Results 91 to 100 of about 27,394 (270)

Carbon Nanotube Based Magnetic Tunnel Junctions [PDF]

Physical Review Letters, 2000
Spin-coherent quantum transport in carbon nanotube magnetic tunnel junctions was investigated theoretically. A spin-valve effect is found for metallic, armchair tubes, with a magneto-conductance ratio ranging up to 20%. Because of the finite length of the nanotube junctions, transport is dominated by resonant transmission. The magnetic tunnel junctions
Mehrez, H, Taylor, J, Guo, H, Roland, C, Wang, J   +4 more
openaire   +5 more sources

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Chemically Doped Conductive Polymers for Wearable Health Monitoring

Advanced Materials Technologies, EarlyView.
Among conductive polymers, poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), polyaniline (PANI), and polypyrrole (PPy) are the most studied and applied. Chemical doping significantly boosts intrinsic conductivity and mechanical robustness.
Mengdi Zuo, Jian Song, Hong Hu, Le Zheng, Lei Zhang, Charles H. Lawrie   +5 more
wiley   +1 more source

Snapshot on Cell-to-Cell Communication Nanotubes: From Bacteria to Humans

Biology
From bacteria to higher vertebrates, cells have developed different systems to communicate with each other and transmit specific signals in a dynamic interplay with neighborhood cells.
Loredana Moro
doaj   +1 more source

Strong correlation effects in single-wall carbon nanotubes

, 2008
We present an overview of strong correlations in single-wall carbon nanotubes, and an introduction to the techniques used to study them theoretically. We concentrate on zigzag nanotubes, although universality dictates that much ofthe theory can also be ...
Balents L., Giamarchi T., Gogolin A. O., Japaridze G. E., Odintsov A., SAM T. CARR, Tans S. J.   +6 more
core   +1 more source

Extreme‐Temperature Resistant, Flexible, and Sensitive Strain Sensor for Aerospace Parachute Deployment

Advanced Materials Technologies, EarlyView.
In this study, we report a resistive‐type strain sensor fabricated using single‐walled CNTs, are used layer using the pray technique to deposit as conductive, and UV‐resin was spin‐coated as a protection layer. The sensor functioned in harsh temperature variation conditions from −50°C to 125°C without deterioration.
Jagan Singh Meena, Lucas Lum Yu Xiang, Dhivya Dharshini Kannan, Chun Fei Siah, Yeow Kheng Lim   +4 more
wiley   +1 more source

Influence of carrier gas flow rate on carbon nanotubes growth by TCVD with Cu catalyst

Journal of Saudi Chemical Society, 2016
Carbon nanotubes (CNTs) were grown on copper catalyst by thermal chemical vapor deposition (TCVD) using H2 and N2 as carrier gases. CNTs with different morphologies were observed using different carrier gas flow rates.
S.A. Khorrami, R. Lotfi
doaj   +1 more source

Nanoelectromechanical coupling in fullerene peapods probed via resonant electrical transport experiments

, 2010
Fullerene peapods, that is carbon nanotubes encapsulating fullerene molecules, can offer enhanced functionality with respect to empty nanotubes. However, the present incomplete understanding of how a nanotube is affected by entrapped fullerenes is an ...
A Eliasen, AL Cantone, BW Smith, C Joachim, CHL Quay, CWJ Beenakker, D Goldhaber-Gordon, DJ Hornbaker, EB Foxman, H Kondo, H Kuzmany, H Shiozawa, HY Yu, IV Krive, IV Krive, J Chen, J Koch, LA Girifalco, M Ashino, M Galperin, M Monthioux, MC Lüffe, NS Wingreen, P Launois, P Utko, R Leturcq, S Okada, S Sapmaz, SC Benjamin, T Okazaki, Y Meir, Y-K Kwon   +31 more
core   +3 more sources

Magnetic Textiles: A Review of Materials, Fabrication, Properties, and Applications

Advanced Materials Technologies, EarlyView.
Magnetic textiles (M‐textiles) are emerging as a programmable materials platform that merges magnetic matter with hierarchical textile structures. This article consolidates magnetic material classes, textile architectures, and fabrication and magnetization strategies, revealing structure–property–function relationships that govern magneto‐mechanical ...
Li Ke, Moses Kumi, Xiaoming Tao, Junhong Pu   +3 more
wiley   +1 more source

Hierarchical Multi‐Material Architectures With Gradient Design for Dynamic‐Range Flexible Tactile Sensing

Advanced Materials Technologies, EarlyView.
Hierarchical multi‐material TPMS lattices are engineered as flexible tactile sensors by combining soft and stiff elastomeric layers with a conformal conductive coating. The bilayer architecture delivers sensitivity at low pressures while maintaining a broad detectable range under large loads, enabling reliable pressure and vibration monitoring for ...
Reza Noroozi, Domenic Quiquero, Yan Yan Shery Huang, HaoTian Harvey Shi   +3 more
wiley   +1 more source