Results 61 to 70 of about 96,545 (355)

Structure of F2(-) centers in K2YF5 and their relation to thermoluminescence below room temperature [PDF]

, 2009
X-ray irradiation at 77 K produces signals from several trapped hole and/or electron centers in the electron-paramagnetic-resonance (EPR) spectra of rare-earth-doped K2YF5.
Callens, Freddy, Poelman, Dirk, Smet, Philippe, Vrielinck, Henk, Zverev, Dmitry   +4 more
core   +1 more source

Controlled Aggregation of Pyrene‐Based Supramolecular Nanostructures for Light‐Driven Switchable H2 or H2O2 Production

Advanced Functional Materials, EarlyView.
This work reports the self‐assembly of a pyrene derivative into two distinct nanostructures and their application in visible‐light photocatalysis. The two nanostructures exhibit completely different yet complementary photocatalytic activities, promoting either H2 or H2O2 evolution.
Marianna Barbieri, Matilde Doardo, Ilaria Fortunati, Anna Fortunato, Elisabetta Collini, Francesca Arcudi, Luka Ðorđević   +6 more
wiley   +1 more source

Electron spin dynamics during microwave pulses studied by 94 GHz chirp and phase-modulated EPR experiments [PDF]

Magnetic Resonance
Electron spin dynamics during microwave irradiation are of increasing interest in electron paramagnetic resonance (EPR) spectroscopy, as locking electron spins into a dressed state finds applications in EPR and dynamic nuclear polarization (DNP ...
M. Lenjer, M. Lenjer, N. Wili, F. Hecker, F. Hecker, M. Bennati, M. Bennati   +6 more
doaj   +1 more source

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

Advanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Jordi Llorca, Lluís Soler   +4 more
wiley   +1 more source

Determination of the fraction of paramagnetic centers not-fulfilling the Curie law in coal macerals by the two-temperature EPR measurement method

Nukleonika, 2015
Two-temperature electron paramagnetic resonance (EPR) measurements, applied to determine the relative contributions of paramagnetic centers – fulfilling and not-fulfilling the Curie law, were carried out.
Słowik Grzegorz P., Więckowski Andrzej B.   +1 more
doaj   +1 more source

Collective character of spin excitations in a system of Mn$^{2+}$ spins coupled to a two-dimensional electron gas

, 2003
We have studied the low energy spin excitations in n-type CdMnTe based dilute magnetic semiconductor quantum wells. For magnetic fields for which the energies for the excitation of free carriers and Mn spins are almost identical an anomalously large ...
A. K. Hassan, A. Sachrajda, C. Kittel, D. K. Maude, D. Plantier, F. J. Teran, G. Karczewski, J. Jaroszynski, J. König, M. Potemski, M. F. Deigen, T. Wojtowicz, Z. Wilamowski   +12 more
core   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

An electron paramagnetic resonance study of Pr_{0.6}Ca_{0.4}MnO_{3} across the charge ordering transition

, 2000
We report the first electron paramagnetic resonance studies of single crystals and powders of Pr_{0.6}Ca_{0.4}MnO_{3} in the 300-4.2 K range, covering the charge ordering transition at ~ 240 K and antiferromagnetic transition (T_N) at ~ 170 K.
A K Sood, C N R Rao, De Teresa J M, Guha A, Janhavi P Joshi, Kittel C, Lees M R, Murugavel P, Pilbrow J, Rajeev Gupta, Rao C N R, S V Bhat, Tomioka Y, Yoshozawa H   +13 more
core   +1 more source

S = 3 Ground State for a Tetranuclear Mn^(IV)₄O₄ Complex Mimicking the S₃ State of the Oxygen Evolving Complex [PDF]

, 2020
The S₃ state is currently the last observable intermediate prior to O–O bond formation at the oxygen-evolving complex (OEC) of Photosystem II, and its electronic structure has been assigned to a homovalent Mn^(IV)₄ core with an S = 3 ground state.
Agapie, Theodor, Britt, R. David, Chatterjee, Ruchira, Lee, Heui Beom, Marchiori, David A., Oyala, Paul H., Yano, Junko   +6 more
core  

Electrically detected magnetic resonance of carbon dangling bonds at the Si-face 4H-SiC/SiO$_2$ interface [PDF]

, 2017
SiC based metal-oxide-semiconductor field-effect transistors (MOSFETs) have gained a significant importance in power electronics applications. However, electrically active defects at the SiC/SiO$_2$ interface degrade the ideal behavior of the devices ...
D. Peters, G. Gruber, G. Pobegen, J. Cottom, M. Koch, P. Hadley, R. Meszaros, T. Aichinger, Weil J.   +8 more
core   +2 more sources