Results 31 to 40 of about 57,735 (231)

Singlet Oxygen Metabolism: From Genesis to Signaling

Frontiers in Plant Science, 2020
Singlet oxygen (1O2) is an excited state of molecular oxygen with an electron spin shift in the molecular orbitals, which is extremely unstable and highly reactive. In plants, 1O2 is primarily generated as a byproduct of photosynthesis in the photosystem
Vivek Dogra, Chanhong Kim
doaj   +1 more source

Preparation Efficiency of Singlet States in Multi-spin Systems with Different Coupling Configurations

Chinese Journal of Magnetic Resonance
Nuclear spin singlet is a special quantum state that lasts longer than T1 and can be used to study slow diffusion and motion between molecules. The preparation of singlet states is the key to their successful application.
WANG Ziwen, XIN Jiaxiang, WEI Daxiu, YAO Yefeng   +3 more
doaj   +1 more source

Initialization of NMR Quantum Registers using Long-Lived Singlet States

, 2010
An ensemble of nuclear spin-pairs under certain conditions is known to exhibit singlet state life-times much longer than other non-equilibrium states.
Mahesh, T. S., Roy, Soumya Singha
core   +1 more source

Constant-adiabaticity RF-pulses for generating long-lived singlet spin states in NMR

, 2018
A method is implemented to perform "fast" adiabatic variation of the spin Hamiltonian by imposing the constant adiabaticity condition. The method is applied to improve the performance of singlet-state Nuclear Magnetic Resonance (NMR) experiments ...
Brown, Lynda J., Brown, Richard C. D., Hill-Cousins, Joseph T., Ivanov, Konstantin L., Jamain, Baptiste, Kiryutin, Alexey S., Rodin, Bogdan A., Sagdeev, Renad Z., Sheberstov, Kirill F., Yurkovskaya, Alexandra V., Zimmermann, Herbert   +10 more
core   +1 more source

Coherent shuttle of electron-spin states

, 2017
We demonstrate a coherent spin shuttle through a GaAs/AlGaAs quadruple-quantum-dot array. Starting with two electrons in a spin-singlet state in the first dot, we shuttle one electron over to either the second, third or fourth dot.
Baart, T. A., Fujita, T., Reichl, C., Vandersypen, L. M. K., Wegscheider, W.   +4 more
core   +1 more source

5,11‐Di(thiophen‐2‐yl)Tetracene: A Novel Tetracene Derivative for Efficient Singlet Fission with Enhanced Physical and Chemical Stability in Thin Films

Advanced Functional Materials, EarlyView.
In this work, a new tetracene derivative, 5,11‐di(thiophen‐2‐yl)tetracene (2T‐Tc) is introduced, exhibiting enhanced physical and chemical stability, and retaining favorable singlet fission kinetics with near unity triplet pair yield in thin films.
Jieun Lee, Jeoungin Yi, Hyerim Hong, Yu Jin Lee, Feifei Fang, Sangjun Lee, Won Bo Lee, Sungyoung Yun, Kyung‐Bae Park, Jeong‐Il Park, Dongho Kim, Woojae Kim   +11 more
wiley   +1 more source

Medium polarization in asymmetric nuclear matter

, 2016
The influence of the core polarization on the effective nuclear interaction of asymmetric nuclear matter is calculated in the framework of the induced interaction theory.
Cao, L. G., Lombardo, U., Schuck, P., Zhang, S. S.   +3 more
core   +3 more sources

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Charge Dynamics and Spin Blockade in a Hybrid Double Quantum Dot in Silicon

Physical Review X, 2015
Electron spin qubits in silicon, whether in quantum dots or in donor atoms, have long been considered attractive qubits for the implementation of a quantum computer because of silicon’s “semiconductor vacuum” character and its compatibility with the ...
Matias Urdampilleta, Anasua Chatterjee, Cheuk Chi Lo, Takashi Kobayashi, John Mansir, Sylvain Barraud, Andreas C. Betz, Sven Rogge, M. Fernando Gonzalez-Zalba, John J. L. Morton   +9 more
doaj   +1 more source

Intramolecular Down‐ and Up‐Conversion in Dimeric Tetracene Complexes Centered via Platinum(II) and Palladium(II)

Advanced Functional Materials, EarlyView.
Metal‐tetracene dimeric complexes are synthesized through the pyridyl coordination to either Pt(II) or Pd(II). Photophysical properties are systematically compared as a function of the metal using steady‐state and time‐resolved spectroscopy. The Pt(II) dimer exhibits efficient intramolecular singlet fission and subsequent intramolecular up‐conversion ...
Yifan Bo, Yuxuan Hou, Melchor Matabuena, Rik R. Tykwinski, Dirk M. Guldi   +4 more
wiley   +1 more source