Results 111 to 120 of about 827,489 (372)

Side‐Chains Engineered Self‐Assembly of Ortho‐Benzodipyrrole‐Based Acceptors: Comprehensive Exploration of Structure‐Interface‐Photovoltaics Correlations

Advanced Functional Materials, EarlyView.
The side‐chain configuration in the bay region of C‐shaped ortho‐benzodipyrrole‐based non‐fullerene acceptors plays a crucial role in their self‐assembly, single‐crystal structures, and optoelectronic properties. The closely correlated molecular structure and performance underscore the importance of minimizing A–A self‐aggregation and enhancing D–A ...
Yung‐Jing Xue, Chen‐Yu Chang, Chieh‐Ming Hung, Chi‐Chun Tseng, Je‐Wei Chang, Chun‐Jen Su, Chia‐Lin Tsai, Han‐Cheng Lu, Kuo‐Hsiu Huang, Kuei‐Yu Tai, Chien‐Yi Ku, Chia‐Shing Wu, Su‐Ying Chien, Shang‐Da Yang, Bing‐Huang Jiang, Chih‐Ping Chen, Pi‐Tai Chou, U‐Ser Jeng, Yen‐Ju Cheng   +18 more
wiley   +1 more source

Spin Currents Induced by Nonuniform Rashba-Type Spin-Orbit Field

, 2011
We study the spin relaxation torque in nonmagnetic or ferromagnetic metals with nonuniform spin-orbit coupling within the Keldysh Green's function formalism.
Hirsch J. E., Kimura T., Kohno H., Murakami S., Nakabayashi N., Saitoh E., Silsbee R. H., Takeuchi A., Tatara G., Tserkovnyak Y., Uchida K., Valet T., van Son P. C.   +12 more
core   +1 more source

Comprehensive Si Anode Design for Sulfide‐Based all‐Solid‐State Batteries: Insights into Si‐Electrolyte Synergy for Mitigating Contact Loss

Advanced Functional Materials, EarlyView.
Silicon anodes in sulfide‐based all‐solid‐state batteries suffer from interfacial instability caused by volumetric fluctuations and contact degradation, restricting their practical implementation despite high capacity. This study presents design strategies that leverage controlled active material expansion and an elastic recoverable anolyte to form an ...
Youngjin Song, Sungjin Cho, Suhwan Kim, Youyeong Shin, Ikcheon Na, Jongwoo Lim, Yong Min Lee, Soojin Park   +7 more
wiley   +1 more source

Pentagonal 2D Altermagnets: Material Screening and Altermagnetic Tunneling Junction Device Application

Advanced Functional Materials, EarlyView.
From a database of 170 pentagonal 2D materials, 4 candidates exhibiting altermagnetic ordering are screened. Furthermore, the spin‐splitting and unconventional boundary states in the pentagonal 2D altermagnetic monolayer MnS2 are investigated. A MnS2‐based altermagnetic tunneling junction is designed and, through ab initio quantum transport simulations,
Jianhua Wang, Xingyue Yang, Zongmeng Yang, Jing Lu, Pin Ho, Wenhong Wang, Yee Sin Ang, Zhenxiang Cheng, Shibo Fang   +8 more
wiley   +1 more source

Controller for computer control of brushless dc motors [PDF]

, 1981
A motor speed and torque controller for brushless d.c. motors provides an unusually smooth torque control arrangement. The controller provides a means for controlling a current waveform in each winding of a brushless dc motor by synchronization of an ...
Hieda, L. S.
core   +1 more source

Van der Waals torque induced by external magnetic fields

, 2010
We present a method for inducing and controlling van der Waals torques between two parallel slabs using a constant magnetic field. The torque is calculated using the Barash theory of dispersive torques. In III-IV semiconductors such as $InSb$, the effect
Barash Y., Casimir H. B. G., Esquivel-Sirvent R., G. H. Cocoletzi, Levin M. L., Lifshitz E. M., M. Palomino-Ovando, R. Esquivel-Sirvent   +7 more
core   +1 more source

Prospects of Electric Field Control in Perpendicular Magnetic Tunnel Junctions and Emerging 2D Spintronics for Ultralow Energy Memory and Logic Devices

Advanced Functional Materials, EarlyView.
Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp, Brahmdutta Dixit, Yifei Yang, Deyuan Lyu, Thomas Peterson, Qi Jia, Yu‐Chia Chen, Jian‐Ping Wang   +7 more
wiley   +1 more source

Nanomechanical Detection of Itinerant Electron Spin Flip

, 2008
Spin is an intrinsically quantum property, characterized by angular momentum. A change in the spin state is equivalent to a change in the angular momentum or mechanical torque.
A Einstein, AA Kovalev, Alexei Gaidarzhy, BR Heckel, C Ascoli, C Kittel, EB Myers, G Volpe, GG Scott, Guiti Zolfagharkhani, H Noji, J Fabian, J-E Wegrowe, JC Slonczewski, JZ Sun, L Berger, M Johnson, M Johnson, M Pospelov, M Tsoi, MD Stiles, OW Richardson, P Fulde, P Mohanty, P Weiss, Pascal Degiovanni, Peter Fulde, Pritiraj Mohanty, RA Beth, RJ Soulen, SJ Barnett, SK Upadhyay, Stefan Kettemann, TM Wallis, WS Ryu, Z Bryant   +35 more
core   +4 more sources

Excited State Modulation in Carbene‐Metal‐Amides to Design Fast and Bright Blue Delayed Fluorescence

Advanced Functional Materials, EarlyView.
Gold‐centered carbene‐metal amide (CMA) materials with carbonyl‐group substitution on the amide donor ligand. Molecular design ensures that the charge transfer (CT) state is lower in energy than the locally excited (3LE) states. The energy difference between CT and LE states controls the rate of the delayed fluorescence.
Charlotte Riley, Nguyen Le Phuoc, Mikko Linnolahti, Alexander S. Romanov   +3 more
wiley   +1 more source

New torque and flux controllers for direct torque control of induction machines [PDF]

, 2003
The new torque and flux controllers with constant switching frequency and low torque and flux ripples for direct torque control induction machine drives are presented.
Idris, N.R.N, Toh, C.L, Yatim, A.H.M
core