Results 31 to 40 of about 249 (207)

Thermally Robust Room‐Temperature Interlayer Excitons in a Hybrid van der Waals Heterostructure

Advanced Functional Materials, EarlyView.
We report an optically active interlayer exciton in a hybrid van der Waals (PEA)2PbBr4/MoS2 heterostructure that remains thermally stable up to 400 K. The emission exhibits polarization anisotropy consistent with an out‐of‐plane optical transition‐dipole component and shows lifetime extension indicative of electron–hole separation.
Seoyeon Ko, Hyeon Jun Jeong, Soungmin Bae, Jieun Jo, Chan Kwon, Hayoung Ko, Dong Hyeon Kim, Hyunjung Shin, Mun Seok Jeong, Seokhyun Yoon   +9 more
wiley   +1 more source

From Cryptography to Logic Locking: A Survey on the Architecture Evolution of Secure Scan Chains

IEEE Access, 2021
The availability of access to Integrated Circuits’ scan chain is an inevitable requirement of modern ICs for testability/debugging purposes. However, leaving access to the scan chain OPEN resulted in numerous security threats on ICs.
Kimia Zamiri Azar, Hadi Mardani Kamali, Houman Homayoun, Avesta Sasan   +3 more
doaj   +1 more source

Thermal‐Driven Diode Polarity Switching From Competing Helical Superconducting States in WTe2/α‐Fe2O3 Heterostructures

Advanced Materials, EarlyView.
A Nb‐proximitized Josephson junction based on a WTe2/α‐Fe2O3 heterostructure exhibits a robust superconducting diode effect with programmable polarity. The diode direction can be trained by magnetic fields and switched by temperature cycling, revealing tunable finite‐momentum pairing states and competing superconducting states in symmetry‐broken ...
Enze Zhang, Grant Z. X. Yang, Zi‐Ting Sun, Xinhou Chen, Shishun Zhao, Chufan Chen, Chenhui Zhang, Fanrui Hu, K. T. Law, Hyunsoo Yang   +9 more
wiley   +1 more source

Dual-Doped Reconfigurable FETs for Hardware Security: A TCAD Approach

IEEE Access
A novel variant of reconfigurable FETs (RFETs), employing source and drain doped terminals instead of Schottky contacts, is explored through TCAD simulations for implementing logic circuits that integrate Design-for-Trust (DfTr) techniques. These include
Ruben Ortega, Antonio Hervas, Luca Donetti, Alberto Martinez, Carlos Marquez, Manuel Cano-Garcia, Francisco Gamiz, Carlos Navarro   +7 more
doaj   +1 more source

Non-Boolean Associative Processing: Circuits, System Architecture, and Algorithms

IEEE Journal on Exploratory Solid-State Computational Devices and Circuits, 2015
We present the design and the performance of a hierarchical associative memory (AM) based on phase locking of coupled oscillators used for pattern recognition.
Yan Fang, Chet N. Gnegy, Tadashi Shibata, Denver Dash, Donald M. Chiarulli, Steven P. Levitan   +5 more
doaj   +1 more source

Giant Orbital Rashba–Edelstein Effect in Crystalline Cu2O/Cu Heterostructures

Advanced Materials, EarlyView.
An enhanced orbital Rashba–Edelstein effect is demonstrated in a crystalline Cu2O/Cu heterostructure, compared to naturally oxidized CuOx structures, highlighting the critical role of crystallinity and interface control in orbital torque generation. The resulting spin torque conductivity exceeds that of Pt, indicating the potential of orbital torque ...
San Ko, Jaimin Kang, Su Jae Kim, Hanhwi Jang, Do‐Kyeong Nam, Minseok Kang, Sunghoon Kim, Yeon Sik Jung, Se‐Young Jeong, Kab‐Jin Kim, Byong‐Guk Park   +10 more
wiley   +1 more source

Design and optimization of pneumatic locking control system for underground coal mine dampers

Meikuang Anquan
In practical applications of coal mines, there is a low-probability phenomenon of double-opening in pneumatic dampers. To solve the problem of pneumatic damper locking failure, we first analyze the action logic of the pneumatic damper in the default ...
Bian HUANG, Wei LI, Yanqing LIU, Yaoqiang WANG, Lihua WANG   +4 more
doaj   +1 more source

Hybrid Shielding: Amplifying the Power of Camouflaging and Logic Encryption

IEEE Access, 2023
In the semiconductor industry, protecting Integrated Circuits (IC) throughout the IC supply chain has become a major concern. In-depth research has been done on logic encryption, split manufacturing, and layout camouflaging to safeguard ICs against ...
Nikhil Saxena, Ranga Vemuri
doaj   +1 more source

Epitaxially Integrated Electro‐Optic KNbO3 Thin Films on Silicon

Advanced Materials, EarlyView.
We demonstrate the first epitaxial integration of electro‐optic KNbO3 thin films on silicon using suboxide molecular‐beam epitaxy. Combining adsorption‐controlled molecular‐beam epitaxy, advanced characterization, and phase‐field modeling, we demonstrate phase‐pure crystalline films mirroring bulk crystals with robust Pockels response, enabling future ...
Sankalpa Hazra, Tobias Schwaigert, Yingxin Zhu, Aiden Ross, Muhammad Aminul Haque Chowdhury, Shun‐Li Shang, Sameer Singh, Zhiyu Zhang, Zhe Wang, Brynn Brower, Saugata Sarker, Suchismita Sarker, Zi‐Kui Liu, Rama K. Vasudevan, Long‐Qing Chen, Yang Yang, Darrell G. Schlom, Venkatraman Gopalan   +17 more
wiley   +1 more source

Locking control of underground signal lights based on improved Kalman filter and state observer

Gong-kuang zidonghua
During underground ramp transportation in non-coal mines, traditional signal light locking control method is ineffective due to insufficient UWB dynamic positioning accuracy, long sampling interval of vehicle positioning cards, and data loss.
WANG Xueming, HUANG Jingzhi, SONG Chuanzhi, WU Daifeng   +3 more
doaj   +1 more source