Results 71 to 80 of about 3,652,202 (242)

Gold Clusters With Open‐Shell Ligands: Superatom Mediated Magnetic Interaction

Angewandte Chemie, EarlyView.
Open‐shell verdazyl radicals were covalently integrated with atomically precise Ir‐doped Au12 (Ir@Au12) superatoms. The resulting radical–superatom hybrids exhibit photoinduced electron transfer, spin delocalization onto the metal‐cluster core, and weak ferromagnetic communication between radicals mediated by the superatomic electronic structure ...
Katsuya Mutoh, Kosei Hayashi, Yoichi Kobayashi, Kazunobu Sato, Rika Tanaka, Daichi Kitagawa, Tatsuya Tsukuda, Takuya Nakashima   +7 more
wiley   +2 more sources

Plaid‐Like Spin Splitting and Chirality of Magnon Bands in Antiferromagnetic MnTe2

Advanced Science, EarlyView.
Helicity‐ and angle‐resolved Raman spectroscopy reveals chiral magnons in the non‐coplanar antiferromagnet MnTe 2. Combined with first‐principles calculations and spin‐wave theory, the results establish its altermagnetic character through circular Raman dichroism, reduced rotational symmetry, and a distinctive plaid‐like momentum‐space magnon spin ...
Dirk Wulferding, Daehyeon An, Jiwon Choi, Dongmin Moon, Youngsu Choi, Sivasakthi Kuppusamy, Sritharan Krishnamoorthi, Raman Sankar, Myung Joon Han, Se Kwon Kim, Kwang‐Yong Choi   +10 more
wiley   +1 more source

Synthesis and One‐Electron Reduction of Donor‐Acceptor‐Stabilized SiII–EII–SiII Trimetallylenes (E = Ge, Sn, Pb)

Angewandte Chemie, EarlyView.
The first isolable trimetallylenes (SiII)2EII (E = Ge, Sn, Pb) with pπ‐type silanylidenyl donors have been synthesized, having donor–acceptor electronic structures that give rise to near‐infrared absorption and enable access to bis(silanylidenyl)‐supported GeI and SnI radical anions upon one‐electron reduction with elemental potassium. ABSTRACT Herein,
Chaopeng Hu, Shenglai Yao, Christian Lorent, Matthias Driess   +3 more
wiley   +2 more sources

Ultra-relativistic electron flux enhancement under persistent high speed solar wind stream

Frontiers in Astronomy and Space Sciences
The physical mechanisms usually applied to explain the relativistic electron enhancement have been delved into to elucidate non-adiabatic electron acceleration resulting in the ultra-relativistic electron population observed in the outer radiation belt ...
L. R. Alves, L. A. da Silva, L. A. da Silva, V. Deggeroni, J. P. Marchezi, P. R. Jauer, P. R. Jauer, G. B. D. Silva, D. G. Sibeck   +8 more
doaj   +1 more source

Data‐Driven Discovery of Unconventional Antiferromagnets

Advanced Science, EarlyView.
A high‐throughput workflow that combines the physics‐informed pre‐screening, high‐throughput exchange calculations, Luttinger‐Tisza analysis and symmetry classification is established for accurate identification of unconventional antiferromagnets from the broad structural database.
Qirui Cui, Chenxu Liu, Anna Delin, Kaiyou Wang   +3 more
wiley   +1 more source

T‐Shaped Stibenium(III) Cation: Hydrostibination Without Sb─H Bond

Angewandte Chemie, EarlyView.
A cationic, structurally constrained stibenium platform mediates anti‐Markovnikov hydrostibination of alkenes via element–ligand cooperativity (ELC), thereby bypassing the need for weak Sb─H bonds. ABSTRACT The hydrostibination of alkenes represents a largely underdeveloped transformation, owing to the intrinsic lability of the required Sb─H reagents ...
Ekta Nag, Lars Ole Busse, Andreas Albers, Manuel Schmitt, Lutz Greb   +4 more
wiley   +2 more sources

Broadband Kinetic Alfvén Waves and the Pitch Angle Distribution of Relativistic Electrons

Geophysical Research Letters
A statistical survey using 3 years of Van Allen Probes data from 2013 to 2015 is conducted to investigate the impact of broadband kinetic Alfvén waves (KAWs) on the pitch angle distributions (PADs) of relativistic electrons. 62 events exhibiting distinct
K. C. Barik, C. C. Chaston
doaj   +1 more source

Enhancing Near‐Room‐Temperature Thermoelectric Performance of n‐Type Mg3(Sb, Bi)2‐Based Materials via ZrB2 Heterointerface Engineering

Advanced Science, EarlyView.
A conductive ZrB2 ceramic composite strategy was developed for Mg3(Sb, Bi)2 thermoelectrics to regulate carrier transport and phonon scattering through heterointerface engineering. The 1.0 wt.% ZrB2 composite achieved enhanced room‐temperature performance, with a power factor of 28.51 µW cm−1 K−2 and a peak ZT of 1.22 at 573 K.
Yangyang Xu, Li Zhang, Meng Li, Jie Zhang, Nan‐Hai Li, Yan‐Ling Yang, Xiao‐Lei Shi, Zhi‐Gang Chen   +7 more
wiley   +1 more source

Unraveling Terminal Cobalt–Antimony Double Bond: Breaking New Ground in Heavy Pnictogen Multiple Bonds

Angewandte Chemie, EarlyView.
N‐heterocyclic carbenes (NHCs) function as “molecular scissors,” cleaving otherwise inert Sb═Sb bonds in distibenes to generate monomeric, zwitterionic stibinide species. These intermediates act as efficient stibinidene transfer reagents, granting access to a rare terminal cobalt–stibinidene complex.
Daniel Meleschko, Prasenjit Palui, Rosa M. Gomilia, Morgan J. McKee, Gregor Schnakenburg, Nikolay Kornienko, Antonio Frontera, Alessandro Bismuto   +7 more
wiley   +2 more sources

First velocity-space resolved measurements of relativistic electron losses in a magnetically confined plasma

Nuclear Fusion
This letter reports on the first direct velocity-space resolved measurements of runaway electrons (REs) losses in magnetically confined plasmas using a unique Fast Particle Loss Detector (FPLD) installed on the magnetic confinement fusion device Tokamak ...
J. Poley-Sanjuán, L. Simons, A. Jansen Van Vuuren, B.P. Duval, A. Fasoli, A.N. Karpushov, J. Decker, the TCV Team   +7 more
doaj   +1 more source