles were employed in the field effect transistor (p-type) for NO2 sensing at room temperature with the mobility (field-effect) of ~10-4 cm2 V-1 s-1. The sensitivity of the fabricated OFET device was extracted from the transistor characteristics (at Vgs = -30 V and Vds = -40 V) found to be ~4.8 × 10-3 nA/ppm. The device exhibited engrossing characteristics such as excellent recoverability (> 95%), with ultrafast response time (< 30 s) and greater sensitivity with high stability as can be assessed from the electrical characteristics.

Bias voltage-dependent low field spin transport properties of Fe3O4–PEG with different particle sizes

2016 ◽  
Vol 30 (23) ◽  
pp. 1650301
Author(s):  
Chunlong Xu ◽  
Zhen Wang ◽  
Lei Wang ◽  
Gang Shi ◽  
Zhaoyang Hou ◽  
...  
Keyword(s):  
Transport Properties ◽  
Bias Voltage ◽  
Room Temperature ◽  
Spin Transport ◽  
Tunneling Effect ◽  
Particle Sizes ◽  
Low Field ◽  
Spin Dependent Transport ◽  
Voltage Dependent ◽  
Dependent Transport

Spin-dependent transport properties of Fe3O4 spheres with diameters from 200 nm to 900 nm have been investigated and polyethylene glycol (PEG) exists on the surface of Fe3O4 particles. The nonlinear I–V curve became obvious with the increase of Fe3O4 diameter, which indicated the tunneling barrier height decreases with the increasing diameter. The magnetoresistance (MR) can reach −13% with an applied low field of 0.2 T at room temperature. With the diameter increase, the MR decreases and the required applied field increases. Moreover, the decrease of MR with the bias voltage increase can be attributed to the spin-dependent tunneling effect through the insulating surface layer of Fe3O4 and PEG.

Sign in / Sign up

Export Citation Format

Share Document