Results 131 to 140 of about 1,947,311 (293)

Parity‐Dependent THz Harmonic Generation in Electrically Pumped Micro‐Lasers Exploiting Topological Insulator–Metamaterial Gratings

Advanced Materials, EarlyView.
Topological insulator–metamaterials integrated with electrically driven terahertz quantum cascade lasers enable parity‐dependent harmonic generation. Bulk‐dominated Bi2Se3 favors third‐harmonic emission at 9.96 THz, whereas topological‐surface‐state‐dominated Bi2Se3, Bi2Te3, and (Bi,Sb)2Te3 generate strong second harmonics near 6.5 THz.
Alessandra Di Gaspare, Craig S. Knox, Ahmet Yagmur, Sara Ghayeb Zamharir, Lianhe Li, Satoshi Sasaki, A. Giles Davies, Edmund H. Linfield, Joshua R. Freeman, Miriam S. Vitiello   +9 more
wiley   +1 more source

Edge localized mode control using n   =  1 resonant magnetic perturbation in the EAST tokamak

, 2017
A set of in-vessel resonant magnetic perturbation (RMP) coil has been recently installed in EAST. It can generate a range of spectrum, and there is a relatively large window for edge localized mode (ELM) control according to the vacuum field modeling of ...
Wan, B., Li, Yun, Ji, X., Wang, L., Gu, S., Yang, X., Lyu, B., He, K., Song, Y., Li, G., Chu, N., Shi, T., Xu, L., Zhang, T., Gao, G., Sheng, Z., Wang, S., Zang, Q., Liu, Y., Qian, J., Liu, Y. Q., Wang, H. H., Yuan, Q., Jia, M., Gong, X., Liang, Yunfeng, Qi, M., Fu, P., Shen, B., Sun, Y., Chen, D., Guo, W., Zhao, H.   +32 more
core   +1 more source

Percolation‐Driven β‐Relaxation Enables Resonant Acceleration of Crystallization in Amorphous Phase‐Change Materials

Advanced Materials, EarlyView.
Mobile‐atom percolation underlying β‐relaxations fundamentally dictates the crystallization pathways of phase‐change materials. High‐frequency ultrasonic excitation dynamically modulates this critical mobility percolation network, substantially accelerating the crystallization process.
Yu‐Yao Liu, Liang Gao, Jun‐Ying Jiang, Yiming Zhou, Jan Luebben, Di Zhao, Xiaoling Lu, Maximilian J. Müller, Ulrich Boettger, Jiang‐Jing Wang, Hai‐Bin Yu, Shuai Wei   +11 more
wiley   +1 more source

MARS-F/K modeling of plasma response and fast ion losses due to RMP in KSTAR

Nuclear Fusion
The toroidal single-fluid magnetohydrodynamic (MHD) code MARS-F (Liu et al 2000 Phys. Plasmas   7 3681) and the MHD-kinetic hybrid code MARS-K (Liu et al 2008 Phys.
Yueqiang Liu, S.M. Yang, J.S. Kang, J. Van Blarcum, M.J. Choi, H. Frerichs, S.K. Kim   +6 more
doaj   +1 more source

Ionic Cocrystal Programming of Spatial Ionic Organization in Carbon Nitrides Enables Highly Efficient H2O2 Photosynthesis

Advanced Materials, EarlyView.
Ionic cocrystal‐programmed ionic organization establishes a general strategy for electrostatic programming in polymeric photocatalysts. ABSTRACT Controlling the spatial organization of ions in polymeric photocatalysts remains a fundamental challenge for optimizing charge transport and catalytic selectivity in solar‐driven hydrogen peroxide (H2O2 ...
Anna Lo Presti, Zahra Hajiahmadi, Sam A. J. Hillman, Mu Xiao, James R. Durrant, Thomas D. Kühne, Christian Mark Pelicano   +6 more
wiley   +1 more source

New insights into error field assessment from mode coupling effects based on RMP spectrum scanning experiments in EAST

Nuclear Fusion
Numerical simulations concerning the spectrum of resonant magnetic perturbation (RMP) on field penetration threshold in EAST are presented, since the underlying physics is not well understood by the linear response model.
Cheng Ye, You-Wen Sun, Hui-Hui Wang, Yue-Qiang Liu, Peng-Cheng Xie, Hui Sheng   +5 more
doaj   +1 more source

High‐Mobility Chalcogenophene‐Engineered Diketopyrrolopyrrole Mixed Ionic‐Electronic Conductors With Doping Tolerance for Low‐Power Organic Electrochemical Transistors

Advanced Materials, EarlyView.
Chalcogen substitution emerges as a powerful strategy for designing high‐performance OMIECs. In aliphatic–glycol side chain diketopyrrolopyrrole polymers, biselenophene incorporation promotes a planar, polarizable, and doping‐tolerant quinoidal framework, enabling PDPP‐4EG‐Se2 to combine high hole mobility, large µC*, enhanced operational stability ...
Shinbee Oh, Tae Hoon Kim, Dahyun Jeong, Ji Hwan Kim, Seungjin Lee, Tan Ngoc‐Lan Phan, Alexander Tipan‐Quishpe, Myung‐Han Yoon, Keehoon Kang, Bumjoon J. Kim   +9 more
wiley   +1 more source

Descriptor‐Informed Screening of Interface‐Active Molecules for Efficient Magnesium Metal Anodes

Advanced Materials, EarlyView.
A descriptor‐informed molecular screening strategy identifies 4‐bromo‐N, N‐dimethylaniline (BrNNA) as an interface‐active electrolyte component that enables fast Mg stripping/plating in Mg(TFSI)2‐based electrolytes. By simultaneously regulating Mg2+ solvation and interphase formation, the BrNNA‐containing electrolyte delivers activation‐free Mg ...
Hao Xu, Yue Li, Tian Xie, Arafat Hossain Khan, Fengzhan Sun, Zhao Li, Lingyue Liu, Zhaohui Yang, Xinlong Xie, Huayu Qiu, Quanquan Guo, Tian Sun, Xingyuan Chu, Jingwei Du, Jianxin Zou, Xinliang Feng, Minghao Yu   +16 more
wiley   +1 more source

Pulsed Oxidative–Reductive Electrolysis Over Dual Cu and Co Single‐Atom Sites for Urea Electrosynthesis

Advanced Materials, EarlyView.
Alternating oxidative–reductive pulses synchronize CO2‐derived *CO and NH3‐derived *NHx intermediates over dual Cu and Co single‐atom sites, enabling urea and ethyl urea formation with a total C─N Faradaic efficiency of 42 ± 4%. In situ spectroscopy and theoretical calculations elucidate complementary Cu and Co functions, while oxidative controls ...
Putri Ramadhany, Peiqi Qiu, Thành Trần‐Phú, Denny Gunawan, Bernt Johannessen, Rosalie K. Hocking, Yan Jiao, Rose Amal, Rahman Daiyan   +8 more
wiley   +1 more source

Runaway electron losses enhanced by resonant magnetic perturbations

, 2011
Disruptions in large tokamaks can lead to the generation of a relativistic runaway electronbeam that may cause serious damage to the first wall. To suppress the runaway beam the applicationof resonant magnetic perturbations (RMP) has been suggested.
Papp, Gergely,, Drevlak, M, Helander, Per,, Pokol, Gergö,, Fülöp, Tünde,   +4 more
core